| 单词 | carbide |
| 例句 | I was given my own carbide light, my own pickax, and my own place to work. Prisoner B-3087 2013-03-01T00:00:00Z In the carbide light from a dozen watching headlamps, something glittered and shone in his cuts. Prisoner B-3087 2013-03-01T00:00:00Z Donning the hat, he said with a smirk, “Big pink thing with feathers, huh? If it doesn’t come with a carbide gas light, I’m not interested.” Moon Over Manifest 2010-10-12T00:00:00Z Very soon we left the electric lights behind and could see only as far ahead of us as our kapo’s carbide headlamp. Prisoner B-3087 2013-03-01T00:00:00Z Wolfspeed makes silicon carbide chips used to extend the range of electric vehicles. Wolfspeed jumps on upbeat quarterly forecast 2023-10-30T04:00:00Z Those same defects in silicon carbide can also be qubits within a quantum system. Using sound to test devices, control qubits 2023-10-25T04:00:00Z I was working toward my Ph.D. in mechanical engineering at the University of California, Berkeley, when I encountered silicon carbide, and its unreal properties got me hooked on materials science. What It Takes to Grow Crystals in Space 2023-10-23T04:00:00Z The team investigated high-entropy carbides featuring various combinations of five metal elements. Electron-rich metals make ceramics tough to crack 2023-10-19T04:00:00Z Coherent , a major U.S. supplier of materials used to make chips for the automotive industry, said on Tuesday Japan's Denso and Mitsubishi Electric will invest $1 billion in the company's silicon carbide business. GM, Canadian union reach tentative agreement, ending strike 2023-10-10T04:00:00Z The team plans to look at other materials, like carbide ceramics, that are even stronger than glass to see how they work and behave. Strength is in this glass's DNA 2023-09-27T04:00:00Z Hartung said buying the California plant, which has been making chips since the 1980s and has produced automotive-grade chips for years, will speed Bosch's entry into the race to make silicon carbide chips. Bosch CEO says US support needed for full expansion of California chip factory 2023-08-30T04:00:00Z But silicon carbide is 60 percent less sensitive to cosmic rays than silicon. What It Takes to Grow Crystals in Space 2023-10-23T04:00:00Z They identified two high-entropy carbides that exhibited exceptional resistance to cracking under load or stress, thanks to their high valence electron concentrations. Electron-rich metals make ceramics tough to crack 2023-10-19T04:00:00Z Bosch said in April that it planned to buy key assets of TSI's chip production facilities and invest $1.5 billion to retool the Roseville, California site to make silicon carbide chips. Bosch closes deal to buy US semiconductor foundry in EV chip push 2023-08-30T04:00:00Z The maker of silicon carbide microchips is selling its radio frequency business. Lowe’s Fabrinet rise; Macy’s Canadian Solar fall, Tuesday, 8/22/2023 2023-08-22T04:00:00Z But in the meantime, using an existing site will help bring the silicon carbide business's profit margins in line with the broader company's margins, even after accounting for spending money to expand production. On Semiconductor forecasts robust Q3 revenue on silicon carbide strength 2023-07-31T04:00:00Z Realizing that silicon carbide might have the right properties to work in space set the direction for my career, which combines materials studies with space exploration. What It Takes to Grow Crystals in Space 2023-10-23T04:00:00Z A source at a Japanese automotive supplier told Reuters the company was weighing up whether to use gallium nitride or silicon carbide for future power semiconductors. China gallium curbs raise chip questions for future EV models 2023-07-11T04:00:00Z But silicon carbide is difficult to work with: Components must be molded from a powder and baked into ceramic. Euclid telescope to seek source of dark energy—the biggest mystery in the universe 2023-06-21T04:00:00Z Toyota also said it was developing silicon carbide wafers for semiconductors that would be used in next-generation EV inverters, technology also being developed by Denso. Factbox: Toyota unveils battery, production innovations for new EVs 2023-06-13T04:00:00Z It also uses a different type of fuel that encases uranium within silicon carbide, a durable substance that can withstand extreme temperatures and is expected to make the power plant safer to operate. How the Pentagon is playing midwife to baby nuke industry 2023-05-30T04:00:00Z As promising as silicon carbide and gallium nitride are for making extraordinarily resilient electronics, they are difficult to manufacture on Earth without a lot of defects—we can make only small wafers of them here. What It Takes to Grow Crystals in Space 2023-10-23T04:00:00Z The silicon carbide chips Bosch said it will manufacture at the TSI Roseville site are increasingly in demand by electric vehicle manufacturers. Bosch buys US semiconductor foundry to expand EV chip output 2023-04-26T04:00:00Z The reduction plan was "bad news for the whole silicon carbide production chain and in particular for STMicro," Brokerage Equita said. Elon Musk's 'Master Plan' for Tesla fails to charge up investors 2023-03-02T05:00:00Z It takes around two months to create each batch of 20-40 capsules, which are made by painstakingly layering tiny diamond crystals around a silicon carbide core and polishing repeatedly. The tiny diamond sphere that could unlock clean power 2023-02-27T05:00:00Z Lee creates the volcanic effect by mixing her custom glazes with silicon carbide, which causes tiny explosions in the kiln. Moon Jars, Luminous and Graceful, Are Entrancing Modern Ceramists 2022-11-23T05:00:00Z When I first learned about a material called silicon carbide, it blew my mind. What It Takes to Grow Crystals in Space 2023-10-23T04:00:00Z The silicon carbide chemistry enables greater driving range and faster recharging, Bosch said. Bosch buys US semiconductor foundry to expand EV chip output 2023-04-26T04:00:00Z Lowe said the company already operates the world’s largest silicon carbide materials factory in Durham. North Carolina wins Wolfspeed semiconductor materials plant 2022-09-09T04:00:00Z Silicon carbide power chips have been gaining traction with electric car makers as they can handle high voltages and are more power efficient. Chip maker Wolfspeed to build new U.S. factory to meet surging EV demand 2022-09-09T04:00:00Z Before small batteries were available, carbide lamps were used for bicycle lights. Chemistry 2019-02-14T00:00:00Z So they created one out of silicon carbide, which supports the robots’ structure; electrodes made of copper and gold, which carry current; and piezoelectric ceramics, which change shape in response to an electric field. New 3-D printing technique can make autonomous robots in a single step 2022-07-08T04:00:00Z Demand for silicon carbide semiconductors is growing by 30% annually, Bosch said. Bosch buys US semiconductor foundry to expand EV chip output 2023-04-26T04:00:00Z The ring itself is made from “fighter jet” titanium and features a tungsten carbide coating for extra durability. This smart ring aims to "hack" your metabolism 2022-07-06T04:00:00Z While traditional power management chips have been made with silicon, which is also used for microchips that run computers and phones, Wolfspeed uses a relatively newer material called silicon carbide to make chips. Chip maker Wolfspeed to build new U.S. factory to meet surging EV demand 2022-09-09T04:00:00Z Currently, the same lamps are used by some cavers, and calcium carbide is used to produce acetylene for carbide cannons. Chemistry 2019-02-14T00:00:00Z While previous traction inverters had been based on silicon, the Model 3’s were made from silicon carbide, or SiC, a compound that contains both silicon and carbon. What’s Down the Road for Silicon? 2022-05-16T04:00:00Z But prosecutors said it’s a subsidiary of a foreign corporation and makes carbide products used in saw blades for the woodworking industry. Ex-CEO charged with embezzling $15M to fund lavish lifestyle 2021-12-18T05:00:00Z The Ultrahuman Ring comes in four colors and is made from titanium with a tungsten carbide coating. This smart ring aims to "hack" your metabolism 2022-07-06T04:00:00Z The silicon carbide wafers from the plant will initially be used mainly for Wolfspeed's own chip manufacturing needs. Chip maker Wolfspeed to build new U.S. factory to meet surging EV demand 2022-09-09T04:00:00Z Carborundum is silicon carbide, SiC, a very hard material used as an abrasive on sandpaper and in other applications. Chemistry 2019-02-14T00:00:00Z “We see silicon carbide as an essential material in the design of our power electronics.” What’s Down the Road for Silicon? 2022-05-16T04:00:00Z Inside those graphite spheres are thousands of poppy seed-sized uranium kernels, surrounded in thin layers of ceramic carbon and silicon carbide. Fulfilling JFK’s vision of conservation through innovation 2021-11-16T05:00:00Z A key example is the silicon carbide semiconductors found in Formula E and Extreme E cars. How high-speed electric vehicle racing is advancing tech 2021-11-11T05:00:00Z Silicon carbide power chips have been gaining traction with electric car makers as they can handle high voltages and are more power efficient. Chip maker Wolfspeed to build new U.S. factory to meet surging EV demand 2022-09-09T04:00:00Z Carbon will form an anion with a charge of 4−: C4−, a carbide ion. Chemistry 2019-02-14T00:00:00Z But in the niche of power electronics, which has sales of around $20 billion per year, silicon carbide is making significant inroads. What’s Down the Road for Silicon? 2022-05-16T04:00:00Z The idea is to start with the steel blade, which is less likely to scratch tile, then switch to the carbide blade to clean deeper and remove stubborn sections. How to repair damaged grout 2021-11-05T04:00:00Z That could bring silicon carbide to everyday EVs sooner than forecast. How high-speed electric vehicle racing is advancing tech 2021-11-11T05:00:00Z The factory, due for completion in 2030, will be the largest silicon carbide materials facility in the world, it said. Chip maker Wolfspeed to build new U.S. factory to meet surging EV demand 2022-09-09T04:00:00Z "We are continuing to expand our manufacturing capacities - for silicon as well as for the compound semiconductors silicon carbide and gallium nitride." Infineon's quarterly revenue, forecast beats on robust chip demand 2021-11-10T05:00:00Z Silicon and silicon carbide are useful in electronics because they are semiconductors: They can switch between being electrical conductors, as metals are, and insulators, as most plastics are. What’s Down the Road for Silicon? 2022-05-16T04:00:00Z Grout-cutting blades for oscillating tools come with either carbide or diamond grit and generally fit any brand of tool. How to repair damaged grout 2021-11-05T04:00:00Z Onsemi makes some of its chips from silicon carbide, a new and exotic material that is key to helping electric vehicles to get better range. Onsemi shares hit record as it doubles down on electric car chips 2021-11-01T04:00:00Z "It's actually going to enable eventually about a 13-times increase in our silicon carbide wafer making capacity," he said. Chip maker Wolfspeed to build new U.S. factory to meet surging EV demand 2022-09-09T04:00:00Z Rising orders for electric cars in Europe and elsewhere is driving up demand for STMicro's silicon carbide chips, which are designed to improve the charging capacity of batteries in electric vehicles, Chery said. STMicro expects high chip demand to extend well into 2022 2021-10-28T04:00:00Z Silicon carbide differs from silicon in that it has a wide bandgap, meaning that it requires more energy to switch between the two states. What’s Down the Road for Silicon? 2022-05-16T04:00:00Z For example, the ceramic plates fitted into body armour are becoming better, with newer versions using materials such as boron carbide. The battle to make lighter life-saving body armour 2021-10-18T04:00:00Z “By the end of ‘22, the majority of our silicon carbide revenue will be on GTAT.” Onsemi shares hit record as it doubles down on electric car chips 2021-11-01T04:00:00Z In the larger shelter, the team found artefacts which they believe were used by the hiding families, including a corroded plate, the figurine of a sheep, and traces of carbide used for lanterns. Ukrainians unearth hiding places of Jews in city sewers during Nazi Holocaust 2021-10-05T04:00:00Z Wolfspeed makes chips out of silicon carbide, which is more energy efficient than standard silicon for tasks such as transmitting power from an electric car’s batteries to the motors that turn the wheels. Chipmaker Cree changes name to Wolfspeed, strikes deal with GM on battery tech 2021-10-04T04:00:00Z Silicon carbide is the senior citizen of WBGs, having been under development as a transistor material for decades. What’s Down the Road for Silicon? 2022-05-16T04:00:00Z The machines announced on Wednesday are designed for chips made from a material called silicon carbide. Applied Materials aims to improve chip production for electric vehicles 2021-09-08T04:00:00Z To make silicon carbide chips, companies like Onsemi must use raw discs called wafers. In electric vehicle push, Onsemi to buy GT Advanced Technologies for $415 million 2021-08-25T04:00:00Z I spent a few days researching devices before settling on a porous ceramic dripper made from silicon carbide. How to make an excellent coffee pour-over and start your day right 2020-10-20T04:00:00Z But silicon carbide chips are difficult to make because the raw crystalline material has to be grown in special furnaces and processed into chips differently from standard silicon. Chipmaker Cree changes name to Wolfspeed, strikes deal with GM on battery tech 2021-10-04T04:00:00Z Even as companies upgrade to silicon carbide and gallium nitride, researchers are developing new WBG materials that could further improve power electronics. What’s Down the Road for Silicon? 2022-05-16T04:00:00Z Silicon carbide chips are difficult to manufacture because the material is very hard. Applied Materials aims to improve chip production for electric vehicles 2021-09-08T04:00:00Z Automakers are turning to chips made from silicon carbide for the drivetrains and charging systems in electric vehicles because the material is more energy-efficient than chips made from standard silicon. In electric vehicle push, Onsemi to buy GT Advanced Technologies for $415 million 2021-08-25T04:00:00Z Eventually, the silicon carbide turned into diamonds and silica. Alien planets in deep space could be made of diamonds, researchers suggest 2020-09-20T04:00:00Z Online video demonstrations of reciprocating saws show that commercially available diamond grit and tungsten carbide blades are capable of slicing through thick pieces of steel and concrete in significantly less time. Smugglers are sawing through new sections of Trump’s border wall 2019-11-01T04:00:00Z Components made from gallium oxide “can provide much lower loss” than those made from silicon, silicon carbide and gallium nitride “resulting in higher efficiency,” Dr. Higashiwaki said. What’s Down the Road for Silicon? 2022-05-16T04:00:00Z The process is difficult with silicon carbide because of the brittleness of the material. Applied Materials aims to improve chip production for electric vehicles 2021-09-08T04:00:00Z Iron bonds to arsenic and antimony, to chlorine and fluorine, to nitrogen and phosphorus, even to carbon in a variety of iron carbide minerals. Why Carbon? 2019-10-22T04:00:00Z I love the way it looks and it goes along with some other ancient mine memorabilia in my office, including a carbide lamp miner’s helmet. Sanders off the trail with heart problems 2019-10-02T04:00:00Z He held a ruler and a gold-handled instrument with an oil chamber hidden inside, tipped in a carbide wheel. Aberdeen artisan paints with glass, light 2019-06-24T04:00:00Z When Tesla released its Model 3, it had a secret technical edge over the competition: a material called silicon carbide. What’s Down the Road for Silicon? 2022-05-16T04:00:00Z We draw closer, and bodies gradually attach themselves to the lights, which are the bared flames of carbide lamps mounted on people milling around one side of the tunnel. The Invisible City Beneath Paris 2019-05-23T04:00:00Z These carbide steel spikes attach to the soles of your shoes, creating better traction and reducing your risks of falls and slips. From Salon Marketplace: These removable cleats will help you walk safer on snow 2019-01-11T05:00:00Z A hundred years ago, it would be a bustling scene lit with candles and carbide lights, as miners climbed a scaffolding the size of a seven-story building to drill out lead and silver. US West’s abandoned mines hold danger and, for some, thrills 2018-10-30T04:00:00Z For extra traction and strength, the shoes were welded with a layer of tungsten carbide, a compound twice as hard as steel that’s also used in armor-piercing ammunition. When NYPD horses lose shoes, the blacksmith comes to them 2018-07-26T04:00:00Z Silicon carbide costs much more than silicon, but many manufacturers are concluding that the benefits more than make up for the higher price. What’s Down the Road for Silicon? 2022-05-16T04:00:00Z They are standing around, smoking and talking, carbide cannisters belted at their waists, with pipes leading up to burners strapped to their heads. The Invisible City Beneath Paris 2019-05-23T04:00:00Z Features include 8 inches of length adjustability, a sweat-absorbing cork grip, padded strap, carbide and rubber tips for trail and street trekking, and a wide basket for snow trekking. Summer is calling: Fitness gear to get you outdoors – and moving 2018-07-05T04:00:00Z A fourth person said the new fund would focus on three areas: memory chips, integrated circuit design and compound semiconductors such as silicon carbide and gallium nitride. Exclusive: Chip wars - China closing in on second $19 billion... 2018-04-26T04:00:00Z At a minimum, you’ll need a drill; diamond and tungsten carbide drill bits, capable of boring into reinforced metals; an optical device called a borescope; and a stethoscope. How to Crack a Safe 2018-04-04T04:00:00Z Before the pandemic upended global trade, silicon carbide and gallium nitride were ramping up fast, and companies interested in the materials signed supply deals with producers, which moved along smoothly. What’s Down the Road for Silicon? 2022-05-16T04:00:00Z The floor is covered in small spill-heaps of gray powder: the spent waste from carbide lamps. The Invisible City Beneath Paris 2019-05-23T04:00:00Z Room-temperature quantum microwave emitters based on spin defects in silicon carbide. Continuous-wave room-temperature diamond maser 2018-03-20T04:00:00Z The statement says the company, which manufactures calcium carbide, is cooperating with authorities to determine how the accident happened. Industrial worker fatally injured in workplace accident 2018-02-15T05:00:00Z In 1 year, they increased the number of transistors on their silicon carbide chips 10-fold. Armed with tough computer chips, scientists are ready to return to the hell of Venus 2017-11-22T05:00:00Z It draws in the liquid, which then reacts to form a carbide. A new ceramic could help hypersonic planes take off 2017-08-10T04:00:00Z The 25-year-old, who is getting a doctorate in chemistry at the University of California at Berkeley, says she would prefer a lab-made diamond or moissanite, a silicon carbide gemstone that resembles a diamond. Is this the time for man-made diamonds to shine? 2017-07-21T04:00:00Z INCIDENTS: 16 reports of broken carbide rollers, one incident involving weapon discharge without trigger activation. Recalls this week: propane cylinders, glass mugs 2017-07-14T04:00:00Z Today's composites are made by layering woven mats of silicon carbide fibers and filling the space between them with a porous ceramic. Fuzzy Fibers Could Help Rockets Take the Heat 2017-07-13T04:00:00Z Because silicon carbide doesn't melt, the techniques used to produce large silicon wafers break down. Armed with tough computer chips, scientists are ready to return to the hell of Venus 2017-11-22T05:00:00Z Wielding a carbide needle, he delicately chips away bits of sediment to reveal ancient bones trapped inside. Philadelphia museum’s fossil surgeon reveals ancient past 2017-06-17T04:00:00Z The museum recently acquired a candle holder from the German trench line and a carbide lamp that burned pellets to give off light. Gautier museum educates public about World War I 2017-01-15T05:00:00Z Their bottoms are flecked with tungsten carbide studs. In icy Alaska, footwear options abound to say upright 2016-12-22T05:00:00Z Then they dipped the fibers in an ultrafine silicon powder and heated them, which converts the carbon nanotubes into silicon carbide fibers. Fuzzy Fibers Could Help Rockets Take the Heat 2017-07-13T04:00:00Z These are inculcated by a proprietary process, using silicon carbide and titanium carbide, and are precisely engineered to permit the ions’ passage. Manufacturing ultracapacitors 2016-10-13T04:00:00Z The machines are assembled under arched steel cranes and in cavernous halls that smell of carbide and ionized air. The Long Dig 2008-09-15T04:00:00Z They inserted the control rods—graphite-tipped cylinders of boron carbide that slow or stop a nuclear reaction—too far into the reactor. The Battles of Chernobyl 2016-04-26T04:00:00Z Crushing happens in giant drums equipped with tungsten carbide studs. Supermines Add to Supply Glut of Metals 2016-01-05T05:00:00Z The plants will produce silicon carbide materials used in jet engines. GE Aviation to build 2 factories in Huntsville 2015-10-27T04:00:00Z There were also unspecified amounts of calcium carbide, a highly flammable chemical that produces acetylene, which is used in welding; and sodium hydrosulfide, an extremely toxic compound used in mining. Behind Tianjin Tragedy, a Company That Flouted Regulations and Reaped Profits 2015-08-30T04:00:00Z On Aug. 21, 1945, Daghlian was stacking tungsten carbide bricks as a reflector around a plutonium core, according to a Los Alamos report on nuclear accidents. The Strange Story of the First People to Die From Nuclear Weapons During Peacetime 2015-08-21T04:00:00Z There are concerns that forecasted rain will react with calcium carbide to create an explosive and toxic gas in the air. Tianjin blasts: sodium cyanide on site may have been 70 times allowed amount 2015-08-15T04:00:00Z A variety of toxic substances were believed to be stored at the site including potassium nitrate, ammonium nitrate, calcium carbide and sodium cyanide. New fires at site of massive Chinese blasts; officials order evacuations 2015-08-15T04:00:00Z Calcium carbide is used in the production of PVC plastic, while the other two chemicals are used in producing fertiliser and dynamite. China explosions: Potent chemical mix behind Tianjin blasts - BBC News 2015-08-14T04:00:00Z Local police said the warehouse was being used to store ammonium nitrate, potassium nitrate and calcium carbide at the time of the blasts. Searching Questions Asked in Tianjin Aftermath 2015-08-14T04:00:00Z It was storing mainly ammonium nitrate, potassium nitrate and calcium carbide at the time of the blasts, according to the police. China investigates cause of blasts at Tianjin port, firms assess damage 2015-08-13T04:00:00Z The chemicals stored there include sodium cyanide, toluene diisocyanate and calcium carbide, all of which can be harmful to humans, according to the Tianjin Fire Department. 'Mama, save me, I can't bear it': A firefighter's cry in China's inferno 2015-08-13T04:00:00Z According to the Tianjin Tanggu Environmental Monitoring Station, the company stored a collection of toxic industrial chemicals, including sodium cyanide, toluene diisocyanate and calcium carbide. Tianjin Explosions Leave Warehouse District a Smoky Ruin 2015-08-13T04:00:00Z HOW: Ms. Platt starts with pieces of 1-inch rod stock, which she cuts on a band saw equipped with a blade whose carbide teeth prevent the material from melting. A Clothes Hamper You Won’t Want To Hide 2015-07-31T04:00:00Z It does not get blinded by glare, and is built of brittle silicon carbide, a gray crystal designed to withstand the extreme temperature differences of space travel, he said. For one of its developers, the New Horizons probe crosses eras on Earth 2015-07-12T04:00:00Z The business end of the device is a hefty steel wheel about three feet in diameter studded with replaceable carbide teeth. Traverse City man grinds his way to steady business 2015-06-07T04:00:00Z In power applications, CEO Chuck Swoboda said efficiencies of its silicon carbide technologies offer advantages in clean energy applications. Cree Plans To Spin-Off Its Power And RF Division To Unlock Its Full Value 2015-05-19T04:00:00Z Back then, the lamps had been carbide, he said, burning acetylene gas. A Fortune at the Top of the World 2015-04-13T04:00:00Z You’ll need a special bit that has a carbide tip on it. Ask the Builder: The beginner’s guide to electric drills They make a range of drill bits and cutting tools used in the aerospace, automobile and many other industries out of tungsten carbide - a super-hard compound of tungsten and carbon - cemented together with cobalt. The perfect metal for bullets and missiles 2014-07-11T04:00:00Z A full set 34 carbide teeth for the machine costs $350. Traverse City man grinds his way to steady business 2015-06-07T04:00:00Z “Even after all these years, you can still smell the carbide,” he said, sniffing the item. Harry Reid’s land sale to gold mine is boon for him and opportunity for Searchlight South Bend Monument uses a carbide grit to “sandblast” letters and steel shot to knock off the stone polish. Symbolism changing on cemetery monuments 2014-05-26T04:00:00Z An interesting aspect of NirSpec's design is that nearly half by weight of the instrument is made from ultra-stiff silicon carbide. 'First starlight' instrument ready 2013-09-09T07:22:11Z The TBMs have tungsten carbide cutting tools on the face that cut away the ground, with the loose earth fed back down the machine on a conveyor belt. A very big dig 2013-08-01T09:35:13Z By 12 or 13, I was blowing up things with firecrackers and calcium carbide. These Were a Few of Their Favorite Things 2012-12-24T23:34:41Z Gallium nitride, or GaN, converts electrical impulses to light and is grown on the surface of wafers made from sapphire or silicon carbide. How Silicon Will Spur A Boom In Solid-State Lighting 2012-11-23T16:42:47Z This affected how the top graphene layer was chemically joined to the underlying silicon carbide: either making a given region conducting or semiconducting, depending on the etched channels. 'Baked' graphene makes transistor 2012-07-18T07:26:31Z It is a colorless gas, with a peculiar, unpleasant odor, and is produced for use as an illuminating gas in a number of ways, but chiefly by the action of water on calcium carbide. Webster's Unabridged Dictionary 2012-03-24T02:00:23.513Z He heats silicon carbide — a compound of silicon and carbon that has been mass-produced for over a century — to 1,600°C, and the silicon atoms on top escape, leaving carbon behind. Production: Beyond sticky tape 2012-03-14T22:50:43.050Z His own trade is in rosy red apples, laced with calcium carbide. Insight: Soapy milk, toxic apples: India's sour food safety 2012-02-13T02:59:22Z Both sapphire and silicon carbide are somewhat exotic, expensive materials. How Silicon Will Spur A Boom In Solid-State Lighting 2012-11-23T16:42:47Z Gallium-nitride is manmade and not found in nature, and historically, LEDs are made by growing a gallium-nitride layer on top of a base material, which is typically sapphire or, more recently, silicon carbide. Startup Soraa Launches LED Light For Shops, Museums 2012-02-08T00:40:00Z With the exception of a few small carbide lamps attached to tent-posts, those lanterns were the only luminaries in camp. A Scout of To-day 2012-01-11T03:00:22.820Z I understand that you’re looking to explore other semiconductors besides silicon carbide. How To Make A Cheaper Quantum Computer 2011-11-23T16:13:22Z During the interview, the official also had to check with someone on the phone whether calcium carbide was legal or not. Insight: Soapy milk, toxic apples: India's sour food safety 2012-02-13T02:59:22Z So a lump of calcium carbide, with which many readers are familiar, has vast stores of heat locked up within it. Marvels of Scientific Invention An Interesting Account in Non-technical Language of the Invention of Guns, Torpedoes, Submarine Mines, Up-to-date Smelting, Freezing, Colour Photography, and many other recent Discoveries of Science 2011-11-19T03:00:24.517Z The researchers plan on moving next to examining the properties of other semiconductors to see if any improve on the workings of the silicon carbide. Cheap Quantum Computing At Room Temperatures 2011-11-04T14:12:16Z Besides these there may be corundum and carbide of silicon, arising from impurities in the materials employed. Encyclopaedia Britannica, 11th Edition, Volume 11, Slice 5 "Gassendi, Pierre" to "Geocentric" 2011-09-02T02:00:20.450Z This is exciting news, as silicon carbide is relatively cheap and is already being used in a lot of traditional computing electronics applications. How To Make A Cheaper Quantum Computer 2011-11-23T16:13:22Z Instead, they buy the fruits and later ripen them with calcium carbide, a substance colloquially known as "masala," or "spice." Insight: Soapy milk, toxic apples: India's sour food safety 2012-02-13T02:59:22Z When water comes into contact with the carbide the partnership is broken, but the heat is not liberated then, since another partnership is formed, which still retains the old heat-capital. Marvels of Scientific Invention An Interesting Account in Non-technical Language of the Invention of Guns, Torpedoes, Submarine Mines, Up-to-date Smelting, Freezing, Colour Photography, and many other recent Discoveries of Science 2011-11-19T03:00:24.517Z In a paper published in , the researchers demonstrated quantum coherence – a necessary step to computing – using imperfections contained in silicon carbide crystals. Cheap Quantum Computing At Room Temperatures 2011-11-04T14:12:16Z Aren't we just as far from a carbide shop as we are from the dynamo? The City of Numbered Days 2011-08-31T02:01:25.807Z And silicon’s silicon carbide is useful because the manufacturing infrastructure is already in place. How To Make A Cheaper Quantum Computer 2011-11-23T16:13:22Z An amorphous, soft silicon carbide, also formed in the electric furnace, was patented by B. Talbot in 1899. Encyclopaedia Britannica, 11th Edition, Volume 11, Slice 3 "Frost" to "Fyzabad" 2011-08-15T02:00:28.473Z Its flat face is equipped with 45 rotating discs, each carrying a layer of tungsten carbide, an exceptionally strong alloy that can easily break through the city’s bedrock. Deep Below Park Avenue, a Monster at Rest 2011-07-25T01:58:33Z Great attention has recently been paid to the production of acetylene gas, produced by the reaction between calcium carbide and water. Inventions in the Century 2011-07-20T02:00:14.643Z In steel when melted the carbide of iron is no doubt diffused equally throughout the liquid. Encyclopaedia Britannica, 11th Edition, Volume 10, Slice 1 "Evangelical Church Conference" to "Fairbairn, Sir William" 2011-07-16T02:00:16.387Z He had put a veranda of boughs to the front of it, and had washed the roof and walls with carbide to lessen the heat in summer. The Black Opal 2011-07-13T02:00:16.323Z The commodities at issue in the WTO case also included magnesium, manganese, silicon carbide, fluorspar, silicon carbide and yellow phosphorus, which are used by the steel, aluminum, automotive and chemicals industries. Chinese Curbs on Raw-Material Exports Break Rules, WTO Says 2011-07-05T15:26:44Z For example, in an April article in Nature, "Cleaner, greener fireworks," James Mitchell Crow reported that boron carbide may be a viable, environmentally friendlier replacement for barium-based compounds, used to make green light. What Makes Them Go Boom? Our Favorite Explainers on the Science of Fireworks 2011-06-30T21:15:00.257Z Of particular interest are those developing next-generation power semiconductors – notably those using silicon carbide, and gallium nitride rather than silicon – which will enable smart power networks the way microprocessors enabled smart communications networks. Opportunity In The Internet's Voracious Energy Appetite: The Cloud Begins with Coal (and fracking) 2011-05-31T18:40:36Z When cooled slowly some carbide separates out more or less, and the steel is soft or annealed. Encyclopaedia Britannica, 11th Edition, Volume 10, Slice 1 "Evangelical Church Conference" to "Fairbairn, Sir William" 2011-07-16T02:00:16.387Z He uses silicon carbide in his glazes, which reacts to the heat to cause his lavalike surfaces. | Westchester: Odd Textures, Elegant Poses and Math?s Golden Mean 2011-04-01T22:17:15Z The plant uses calcium carbide to produce Acetylene gas among other products, according to a company website. Explosion at chemical plant kills two workers 2011-03-22T18:30:50Z When a dentist in St. Louis needs new carbide burs, that dentist calls his Henry Schein sales rep. When You Are the Middleman, How Not to Get Cut Out 2011-02-10T09:35:00Z Of particular interest are those developing next-generation power semiconductors – notably those using silicon carbide, and gallium nitride rather than silicon – which will enable smart power networks the way microprocessors enabled smart communications networks. Opportunity In The Internet's Voracious Energy Appetite: The Cloud Begins with Coal (and fracking) 2011-05-31T18:40:36Z When chilled the carbides are retained in solid solution. Encyclopaedia Britannica, 11th Edition, Volume 10, Slice 1 "Evangelical Church Conference" to "Fairbairn, Sir William" 2011-07-16T02:00:16.387Z Their horseshoes are studded with carbide for grip on icy roads in East Haddam, Conn., where they usually do weddings; Mr. Jacobson was anxious they would scuff the far fancier ballroom floor. City Room: How the Horses Got to the Ball 2011-02-05T16:04:14Z The fatal explosion, involving calcium carbide, occurred Monday evening at the Carbide Industries plant in Louisville's Rubbertown district, a heavily industrial area with 10 other chemical plants near the Ohio River, authorities said. Explosion at chemical plant kills two workers 2011-03-22T18:30:50Z The arc furnaces now widely used in the manufacture of calcium carbide on a large scale are chiefly developments of the Siemens furnace. Encyclopaedia Britannica, 11th Edition, Volume 9, Slice 2 "Ehud" to "Electroscope" 2011-01-29T03:00:23.777Z Surrounded by a collection of antique mining lanterns, including the carbide lamp that saved his life in 1949, he says he is leading explorations in five South American countries, including Paraguay. Legendary U.S. Copper Prospector Has China as Biggest Customer 2010-11-04T23:08:00Z Its hammers are made of diamonds, tungsten carbide and other alloys. Breakthrough raises hopes of early rescue for Chilean miners 2010-09-18T12:19:00Z Its hammers are made of of diamonds, tungsten carbide and other alloys. Big Step Completed in Chile Miners' Escape Route 2010-09-17T23:07:00Z A great deal of heat is developed on adding water to calcium carbide, so that care has to be taken in generating acetylene. The New Gresham Encyclopedia. Vol. 1 Part 1 A to Amide The production of aluminium in Switzerland and Scotland, carborundum and calcium carbide in the United States, and soda by the Castner-Kellner process, began to be conducted on an immense scale. Encyclopaedia Britannica, 11th Edition, Volume 9, Slice 2 "Ehud" to "Electroscope" 2011-01-29T03:00:23.777Z A mile underground, the waning light from the flame in his carbide lamp signaled a life- threatening shortage of oxygen, he says. Legendary U.S. Copper Prospector Has China as Biggest Customer 2010-11-04T23:08:00Z The carbide having been placed in the receptacles, these should be closed by means of the loose flap and the whole pushed into the bell and secured. Optical Projection Part 1: Projection of Lantern Slides As the temperature cooled, and the water vapour became condensed, it entered into chemical combination with the various rocks, producing organic compounds like acetylene, which results from the action of water on calcium carbide. The Mechanism of Life It is formed in the incomplete combustion of many hydrocarbons and also of coal-gas, and may be produced in a variety of ways, but is now made almost entirely from calcium carbide. The New Gresham Encyclopedia. Vol. 1 Part 1 A to Amide There is a third class of operations, exemplified by the manufacture of calcium carbide, in which electricity is employed solely as a heating agent; these are termed electrothermal, as distinguished from electrolytic. Encyclopaedia Britannica, 11th Edition, Volume 9, Slice 2 "Ehud" to "Electroscope" 2011-01-29T03:00:23.777Z There was food, rope, and candles, another tube of carbide for Radcliffe’s lamp, a box of matches in a tight lidded tin, and even a short length of rustic ladder made for the occasion. Unexplored! Acetylene gas is formed, as is well known, by the action of water upon carbide of calcium, and the generators constructed for lantern work are essentially the same in construction as for other purposes. Optical Projection Part 1: Projection of Lantern Slides Nitrates of cerium have been described, as have also phosphates, carbonates and a carbide. Encyclopaedia Britannica, 11th Edition, Volume 5, Slice 7 "Cerargyrite" to "Charing Cross" Methane is yielded by aluminium and beryllium carbides, and, mixed with hydrogen, by manganese carbide. Encyclopaedia Britannica, 11th Edition, Volume 5, Slice 3 "Capefigue" to "Carneades" Other authors have sought the origin of the diamond in the action of the hydrated magnesian silicates on hydrocarbons derived from bituminous schists, or in the decomposition of metallic carbides. Encyclopaedia Britannica, 11th Edition, Volume 8, Slice 4 "Diameter" to "Dinarchus" The carved prisms shone dazzlingly in the light of the carbide lamp, and the boys stuffed their pockets with some of the jewel-like bits that had fallen to the floor. Unexplored! The carbide container is fitted with a series of shelves, and the contents of a 2 lb. tin of carbide should be roughly divided among them; there is no need to make any accurate division. Optical Projection Part 1: Projection of Lantern Slides These lamps are like little coffee-pots and are filled either with carbide or seal oil. Seeds of Pine The important carbides are mentioned in the separate articles on the various metals. Encyclopaedia Britannica, 11th Edition, Volume 5, Slice 3 "Capefigue" to "Carneades" There are cement factories in the town, and calcium carbide is an important article of export. Encyclopaedia Britannica, 11th Edition, Volume 6, Slice 4 "Cincinnatus" to "Cleruchy" There were also the boys’ sweaters,—Radcliffe, of course, had his woolen uniform,—and to cap the climax, a ball of twine and the Ranger’s pet lamp, with its tin of carbide powder. Unexplored! Petroleum oil is estimated to supply power at just one-third the price of acetylene gas made with calcium carbide at a price of £20 per ton. Twentieth Century Inventions A Forecast The difference is that, in this case, the stronger fibers are borazon—boron nitride formed under tremendous pressure—while the softer matrix is composed of tungsten carbide. Thin Edge The introduction of the electric furnace into practical chemistry was followed by the preparation of many metallic carbides previously unknown, some of which, especially calcium carbide, are now of great commercial importance. Encyclopaedia Britannica, 11th Edition, Volume 5, Slice 3 "Capefigue" to "Carneades" He lit the carbide lamp over the panel. The Barbarians With the suddenness of events in a dream, they came into a vast chamber that at first 135glimpse, lighted as it was by the carbide lamp, gave the impression of a baronial ruin. Unexplored! This calculation was drawn up before the occurrence of the material rise in the price of "petrol" in the last year of the nineteenth century; while, concurrently, the price of calcium carbide was falling. Twentieth Century Inventions A Forecast Get a bite of something to eat, for you must surely want it; buy what you want for the car—oil, carbide, and the rest, and get away to meet the pretty Pierrette. The Count's Chauffeur The metallic carbides are crystalline solids, the greater number being decomposed by water into a metallic hydrate and a hydrocarbon; sometimes hydrogen is also evolved. Encyclopaedia Britannica, 11th Edition, Volume 5, Slice 3 "Capefigue" to "Carneades" It searched and prodded about the deserted deck to whip upward at the audible hiss of wet carbide. Astounding Stories of Super-Science, June, 1930 It weighs only five ounces when full; is charged with carbide and is but 4-3/4 inches high. Boy Scouts Handbook The First Edition, 1911 Calcium carbide, by means of which acetylene gas is obtained as a product from water, becomes in this view stored power. Twentieth Century Inventions A Forecast He'd feel them running over him, even when he'd spent an hour picking the bed clean of them by the light of the carbide lantern. Happy Ending Calcium carbide owes its industrial importance to its decomposition into acetylene; lithium carbide behaves similarly. Encyclopaedia Britannica, 11th Edition, Volume 5, Slice 3 "Capefigue" to "Carneades" Another ignited a searing flame of acetlylene gas where a wet arm writhed in the hot carbide trail. Astounding Stories of Super-Science, June, 1930 The carbide in his lamps was exhausted and the feeble beam that leaped up with the jolts flickered puzzlingly. Partners of the Out-Trail But it seems exceedingly probable that a compromise will ultimately be effected between the methods adopted for making water-gas and calcium carbide respectively, the electric current being employed to keep the carbons incandescent. Twentieth Century Inventions A Forecast In the late evening Slip lighted a big carbide light and turned it toward the town on the opposite bank. The River Prophet The commercial aspect of calcium carbide is treated in the article Acetylene. Encyclopaedia Britannica, 11th Edition, Volume 5, Slice 3 "Capefigue" to "Carneades" The gray, earthly lumps of carbide formed erratic lines. Astounding Stories of Super-Science, June, 1930 Iron carbide is magnetic, and significance has been attached to the general correspondence between the locations of oil in the western United States and regions of magnetic disturbance. The Economic Aspect of Geology The world learned one morning of a new gas called acetylene, clear, brilliant, cheap, and simply made from calcium carbide. Frenzied Finance Vol. 1: The Crime of Amalgamated "Here, give the lamp to me," said the launch owner, and taking the lamp he shook it and tried to turn more water on the carbide. The Rover Boys in Southern Waters or The Deserted Steam Yacht To-day the mines of Algoma are supplying steel rails for Asiatic railways; the forests about St. Marys are yielding pulp for Australia, and the great power house is sending carbide to the mines of India. The Rapids Calcium carbide—for making acetylene, he supposed—marked "Made in U.S.A." Astounding Stories of Super-Science, June, 1930 The biting cold wind made work difficult, and we had to warm up frequently in our living room, where we had a good fire in an improvised stove made of a large carbide can. The Early History of the Airplane Each of them contains from � lb. to 4.5 lb. of carbide. Scientific American Supplement, No. 1082, September 26, 1896 In fact, diny teeth, being organic, seemed to be an especially hard form of boron carbide. Attention Saint Patrick He had no lights as his store of carbide was finished. Witch-Doctors A mixture of coal and lime is fed into the furnace through the trap top C, and in the lower part of the furnace this mixture becomes intensely heated, forming liquid carbide. An Elementary Study of Chemistry If vanadium contained is considerable it also combines with the carbon, forming carbides. The Working of Steel Annealing, Heat Treating and Hardening of Carbon and Alloy Steel Mr. Dickerson rightly remarks that it is disadvantageous to directly control the distribution of the water upon the carbide by means of the holder of the gasometer. Scientific American Supplement, No. 1082, September 26, 1896 There Harry stood in silent contemplation for a long time, holding his carbide over the pile of ore that had been torn from the vein above. The Cross-Cut Acetylene, generated from calcium carbide inside the buoy, is also used. Encyclopaedia Britannica, 11th Edition, Volume 4, Part 4 "Bulgaria" to "Calgary" Write the equation for the reaction between calcium carbide and water. An Elementary Study of Chemistry This is true of all alloys which contain complex carbides, i.e., compounds of carbon, iron and one or more elements. The Working of Steel Annealing, Heat Treating and Hardening of Carbon and Alloy Steel It is only when the holder descends anew to the position, 1, that the water in the chamber, 7, 8, can fall upon the carbide. Scientific American Supplement, No. 1082, September 26, 1896 The carbide lamps were held close to the fuses for a second. The Cross-Cut A faint smell of acetylene may be perceived during the oxidation in moist air; this is probably due to traces of calcium carbide. Encyclopaedia Britannica, 11th Edition, Volume 4, Part 4 "Bulgaria" to "Calgary" The inner tube contains fragments of calcium carbide, while the outer one is filled with water. An Elementary Study of Chemistry According to Guillet, the absorption of carbon is favored by those special elements which exist as double carbides in steel. The Working of Steel Annealing, Heat Treating and Hardening of Carbon and Alloy Steel It is necessary in this case that the carbide shall have been previously reduced to powder. Scientific American Supplement, No. 1082, September 26, 1896 She came a little closer to him then and looked up at him with trustful eyes, all the brighter in the spluttering light of the carbide. The Cross-Cut Acetylene gas, as generally used, is generated by bringing water in contact with the calcium carbide. The Great Round World and What Is Going On In It, Vol. 2, No. 5, February 3, 1898 A Weekly Magazine for Boys and Girls The pure carbide is a colorless, transparent, crystalline substance. An Elementary Study of Chemistry The massive carbides and tungstides present in the ingot are broken down and uniformly distributed throughout the billet. The Working of Steel Annealing, Heat Treating and Hardening of Carbon and Alloy Steel When the carbide of the first compartment is exhausted, the water enters the second, and so on. Scientific American Supplement, No. 1082, September 26, 1896 The drift was crowded with persons bearing candles and carbides. The Cross-Cut He would use the electrical energy on the Dortmund and Emshaven Canal, and for the manufacture of calcium carbide. Scientific American Supplement, No. 1178, June 25, 1898 On the supposition that calcium carbide costs 12 cents a kilogram, what would be the cost of an amount sufficient to generate 100 l. of acetylene measured at 20° and 740 mm.? An Elementary Study of Chemistry The great hardness of chromium steels is also due to the formation of double carbides of chromium and iron. The Working of Steel Annealing, Heat Treating and Hardening of Carbon and Alloy Steel The carbide falls into the generator, the bottom of which is open. Scientific American Supplement, No. 1082, September 26, 1896 Harry once more brought out his carbide to light it for a moment and to examine the timbering. The Cross-Cut The simplicity of the manufacture of acetylene from calcium carbide and water gives to this gas a great advantage in some cases. Artificial Light Its Influence upon Civilization When the stopcock is open the water rises, and, coming into contact with the carbide in the inner tube, generates acetylene. An Elementary Study of Chemistry It is possible that complex carbides may be formed, as in chromium steels, and that compounds between iron and tungsten exist. The Working of Steel Annealing, Heat Treating and Hardening of Carbon and Alloy Steel It carries a suspended open work basket containing the carbide of calcium. Scientific American Supplement, No. 1082, September 26, 1896 Harry unhooked his carbide from his belt, lit it and looked around. The Cross-Cut If there are impurities in the calcium carbide, it is sometimes necessary to purify the gas before it may be safely used for interior lighting. Artificial Light Its Influence upon Civilization It is not acted on at ordinary temperatures by most reagents, but at a higher temperature it combines directly with many of the elements, forming compounds called carbides. An Elementary Study of Chemistry It is a well-known fact that the element chromium, when in the form of chromium carbide in alloy steel, offers the greatest resistance to wear of any combination yet developed. The Working of Steel Annealing, Heat Treating and Hardening of Carbon and Alloy Steel The latter is brought to a level in the two vessels and attacks the carbide. Scientific American Supplement, No. 1082, September 26, 1896 With that, carbide pointing the way, he turned back, pushing the tram before him. The Cross-Cut The chief source of calcium carbide in this country is the electric furnace. Artificial Light Its Influence upon Civilization He also made the carbides of the various metals, including the now common calcium carbide. Creative Chemistry Descriptive of Recent Achievements in the Chemical Industries But we may anticipate by saying that some of the iron unites with all the carbon to form a new substance, very hard, a carbide which has been called "cementite." The Working of Steel Annealing, Heat Treating and Hardening of Carbon and Alloy Steel At the same time, the excess of pressure forces back the water into the external vessel in suppressing its contact with the carbide. Scientific American Supplement, No. 1082, September 26, 1896 Harry's carbide pointing the way through the blind door and into the main tunnel. The Cross-Cut The cheapness of calcium carbide is due to the development of cheap electric power. Artificial Light Its Influence upon Civilization This requires electrical power since it starts with a product of the electrical furnace, calcium carbide, familiar to us all as a source of acetylene gas. Creative Chemistry Descriptive of Recent Achievements in the Chemical Industries Many of the properties of steel, as they vary with carbon content, can be linked up with the increasing amount of this hard carbide cementite, distributed in very fine particles through the softer iron. The Working of Steel Annealing, Heat Treating and Hardening of Carbon and Alloy Steel Mr. Trouv� has endeavored to remedy this inconvenience by arranging the pieces of carbide in the basket in distinct layers separated by disks of glass. Scientific American Supplement, No. 1082, September 26, 1896 An electric flashlight suddenly flared against the gleam of the carbide. The Cross-Cut It is said that calcium carbide was discovered as a by-product of the electric furnace by accidentally throwing water upon the waste materials of a furnace process. Artificial Light Its Influence upon Civilization The cyanamid is completely and quickly converted into pure ammonia and calcium carbonate, which is the same as the limestone from which carbide was made. Creative Chemistry Descriptive of Recent Achievements in the Chemical Industries For example, manganese exists as manganese carbide in combination with the iron carbide. The Working of Steel Annealing, Heat Treating and Hardening of Carbon and Alloy Steel The layer of carbide serves to dry it. Scientific American Supplement, No. 1082, September 26, 1896 Fairchild turned at the entrance of the mine and waited for the first of the miners and the accompanying gleam of his carbide. The Cross-Cut The discovery of a commercial scale of manufacture of calcium carbide has been a boon to isolated lighting. Artificial Light Its Influence upon Civilization The steel cylinders standing in the background are packed with the carbide and then put into the ovens sunk in the floor. Creative Chemistry Descriptive of Recent Achievements in the Chemical Industries The treatment is more delicate, due to the higher percentage of carbon and the natural increase in cementite together with complex carbides which are present in some of the higher types of alloys. The Working of Steel Annealing, Heat Treating and Hardening of Carbon and Alloy Steel The quantity of carbide necessary to fill the gasometer is introduced into the basket. Scientific American Supplement, No. 1082, September 26, 1896 And—" Bittson picked up a few samples, examined them by the light of the carbides and tossed them away—"you can see the silver sticking out. The Cross-Cut In one type, a mixture-tank containing calcium carbide and water is of sufficient capacity for three hours of signaling. Artificial Light Its Influence upon Civilization When these are heated internally by electricity to 2000 degrees Fahrenheit pure nitrogen is let in and absorbed by the carbide, making cyanamid, which may be used as a fertilizer or for ammonia. Creative Chemistry Descriptive of Recent Achievements in the Chemical Industries But it has been already proved that acetylene may be polymerized, so as to produce aromatic carbides, or the derivatives of marsh gas, by the absorption of hydrogen. Scientific American Supplement, No. 443, June 28, 1884 In 1892 it was discovered that lime and coal fused together in the intense heat of the electric furnace formed a crystalline, metallic-looking substance called calcium carbide. General Science A moment more and he had reached the bottom, to leap from the carrier, light his carbide lamp which hung where he had left it on the timbers, and start forward. The Cross-Cut Another disadvantage is the possibility of calcium carbide accidentally spilt coming in contact with water and thereby causing the generation of acetylene gas. Artificial Light Its Influence upon Civilization For calcium carbide is convenient and portable and acetylene, when it is once started, as by an electric shock, decomposes spontaneously by its own internal heat into hydrogen and carbon. Creative Chemistry Descriptive of Recent Achievements in the Chemical Industries It weighs only five ounces when fully charged with carbide, and is but 4-3/4 inches high. Camping For Boys When the hard, gray crystals of calcium carbide are put in water, they give off acetylene, a colorless gas which burns with a brilliant white flame. General Science Fairchild rushed within, held high his carbide and looked about him. The Cross-Cut Acetylene, which is so simply made by means of calcium carbide and water, has been a great factor in lighting for navigation. Artificial Light Its Influence upon Civilization As the stream of nitrogen gas passes over the finely divided carbide it is absorbed to form calcium cyanamid as described on a previous page. Creative Chemistry Descriptive of Recent Achievements in the Chemical Industries For the tank one may select a discarded 1 lb. carbide tin. Things To Make When chemical action between the water and carbide has ceased, and gas bubbles have stopped forming, slaked lime is all that is left of the dark gray crystals which were put into the water. General Science He reached for his carbide lamp, hooked to a small chink of the hanging wall, and then pulled his hat over his bulging forehead. The Cross-Cut Daly's driver was refilling the lamps with carbide, and when he finished asked for petrol. Carmen's Messenger This product is cooled, powdered and wet to destroy any quicklime or carbide left unchanged. Creative Chemistry Descriptive of Recent Achievements in the Chemical Industries Exposed to heat it loses three eq. of water, and becomes anhydrous; at a high temperature it yields cyanide of potassium, carbide of iron, and various gases. Scientific American Supplement, No. 483, April 4, 1885 In a house in which there were twenty burners, the tanks were filled with water and carbide but once a fortnight. General Science Harry's carbide went high in the air, and he slid forward, to stand a moment in thought before the obstacle. The Cross-Cut The carbide should be put in small containers, for each time a box is opened some of the contents turns into gas from contact with the moist air. Through the Brazilian Wilderness Or, to put it briefly, CaO + 3C → CaC2 + CO lime coke calcium carbon carbide monoxide This reaction is of peculiar importance because it bridges the gulf between the organic and inorganic worlds. Creative Chemistry Descriptive of Recent Achievements in the Chemical Industries Other details as to the carbide consumed in making acetylene gas may be briefly quoted. Scott's Last Expedition Volume I When nitrogen gas is in contact with heated calcium carbide, a reaction takes place which results in the formation of calcium nitride, a compound suitable for enriching the soil. General Science Fairchild could see a mass of shadows outlined by the carbides, all following the leadership of a small, excited man, Sam Herbenfelder, still seeking his diamond. The Cross-Cut It has been found that for equal weight the carbide will give more light than kerosene or candle. Through the Brazilian Wilderness The calcium carbide that he manufactures from inorganic material serves as the raw material for producing all sorts of organic compounds. Creative Chemistry Descriptive of Recent Achievements in the Chemical Industries The best forms of generator are either those in which water rises slowly in contact with the carbide, or the second main division in which the carbide falls into excess of water. The Project Gutenberg Encyclopedia Volume 1 of 28 This spectrum, which has been recognized along with that of hydrogen in the light of the tails of comets, indicates a carbide, probably acetylene. Scientific American Supplement, No. 385, May 19, 1883 Under the rays of the carbides, they could see that the track here was in fairly good condition; the only moisture being that of a natural seepage which counted for little. The Cross-Cut "I brought some carbide along, so we can easily start a blaze," added Whopper. Guns and Snowshoes Or, the Winter Outing of the Young Hunters Acetylene is not always acted upon by water, as we know, for we see it bubbling up through the water when prepared from the carbide. Creative Chemistry Descriptive of Recent Achievements in the Chemical Industries The two principal processes utilized in making calcium carbide by electrical power are the ingot process and the tapping process. The Project Gutenberg Encyclopedia Volume 1 of 28 When acetylene is employed, the yield is pure carbon, for the only by-product is water vapour; but if the carbide process is adopted, the carbon remains mixed with calcium oxide. Acetylene, the Principles of Its Generation and Use A Practical Handbook on the Production, Purification, and Subsequent Treatment of Acetylene for the Development of Light, Heat, and Power "Nobody 'as to tell it—" Harry was staring at his carbide flare—"there 's a wye." The Cross-Cut "As soon as the snow melts it turns to water, and the water, soaking the carbide, generates acetylene gas, which burns about the same as gas in a city." Guns and Snowshoes Or, the Winter Outing of the Young Hunters With this crude apparatus and with no greater electromotive force than could be attained from a voltaic pile, he converted charcoal into graphite, volatilized phosphorus from its compounds, isolated metallic calcium and synthesized calcium carbide. Creative Chemistry Descriptive of Recent Achievements in the Chemical Industries The presence of free hydrogen is nearly always accompanied by silicon hydride formed by the combination of the nascent hydrogen with the silicon in the carbide. The Project Gutenberg Encyclopedia Volume 1 of 28 The outside of the delivery mouth is finished by a drip collar with double lip to prevent condensed moisture creeping upwards to the carbide in the hopper. Acetylene, the Principles of Its Generation and Use A Practical Handbook on the Production, Purification, and Subsequent Treatment of Acetylene for the Development of Light, Heat, and Power Several hours passed, then Harry returned, minus his gorgeous clothing and his diamond ring, dressed in mining costume now, with high leather boots into which his trousers were tucked, and carrying a carbide lantern. The Cross-Cut The wood was heaped up and then, in a hollow in the snow underneath, Shep dumped out some of the carbide from the can. Guns and Snowshoes Or, the Winter Outing of the Young Hunters These heated together in the electric furnace form calcium carbide and this, as every automobilist knows, gives acetylene by contact with water. Creative Chemistry Descriptive of Recent Achievements in the Chemical Industries Another set merely aims at developing the gas from the carbide and putting it into a storageholder with as little loss as possible, and these are termed ``non-automatic.'' The Project Gutenberg Encyclopedia Volume 1 of 28 There is inserted in each cylinder a cylindrical trough, divided into ten compartments, each of which contains carbide. Acetylene, the Principles of Its Generation and Use A Practical Handbook on the Production, Purification, and Subsequent Treatment of Acetylene for the Development of Light, Heat, and Power Before him the drift tunnel, damp and dripping and dark, awaited, seeming to throw back the flare of the carbides as though to shield the treasures which might lie beyond. The Cross-Cut The Union Carbide Company of Chicago and New York, operating under patents, manufactures and distributes the supply of calcium carbide for the entire United States. Oxy-Acetylene Welding and Cutting Electric, Forge and Thermit Welding together with related methods and materials used in metal working and the oxygen process for removal of carbon Then wheeling his machine out into the road he took a last look at the lantern, to see that the water might not be dripping on the carbide too rapidly to combine the greatest efficiency. The Aeroplane Boys on the Wing Aeroplane Chums in the Tropics This compound was afterwards fully investigated by J. J. Berzelius, who showed it to be potassium carbide. The Project Gutenberg Encyclopedia Volume 1 of 28 The generator A is provided with a carbide container with perforated base, and water is supplied to it from a delivery-pipe through a scaled overflow. Acetylene, the Principles of Its Generation and Use A Practical Handbook on the Production, Purification, and Subsequent Treatment of Acetylene for the Development of Light, Heat, and Power Harry started forward a step, then pausing, shifted his carbide and laid a hand on his companion's shoulder. The Cross-Cut Absolute purity cannot be attained commercially, and in practice good carbide will produce from four and one-half to five cubic feet for each pound used. Oxy-Acetylene Welding and Cutting Electric, Forge and Thermit Welding together with related methods and materials used in metal working and the oxygen process for removal of carbon Some of the more important consumers of the electric power, named in the order of consumption, are for the manufacture of the following products: calcium carbide, aluminium, caustic soda and bleaching salt, carborundum, and graphite. Beacon Lights of History, Volume 14 The New Era; A Supplementary Volume, by Recent Writers, as Set Forth in the Preface and Table of Contents He also made the corresponding sodium compound and showed that it evolved the same gas, whilst in 1862 F. Wohler first made calcium carbide, and found that water decomposed it into lime and acetylene. The Project Gutenberg Encyclopedia Volume 1 of 28 Whether the mixture will prove cheaper under particular conditions must depend on the relative prices of gas-oil and calcium carbide at the works where the gas is made and compressed. Acetylene, the Principles of Its Generation and Use A Practical Handbook on the Production, Purification, and Subsequent Treatment of Acetylene for the Development of Light, Heat, and Power The older man took a portion of the blackish, gritty mass and held it close to his carbide. The Cross-Cut Calcium carbide is a chemical combination of the elements carbon and calcium, being dark brown, black or gray with sometimes a blue or red tinge. Oxy-Acetylene Welding and Cutting Electric, Forge and Thermit Welding together with related methods and materials used in metal working and the oxygen process for removal of carbon Carborundum is a crystalline silicon carbide formed in the electric furnace. The Radio Amateur's Hand Book In the manufacture of calcium carbide in the electric furnace, lime and anthracite of the highest possible degree of purity are employed. The Project Gutenberg Encyclopedia Volume 1 of 28 The carbide falls from the funnel into the chamber D when the chain is pulled. Acetylene, the Principles of Its Generation and Use A Practical Handbook on the Production, Purification, and Subsequent Treatment of Acetylene for the Development of Light, Heat, and Power Another device, in which an empty carbide tin was employed, and still another, making use of an old propeller, shared the same fate. The Home of the Blizzard Being the Story of the Australasian Antarctic Expedition, 1911-1914 Calcium carbide may be preserved for any length of time if protected from the air, but the ordinary moisture in the atmosphere gradually affects it until nothing remains but slaked lime. Oxy-Acetylene Welding and Cutting Electric, Forge and Thermit Welding together with related methods and materials used in metal working and the oxygen process for removal of carbon We finally managed to light a flare of carbide, and the ship came down to us in a blizzard, and all were safely aboard at 1 a.m. on March 4, 1909. South: the story of Shackleton's 1914-1917 expedition About 1.8 lb. of this is used up for each pound of carbide produced. The Project Gutenberg Encyclopedia Volume 1 of 28 A fresh charge of carbide may be put in while the apparatus is in action. Acetylene, the Principles of Its Generation and Use A Practical Handbook on the Production, Purification, and Subsequent Treatment of Acetylene for the Development of Light, Heat, and Power The one marking the carbide was blown away, and it was two days before Dovers finally unearthed it. The Home of the Blizzard Being the Story of the Australasian Antarctic Expedition, 1911-1914 It always possesses a penetrating odor, which is not due to the carbide itself but to the fact that it is being constantly affected by moisture and producing small quantities of acetylene gas. Oxy-Acetylene Welding and Cutting Electric, Forge and Thermit Welding together with related methods and materials used in metal working and the oxygen process for removal of carbon Into the cans were put certain chemicals that generated a gas which, when lighted, gave a brilliant glow, almost like calcium carbide. Tom Swift in the City of Gold, or, Marvelous Adventures Underground In breaking up and sending out the carbide for commercial work, packed in air-tight drums, the crust is removed by a sand blast. The Project Gutenberg Encyclopedia Volume 1 of 28 Each generating chamber consists of a frame in which are arranged about a central tube trays half filled with carbide, having water inlet-holes at several different levels, and each divided into two compartments. Acetylene, the Principles of Its Generation and Use A Practical Handbook on the Production, Purification, and Subsequent Treatment of Acetylene for the Development of Light, Heat, and Power Another portion of the power is to be used to produce carbide of calcium for the manufacture of acetylene gas. The Story of Electricity A less used type brings a measured and small quantity of water to a comparatively large body of the carbide, the gas being formed and collected from the chamber in which the action takes place. Oxy-Acetylene Welding and Cutting Electric, Forge and Thermit Welding together with related methods and materials used in metal working and the oxygen process for removal of carbon Another valuable product of the electric furnace was the calcium carbide first produced in 1892 by Thomas L. Wilson of Spray, North Carolina. The Age of Invention : a chronicle of mechanical conquest The carbide is heated to complete liquefaction and tapped at short intervals. The Project Gutenberg Encyclopedia Volume 1 of 28 The movable carbide chamber D has its upper perforated part half filled with carbide, which is pressed upwards by a spring D'. Acetylene, the Principles of Its Generation and Use A Practical Handbook on the Production, Purification, and Subsequent Treatment of Acetylene for the Development of Light, Heat, and Power In more recent work the carbide containing the silicon has been done away with and ordinary anthracite coal used as a charge from which the pure graphite is obtained. The Story of Electricity Another way of expressing the difference in feed is that of designating the two types as "carbide feed" for the former and "water feed" for the latter. Oxy-Acetylene Welding and Cutting Electric, Forge and Thermit Welding together with related methods and materials used in metal working and the oxygen process for removal of carbon This calcium carbide is the basis of acetylene gas, a powerful illuminant, and it is widely used in metallurgy, for welding and other purposes. The Age of Invention : a chronicle of mechanical conquest Calcium carbide, as formed in the electric furnace, is a beautiful crystalline semi-metallic solid, having a density of 2.22, and showing a fracture which is often shot with iridescent colours. The Project Gutenberg Encyclopedia Volume 1 of 28 When it exists in the gas the silicon is derived from certain silicides in the carbide; but this impurity will be dealt with by itself in a later paragraph. Acetylene, the Principles of Its Generation and Use A Practical Handbook on the Production, Purification, and Subsequent Treatment of Acetylene for the Development of Light, Heat, and Power The process involves merely a transformation at a high temperature, a portion of the carbon in the form of coke, uniting with pulverized lime to give the calcium carbide or CaC2. The Story of Electricity The action of either feed is controlled by the withdrawal of gas from the generator, the aim being to supply sufficient carbide to maintain a nearly constant supply. Oxy-Acetylene Welding and Cutting Electric, Forge and Thermit Welding together with related methods and materials used in metal working and the oxygen process for removal of carbon You know what happens when water gets on carbide—there's an explosion, and there's enough carbide in that shed to send the whole works sky high. Tom Swift and His Aerial Warship, or, the Naval Terror of the Seas The ammonia found in the acetylene is probably partly due to the presence of magnesium nitride in the carbide. The Project Gutenberg Encyclopedia Volume 1 of 28 The feeding mechanism permits the discharge of lump carbide, and the weight motor affords independent power for feeding the carbide, at the same time indicating the amount of unconsumed carbide and securing uniform gas pressure. Acetylene, the Principles of Its Generation and Use A Practical Handbook on the Production, Purification, and Subsequent Treatment of Acetylene for the Development of Light, Heat, and Power Thus when calcium carbide is heated and brought into contact with nitrogen one atom of carbon is given up and two atoms of nitrogen take its place, resulting in the production of cyanamide. The Story of Electricity Overheating.—A large amount of heat is liberated when acetylene gas is formed from the union of calcium carbide and water. Oxy-Acetylene Welding and Cutting Electric, Forge and Thermit Welding together with related methods and materials used in metal working and the oxygen process for removal of carbon In lamps, of course, and in lighting plants where carbide is used, there are automatic arrangements to prevent the water flowing too freely to the chemical. Tom Swift and His Aerial Warship, or, the Naval Terror of the Seas On decomposition by water, ammonia is produced by the action of steam or of nascent hydrogen on the nitride, the quantity formed depending very largely upon the temperature at which the carbide is decomposed. The Project Gutenberg Encyclopedia Volume 1 of 28 The carbide is fed from the hopper into the generating tank through a mechanism consisting of a double oscillating cup so weighted that normally the feed is closed. Acetylene, the Principles of Its Generation and Use A Practical Handbook on the Production, Purification, and Subsequent Treatment of Acetylene for the Development of Light, Heat, and Power The object of using this treated carbide is to avoid the effects of the attack of atmospheric humidity or water vapour, which, with ordinary carbide, give rise to the phenomena of after-generation. Acetylene, the Principles of Its Generation and Use A Practical Handbook on the Production, Purification, and Subsequent Treatment of Acetylene for the Development of Light, Heat, and Power The generating chamber must be filled with the proper amount of water before any attempt is made to place the carbide in its holder. Oxy-Acetylene Welding and Cutting Electric, Forge and Thermit Welding together with related methods and materials used in metal working and the oxygen process for removal of carbon He knew the fire would be practically unquenchable by ordinary means, and he counted on its soon eating its way into the carbide and other explosives. Tom Swift and His Aerial Warship, or, the Naval Terror of the Seas In the early samples of carbide this compound used to be present in considerable quantity, but now rarely more than 1/10 % is to be found. The Project Gutenberg Encyclopedia Volume 1 of 28 Provision is made for a limited hand-feed of carbide to start the apparatus. Acetylene, the Principles of Its Generation and Use A Practical Handbook on the Production, Purification, and Subsequent Treatment of Acetylene for the Development of Light, Heat, and Power A charge of carbide is then tipped into the funnel and drops into the water in the generating tank. Acetylene, the Principles of Its Generation and Use A Practical Handbook on the Production, Purification, and Subsequent Treatment of Acetylene for the Development of Light, Heat, and Power Never recharge with carbide without first cleaning the generating chamber and completely refilling with clean water. Oxy-Acetylene Welding and Cutting Electric, Forge and Thermit Welding together with related methods and materials used in metal working and the oxygen process for removal of carbon There's a lot of calcium carbide in that red shed—that's why it's red—to warn the men of danger. Tom Swift and His Aerial Warship, or, the Naval Terror of the Seas These compartments are fitted with flap bottoms secured by catches, and are charged with carbide. Acetylene, the Principles of Its Generation and Use A Practical Handbook on the Production, Purification, and Subsequent Treatment of Acetylene for the Development of Light, Heat, and Power The generating apparatus made by this firm uses, instead of ordinary carbide, a preparation known as "acétylithe," which is carbide treated specially with mineral oil, glucose and sugar. Acetylene, the Principles of Its Generation and Use A Practical Handbook on the Production, Purification, and Subsequent Treatment of Acetylene for the Development of Light, Heat, and Power The sludge, which has accumulated in the base N of the generator from the decomposition of the previous portion of carbide, is thereby discharged automatically into a special drain. Acetylene, the Principles of Its Generation and Use A Practical Handbook on the Production, Purification, and Subsequent Treatment of Acetylene for the Development of Light, Heat, and Power Purification of Acetylene.—Impurities in this gas are caused by impurities in the calcium carbide from which it is made or by improper methods and lack of care in generation. Oxy-Acetylene Welding and Cutting Electric, Forge and Thermit Welding together with related methods and materials used in metal working and the oxygen process for removal of carbon "I don't know—yet, but I know water is the worst thing you can put on carbide," returned Tom. Tom Swift and His Aerial Warship, or, the Naval Terror of the Seas The generating plant made by this firm comprises a drum-shaped carbide holder mounted above a generating tank, a condenser, a washer, an equalising gasholder, and a purifier. Acetylene, the Principles of Its Generation and Use A Practical Handbook on the Production, Purification, and Subsequent Treatment of Acetylene for the Development of Light, Heat, and Power The water rises within the cylindrical case until it comes in contact with the treated carbide, which thereupon begins to evolve gas. Acetylene, the Principles of Its Generation and Use A Practical Handbook on the Production, Purification, and Subsequent Treatment of Acetylene for the Development of Light, Heat, and Power The carbide container is thus carried into the water within the closed half of the tank, and is opened automatically in transit. Acetylene, the Principles of Its Generation and Use A Practical Handbook on the Production, Purification, and Subsequent Treatment of Acetylene for the Development of Light, Heat, and Power The surest way to avoid impure gas is to use high-grade calcium carbide in the generator and the carbide of American manufacture is now so pure that it never causes trouble. Oxy-Acetylene Welding and Cutting Electric, Forge and Thermit Welding together with related methods and materials used in metal working and the oxygen process for removal of carbon It would be well-nigh fatal to use water on carbide. Tom Swift and His Aerial Warship, or, the Naval Terror of the Seas The generators contain trays with compartments intended to be half filled with carbide. Acetylene, the Principles of Its Generation and Use A Practical Handbook on the Production, Purification, and Subsequent Treatment of Acetylene for the Development of Light, Heat, and Power The generating plant made by this firm, using granulated carbide, comprises an equalising gasholder E alongside a generating tank B, which is surmounted by a closed carbide receptacle A and a distributing appliance. Acetylene, the Principles of Its Generation and Use A Practical Handbook on the Production, Purification, and Subsequent Treatment of Acetylene for the Development of Light, Heat, and Power When the carbide in the first cylinder is exhausted, the water passes on to a second. Acetylene, the Principles of Its Generation and Use A Practical Handbook on the Production, Purification, and Subsequent Treatment of Acetylene for the Development of Light, Heat, and Power The materials unite and form an ingot of very pure carbide surrounded by a crust of less purity. Oxy-Acetylene Welding and Cutting Electric, Forge and Thermit Welding together with related methods and materials used in metal working and the oxygen process for removal of carbon There were some machines in there, as well as explosives and chemicals, in addition to the store of carbide. Tom Swift and His Aerial Warship, or, the Naval Terror of the Seas The German and Austrian Associations' regulations, however, provide a standard for the quality of granulated carbide. Acetylene, the Principles of Its Generation and Use A Practical Handbook on the Production, Purification, and Subsequent Treatment of Acetylene for the Development of Light, Heat, and Power The carbide contained in each chamber yields sufficient gas nearly to fill the gasholder. Acetylene, the Principles of Its Generation and Use A Practical Handbook on the Production, Purification, and Subsequent Treatment of Acetylene for the Development of Light, Heat, and Power It also directs the course of the evolved gas on its way to the service-pipe through the carbide in the feed chamber C, whereby the gas is dried. Acetylene, the Principles of Its Generation and Use A Practical Handbook on the Production, Purification, and Subsequent Treatment of Acetylene for the Development of Light, Heat, and Power The abundance of water in the carbide to water machines effects this cooling naturally and is a characteristic of well designed machines of this class. Oxy-Acetylene Welding and Cutting Electric, Forge and Thermit Welding together with related methods and materials used in metal working and the oxygen process for removal of carbon Water would have been worse than useless, because of the carbide, but the sand covered it up so that it was made perfectly harmless. Tom Swift and His Aerial Warship, or, the Naval Terror of the Seas A tappet on the bell of an equalising gasholder depresses a lever which causes water to flow into a funnel, the outlet of which leads to a generating chamber containing carbide. Acetylene, the Principles of Its Generation and Use A Practical Handbook on the Production, Purification, and Subsequent Treatment of Acetylene for the Development of Light, Heat, and Power The generating tank is closed at the top, but on one side there is a shoot D through which the carbide is discharged from the chambers in turn into the water in the tank. Acetylene, the Principles of Its Generation and Use A Practical Handbook on the Production, Purification, and Subsequent Treatment of Acetylene for the Development of Light, Heat, and Power Each chamber of the drum holds sufficient carbide to make a volume of gas nearly equal to the capacity of the gasholder. Acetylene, the Principles of Its Generation and Use A Practical Handbook on the Production, Purification, and Subsequent Treatment of Acetylene for the Development of Light, Heat, and Power After using the carbide in this division, it is flooded in turn and the water passing on to those next in order, uses the entire charge of the whole tray. Oxy-Acetylene Welding and Cutting Electric, Forge and Thermit Welding together with related methods and materials used in metal working and the oxygen process for removal of carbon It is made in two sizes, for charges of 5-1/2 and 11 lb. of carbide respectively. Acetylene, the Principles of Its Generation and Use A Practical Handbook on the Production, Purification, and Subsequent Treatment of Acetylene for the Development of Light, Heat, and Power The water supplied flows by way of the water-seal of the cover of the generating chamber to the cylinder containing the carbide cage. Acetylene, the Principles of Its Generation and Use A Practical Handbook on the Production, Purification, and Subsequent Treatment of Acetylene for the Development of Light, Heat, and Power The contents of one carbide chamber suffice to fill the gasholder to two-thirds of its total capacity. Acetylene, the Principles of Its Generation and Use A Practical Handbook on the Production, Purification, and Subsequent Treatment of Acetylene for the Development of Light, Heat, and Power As soon as the carbide in the first generating chamber is exhausted, the water overflows from it through the pipe with by-pass tap J to the second generating chamber. Acetylene, the Principles of Its Generation and Use A Practical Handbook on the Production, Purification, and Subsequent Treatment of Acetylene for the Development of Light, Heat, and Power The residue is removed in the tray and emptied, making the generator ready for a fresh supply of carbide. Oxy-Acetylene Welding and Cutting Electric, Forge and Thermit Welding together with related methods and materials used in metal working and the oxygen process for removal of carbon The outer stopper of the valve descends before the inner plunger and so leaves the conical delivery mouth of the hopper free from carbide. Acetylene, the Principles of Its Generation and Use A Practical Handbook on the Production, Purification, and Subsequent Treatment of Acetylene for the Development of Light, Heat, and Power On the top of each generating tank is mounted a chamber, with conical base, charged with granulated carbide 1/8 to 1/2 inch in size. Acetylene, the Principles of Its Generation and Use A Practical Handbook on the Production, Purification, and Subsequent Treatment of Acetylene for the Development of Light, Heat, and Power The carbide chambers after filling remain hermetically closed until the bottom is opened for the discharge of the carbide. Acetylene, the Principles of Its Generation and Use A Practical Handbook on the Production, Purification, and Subsequent Treatment of Acetylene for the Development of Light, Heat, and Power The charge of carbide is placed in a partitioned container, and is gradually attacked on the flooding principle by the water which enters from the gasholder tank when the ball valve is depressed. Acetylene, the Principles of Its Generation and Use A Practical Handbook on the Production, Purification, and Subsequent Treatment of Acetylene for the Development of Light, Heat, and Power The generator should be of sufficient capacity to furnish gas under working conditions from one charge of carbide to all torches installed for at least five hours continuous use. Oxy-Acetylene Welding and Cutting Electric, Forge and Thermit Welding together with related methods and materials used in metal working and the oxygen process for removal of carbon See Dixon Critical pressure and temperature of acetylene, Crushing of carbide, "Cuprene," Cuprous chloride purifier, Cycle lamps, burners for, dilute alcohol for, Cylinders for absorbed acetylene, Acetylene, the Principles of Its Generation and Use A Practical Handbook on the Production, Purification, and Subsequent Treatment of Acetylene for the Development of Light, Heat, and Power See Mains Shoot generators, Silicon compounds, in acetylene, in carbide, Sirius burner, Slaked lime. Acetylene, the Principles of Its Generation and Use A Practical Handbook on the Production, Purification, and Subsequent Treatment of Acetylene for the Development of Light, Heat, and Power The arm d is thereby brought into position to liberate the catch of the next carbide receptacle. Acetylene, the Principles of Its Generation and Use A Practical Handbook on the Production, Purification, and Subsequent Treatment of Acetylene for the Development of Light, Heat, and Power See Intensity, specific Speed of reactions between carbide, water, and calcium hydroxide, of purification, Spent lime. Acetylene, the Principles of Its Generation and Use A Practical Handbook on the Production, Purification, and Subsequent Treatment of Acetylene for the Development of Light, Heat, and Power This arrangement, while allowing a free passage for the carbide, prevents an excess from falling should the machine stop in any position. Oxy-Acetylene Welding and Cutting Electric, Forge and Thermit Welding together with related methods and materials used in metal working and the oxygen process for removal of carbon The apparatus shall produce no tarry or other heavy condensation products from the decomposition of the carbide. Acetylene, the Principles of Its Generation and Use A Practical Handbook on the Production, Purification, and Subsequent Treatment of Acetylene for the Development of Light, Heat, and Power An acetylene portable apparatus is allowed, provided it holds a charge of not more than 2 lb. of carbide. Acetylene, the Principles of Its Generation and Use A Practical Handbook on the Production, Purification, and Subsequent Treatment of Acetylene for the Development of Light, Heat, and Power The same firm also makes a portable generating apparatus in which the carbide is placed in a basket in the crown of the bell of the gasholder. Acetylene, the Principles of Its Generation and Use A Practical Handbook on the Production, Purification, and Subsequent Treatment of Acetylene for the Development of Light, Heat, and Power In such generators the size of the gasholder space is to be calculated according to the quantity of carbide which can be put into the generator. Acetylene, the Principles of Its Generation and Use A Practical Handbook on the Production, Purification, and Subsequent Treatment of Acetylene for the Development of Light, Heat, and Power Mechanical Feed.—The previously described methods of feeding carbide to the water have all been automatic in action and do not depend on the operator for their proper action. Oxy-Acetylene Welding and Cutting Electric, Forge and Thermit Welding together with related methods and materials used in metal working and the oxygen process for removal of carbon The carbide must be completely decomposed in the apparatus so that no acetylene can be evolved from the residue. Acetylene, the Principles of Its Generation and Use A Practical Handbook on the Production, Purification, and Subsequent Treatment of Acetylene for the Development of Light, Heat, and Power This wastage is not due to any decomposition of the acetylene in contact with water, but depends on the various solubilities of the different gases which compose the product obtained from commercial calcium carbide. Acetylene, the Principles of Its Generation and Use A Practical Handbook on the Production, Purification, and Subsequent Treatment of Acetylene for the Development of Light, Heat, and Power When the bell rises, in consequence of the evolved gas, the ring of carbide buckets is rotated sufficiently to bring the next bucket over the shoot. Acetylene, the Principles of Its Generation and Use A Practical Handbook on the Production, Purification, and Subsequent Treatment of Acetylene for the Development of Light, Heat, and Power In the ordinary way, decomposition of carbide is accompanied by a species of effervescence, but the bubbles should break smartly and leave the surface of the liquid reasonably free from foam. Acetylene, the Principles of Its Generation and Use A Practical Handbook on the Production, Purification, and Subsequent Treatment of Acetylene for the Development of Light, Heat, and Power With the development of the modern electric furnace the possibility of calcium carbide as a commercial product became known. Oxy-Acetylene Welding and Cutting Electric, Forge and Thermit Welding together with related methods and materials used in metal working and the oxygen process for removal of carbon The phenomenon has been examined by Mauricheau-Beaupré, who finds that frothing is not characteristic of pure carbide and that it cannot be attributed to any of the impurities normally present in commercial carbide. Acetylene, the Principles of Its Generation and Use A Practical Handbook on the Production, Purification, and Subsequent Treatment of Acetylene for the Development of Light, Heat, and Power If, however, the carbide contains calcium chloride, frothing is liable to occur. Acetylene, the Principles of Its Generation and Use A Practical Handbook on the Production, Purification, and Subsequent Treatment of Acetylene for the Development of Light, Heat, and Power The carbide falling from the opened bucket strikes the end i of the lever k, and thereby tips the water-bucket I and discharges its contents into the shoot of the generator. Acetylene, the Principles of Its Generation and Use A Practical Handbook on the Production, Purification, and Subsequent Treatment of Acetylene for the Development of Light, Heat, and Power In generators where the whole amount of carbide introduced is not gasified at one time, it must be possible to add fresh water or carbide in safety, without interfering with the action of the apparatus. Acetylene, the Principles of Its Generation and Use A Practical Handbook on the Production, Purification, and Subsequent Treatment of Acetylene for the Development of Light, Heat, and Power The solid material proved to be calcium carbide and the gas acetylene. Oxy-Acetylene Welding and Cutting Electric, Forge and Thermit Welding together with related methods and materials used in metal working and the oxygen process for removal of carbon If all the carbide put into the generator is not gasified at one time, the plate must also state the maximum weight of carbide in the charge. Acetylene, the Principles of Its Generation and Use A Practical Handbook on the Production, Purification, and Subsequent Treatment of Acetylene for the Development of Light, Heat, and Power In other respects the store of carbide for such installations is to be treated as a regular carbide store. Acetylene, the Principles of Its Generation and Use A Practical Handbook on the Production, Purification, and Subsequent Treatment of Acetylene for the Development of Light, Heat, and Power A small drum containing carbide is attached by a clamp to the end of a lever which projects above the open half of the tank. Acetylene, the Principles of Its Generation and Use A Practical Handbook on the Production, Purification, and Subsequent Treatment of Acetylene for the Development of Light, Heat, and Power In the case of plants serving 50 lights or less, not more than 100 kilos. of carbide in closed vessels may be kept in the apparatus house besides the drum actually in use. Acetylene, the Principles of Its Generation and Use A Practical Handbook on the Production, Purification, and Subsequent Treatment of Acetylene for the Development of Light, Heat, and Power When water and calcium carbide are brought together an action takes place which results in the formation of acetylene gas and slaked lime. Oxy-Acetylene Welding and Cutting Electric, Forge and Thermit Welding together with related methods and materials used in metal working and the oxygen process for removal of carbon The proper action and economy of the machine are dependent on the arrangement and amount of carbide placed in the generator. Acetylene, the Principles of Its Generation and Use A Practical Handbook on the Production, Purification, and Subsequent Treatment of Acetylene for the Development of Light, Heat, and Power Oils and the like, or even such non-aqueous liquids as absolute alcohol, have no effect upon carbide, except that the former naturally make it greasy and somewhat more difficult to moisten. Acetylene, the Principles of Its Generation and Use A Practical Handbook on the Production, Purification, and Subsequent Treatment of Acetylene for the Development of Light, Heat, and Power The "A" type of generator made by this firm comprises an equalising bell gasholder, round the bell of which are arranged a series of buckets which are charged with carbide. Acetylene, the Principles of Its Generation and Use A Practical Handbook on the Production, Purification, and Subsequent Treatment of Acetylene for the Development of Light, Heat, and Power The fact that ordinary calcium carbide is attacked so quickly by water is really a defect of the substance; for it is to this extreme rapidity of reaction that the troubles of overheating are due. Acetylene, the Principles of Its Generation and Use A Practical Handbook on the Production, Purification, and Subsequent Treatment of Acetylene for the Development of Light, Heat, and Power A pound of absolutely pure carbide will yield five and one-half cubic feet of acetylene. Oxy-Acetylene Welding and Cutting Electric, Forge and Thermit Welding together with related methods and materials used in metal working and the oxygen process for removal of carbon The extra cost of using treated carbide falls upon the revenue account, and is much more noticeable than that of a large holder, which is capital expenditure. Acetylene, the Principles of Its Generation and Use A Practical Handbook on the Production, Purification, and Subsequent Treatment of Acetylene for the Development of Light, Heat, and Power A 0.1 per cent. solution of calcium chloride appears to yield some foam when carbide is decomposed in it, and a 1 per cent. solution to foam in a pronounced manner. Acetylene, the Principles of Its Generation and Use A Practical Handbook on the Production, Purification, and Subsequent Treatment of Acetylene for the Development of Light, Heat, and Power The water supplied to the carbide is thus under the dual control of the controlling chamber and of the differential pressure within the generating tank. Acetylene, the Principles of Its Generation and Use A Practical Handbook on the Production, Purification, and Subsequent Treatment of Acetylene for the Development of Light, Heat, and Power Recommendation.—It being the general practice to store carbide in the generator-house, the Association recommend that the carbide shall be placed on a slightly raised platform above the floor level. Acetylene, the Principles of Its Generation and Use A Practical Handbook on the Production, Purification, and Subsequent Treatment of Acetylene for the Development of Light, Heat, and Power Yet these two substances are forced into combination in the manufacture of calcium carbide. Oxy-Acetylene Welding and Cutting Electric, Forge and Thermit Welding together with related methods and materials used in metal working and the oxygen process for removal of carbon The seventh section details the fees payable for the inspection of installations and carbide stores, and fixes the penalties for non- compliance with the regulations. Acetylene, the Principles of Its Generation and Use A Practical Handbook on the Production, Purification, and Subsequent Treatment of Acetylene for the Development of Light, Heat, and Power The carbide is then out of water, and except for after-generation, evolution of gas ceases. Acetylene, the Principles of Its Generation and Use A Practical Handbook on the Production, Purification, and Subsequent Treatment of Acetylene for the Development of Light, Heat, and Power In the upper part ten boxes c are installed for the purpose of receiving the carbide. Acetylene, the Principles of Its Generation and Use A Practical Handbook on the Production, Purification, and Subsequent Treatment of Acetylene for the Development of Light, Heat, and Power M is an automatic carbide-feed generator having its store of carbide in a hopper carried by the rising- holder bell. Acetylene, the Principles of Its Generation and Use A Practical Handbook on the Production, Purification, and Subsequent Treatment of Acetylene for the Development of Light, Heat, and Power C, chains for connecting safety locking lever of motor to pins on the top of the carbide plugs. Oxy-Acetylene Welding and Cutting Electric, Forge and Thermit Welding together with related methods and materials used in metal working and the oxygen process for removal of carbon Then, when the bell falls lower, the mushroom d rises from its seat, and carbide drops from the hopper into the water. Acetylene, the Principles of Its Generation and Use A Practical Handbook on the Production, Purification, and Subsequent Treatment of Acetylene for the Development of Light, Heat, and Power In practice, however, it seems to be found that from 1 to 1.5 parts of soda are needed for every part of carbide. Acetylene, the Principles of Its Generation and Use A Practical Handbook on the Production, Purification, and Subsequent Treatment of Acetylene for the Development of Light, Heat, and Power The use of closed carbide containers in charging is intended to preclude the introduction of air into the generator, and the evolution and escape of gas to the air while the carbide is being introduced. Acetylene, the Principles of Its Generation and Use A Practical Handbook on the Production, Purification, and Subsequent Treatment of Acetylene for the Development of Light, Heat, and Power The carbide should be completely decomposed in the apparatus, so that lime sludge discharged from the generator shall not be capable of generating more gas. Acetylene, the Principles of Its Generation and Use A Practical Handbook on the Production, Purification, and Subsequent Treatment of Acetylene for the Development of Light, Heat, and Power After the generator is cleaned and filled with water, fill with carbide and proceed in the same manner as when first charging. Oxy-Acetylene Welding and Cutting Electric, Forge and Thermit Welding together with related methods and materials used in metal working and the oxygen process for removal of carbon Every generator shall have marked clearly upon the outside a statement of the maximum number of half cubic foot burners and the charge of carbide for which it is designed. Acetylene, the Principles of Its Generation and Use A Practical Handbook on the Production, Purification, and Subsequent Treatment of Acetylene for the Development of Light, Heat, and Power The eighth section refers to the notification of the position and description of all carbide works, stores, and acetylene installations to the local authorities. Acetylene, the Principles of Its Generation and Use A Practical Handbook on the Production, Purification, and Subsequent Treatment of Acetylene for the Development of Light, Heat, and Power The carbide is discharged on to a different spot in the generating tank from each bucket. Acetylene, the Principles of Its Generation and Use A Practical Handbook on the Production, Purification, and Subsequent Treatment of Acetylene for the Development of Light, Heat, and Power Be careful never to fill the containers over the specified mark, as it is important to allow for the swelling of the carbide when it comes in contact with water. Acetylene, the Principles of Its Generation and Use A Practical Handbook on the Production, Purification, and Subsequent Treatment of Acetylene for the Development of Light, Heat, and Power The water for generating purposes is carried in the large tank-like compartment directly below the carbide chamber. Oxy-Acetylene Welding and Cutting Electric, Forge and Thermit Welding together with related methods and materials used in metal working and the oxygen process for removal of carbon In the operation of generators of the carbide-feed type it is important that only a limited amount of carbide be fed into a given body of water. Acetylene, the Principles of Its Generation and Use A Practical Handbook on the Production, Purification, and Subsequent Treatment of Acetylene for the Development of Light, Heat, and Power Calcium carbide frequently contains notable quantities of iron and other silicides; but although these bodies are decomposed by acids, yielding hydrogen silicide, or siliciuretted hydrogen, they are not attacked by plain water. Acetylene, the Principles of Its Generation and Use A Practical Handbook on the Production, Purification, and Subsequent Treatment of Acetylene for the Development of Light, Heat, and Power The substance inside the cartridge may be ordinary, granulated, or "treated" carbide. Acetylene, the Principles of Its Generation and Use A Practical Handbook on the Production, Purification, and Subsequent Treatment of Acetylene for the Development of Light, Heat, and Power Thus the purifier may conveniently contain enough material to purify the gas evolved from two drums of carbide, in which case it would need recharging when every second drum of carbide is opened. Acetylene, the Principles of Its Generation and Use A Practical Handbook on the Production, Purification, and Subsequent Treatment of Acetylene for the Development of Light, Heat, and Power Generators are rated according to their carbide capacity in pounds. Oxy-Acetylene Welding and Cutting Electric, Forge and Thermit Welding together with related methods and materials used in metal working and the oxygen process for removal of carbon Analogous reactions take place when either oxide of carbon is led over calcium carbide heated to a temperature of 200° or 250° C., the second product in this case being calcium oxide. Acetylene, the Principles of Its Generation and Use A Practical Handbook on the Production, Purification, and Subsequent Treatment of Acetylene for the Development of Light, Heat, and Power Cuprous carbide or acetylide is the reddish brown amorphous precipitate which is the ultimate product obtained when acetylene is led into an ammoniacal solution of cuprous chloride. Acetylene, the Principles of Its Generation and Use A Practical Handbook on the Production, Purification, and Subsequent Treatment of Acetylene for the Development of Light, Heat, and Power The former process is said to cause the carbide to take up too much oil, so that sticks made by the second method are reputed preferable. Acetylene, the Principles of Its Generation and Use A Practical Handbook on the Production, Purification, and Subsequent Treatment of Acetylene for the Development of Light, Heat, and Power It is clear that for such a purpose as this the acetylene must be prepared from very pure carbide and at the lowest possible temperature in the generator. Acetylene, the Principles of Its Generation and Use A Practical Handbook on the Production, Purification, and Subsequent Treatment of Acetylene for the Development of Light, Heat, and Power Acetylene generators used for producing the gas from the action of water on calcium carbide are divided into three principal classes according to the pressure under which they operate. Oxy-Acetylene Welding and Cutting Electric, Forge and Thermit Welding together with related methods and materials used in metal working and the oxygen process for removal of carbon The meter records check the yield of gas from the carbide consumed in a simple and trustworthy manner, and also serve to indicate when the material in the purifier is likely to be approaching exhaustion. Acetylene, the Principles of Its Generation and Use A Practical Handbook on the Production, Purification, and Subsequent Treatment of Acetylene for the Development of Light, Heat, and Power Since the point b of the shoot extends further into the generator than a, the carbide drops centrally, and as the bubbles of gas rise vertically, they have no opportunity of ascending into the shoot. Acetylene, the Principles of Its Generation and Use A Practical Handbook on the Production, Purification, and Subsequent Treatment of Acetylene for the Development of Light, Heat, and Power The carbide shall not contain higher figures of impurities than shall from time to time be fixed by the Association. Acetylene, the Principles of Its Generation and Use A Practical Handbook on the Production, Purification, and Subsequent Treatment of Acetylene for the Development of Light, Heat, and Power It is also possible to make X work some releasing gear which permits carbide to fall into water—details of this arrangement are given later on. Acetylene, the Principles of Its Generation and Use A Practical Handbook on the Production, Purification, and Subsequent Treatment of Acetylene for the Development of Light, Heat, and Power Another important distinction is formed by the method of bringing the carbide and water together. Oxy-Acetylene Welding and Cutting Electric, Forge and Thermit Welding together with related methods and materials used in metal working and the oxygen process for removal of carbon Between calcium carbide and water vapour a double decomposition occurs chemically identical with that between carbide and liquid water; but the physical effect of the reaction and its practical bearings are considerably modified. Acetylene, the Principles of Its Generation and Use A Practical Handbook on the Production, Purification, and Subsequent Treatment of Acetylene for the Development of Light, Heat, and Power Manifestly, when carbide in lumps of reasonable size is dropped into excess of water which is not merely a thick viscid cream of lime, the temperature cannot possibly exceed the boiling-point—i.e., Acetylene, the Principles of Its Generation and Use A Practical Handbook on the Production, Purification, and Subsequent Treatment of Acetylene for the Development of Light, Heat, and Power Possibly such a material as Frank's carbide process would give, viz., Acetylene, the Principles of Its Generation and Use A Practical Handbook on the Production, Purification, and Subsequent Treatment of Acetylene for the Development of Light, Heat, and Power A further rotation of the hand-wheel then tips the basket over a partition inside the apparatus, allowing the carbide to fall into the actual decomposing chamber. Acetylene, the Principles of Its Generation and Use A Practical Handbook on the Production, Purification, and Subsequent Treatment of Acetylene for the Development of Light, Heat, and Power It should completely use up the carbide, generating the maximum amount of gas. Oxy-Acetylene Welding and Cutting Electric, Forge and Thermit Welding together with related methods and materials used in metal working and the oxygen process for removal of carbon The whole process accordingly lies to be favourably distinguished from those other methods of employing oil in generators or in the treatment of carbide which are referred to elsewhere in this book. Acetylene, the Principles of Its Generation and Use A Practical Handbook on the Production, Purification, and Subsequent Treatment of Acetylene for the Development of Light, Heat, and Power As the material operated upon contained only 91.3 per cent. of true calcium carbide, he estimates the heat corresponding with the decomposition of 1 gramme of pure carbide to be 0.4446 large calorie. Acetylene, the Principles of Its Generation and Use A Practical Handbook on the Production, Purification, and Subsequent Treatment of Acetylene for the Development of Light, Heat, and Power Small carbide of from 4 to 15 mm. Acetylene, the Principles of Its Generation and Use A Practical Handbook on the Production, Purification, and Subsequent Treatment of Acetylene for the Development of Light, Heat, and Power The decomposition of 64 grammes of commercial carbide evolves 28 large calories of heat. Acetylene, the Principles of Its Generation and Use A Practical Handbook on the Production, Purification, and Subsequent Treatment of Acetylene for the Development of Light, Heat, and Power It has been found best and has practically become a fundamental rule of generation that a gallon of water must be provided for each pound of carbide placed in the generator. Oxy-Acetylene Welding and Cutting Electric, Forge and Thermit Welding together with related methods and materials used in metal working and the oxygen process for removal of carbon A further plan for securing a carbide-feed consists in employing some extraneous driving power to propel a charge of carbide out of a reservoir into the generator. Acetylene, the Principles of Its Generation and Use A Practical Handbook on the Production, Purification, and Subsequent Treatment of Acetylene for the Development of Light, Heat, and Power Into this shoot are dropped by hand or shovel lumps of carbide, which fall into the water and there suffer decomposition. Acetylene, the Principles of Its Generation and Use A Practical Handbook on the Production, Purification, and Subsequent Treatment of Acetylene for the Development of Light, Heat, and Power The contents of the first carbide receptacle are then discharged by turning the winch i. Acetylene, the Principles of Its Generation and Use A Practical Handbook on the Production, Purification, and Subsequent Treatment of Acetylene for the Development of Light, Heat, and Power In the sketches G, H, and K, the total space occupied by the various carbide receptacles is represented as being considerably smaller than the capacity of the decomposing chamber. Acetylene, the Principles of Its Generation and Use A Practical Handbook on the Production, Purification, and Subsequent Treatment of Acetylene for the Development of Light, Heat, and Power The water is allowed to flow into one of these compartments in a volume sufficient to produce the desired amount of gas and the carbide is completely used from this one division. Oxy-Acetylene Welding and Cutting Electric, Forge and Thermit Welding together with related methods and materials used in metal working and the oxygen process for removal of carbon In N the carbide is held in a considerable number of small receptacles, two only of which are shown in the drawing, provided with detachable lids and hinged bottoms kept shut by suitable catches. Acetylene, the Principles of Its Generation and Use A Practical Handbook on the Production, Purification, and Subsequent Treatment of Acetylene for the Development of Light, Heat, and Power Owing to its shape and the sliding motion with which the carbide receptacle is put into the container these generators are usually termed "drawer" generators. Acetylene, the Principles of Its Generation and Use A Practical Handbook on the Production, Purification, and Subsequent Treatment of Acetylene for the Development of Light, Heat, and Power When this is done q is closed and p is opened, and the winch i is turned until the contents of the next carbide receptacle are discharged. Acetylene, the Principles of Its Generation and Use A Practical Handbook on the Production, Purification, and Subsequent Treatment of Acetylene for the Development of Light, Heat, and Power Dilute alcohol does not attack calcium carbide so energetically as pure water, because it stands midway between pure water and pure alcohol, which is inert. Acetylene, the Principles of Its Generation and Use A Practical Handbook on the Production, Purification, and Subsequent Treatment of Acetylene for the Development of Light, Heat, and Power The charge of carbide is of one of the smaller sizes, usually "nut" or "quarter." Oxy-Acetylene Welding and Cutting Electric, Forge and Thermit Welding together with related methods and materials used in metal working and the oxygen process for removal of carbon Now the process seems to be known only in that particular form in which granulated carbide is treated with crystallised sodium carbonate, i.e., common washing soda. Acetylene, the Principles of Its Generation and Use A Practical Handbook on the Production, Purification, and Subsequent Treatment of Acetylene for the Development of Light, Heat, and Power In A^2 the bell itself carries a perforated basket of carbide, which is submerged in the water when the bell falls, and lifted out again when it rises. Acetylene, the Principles of Its Generation and Use A Practical Handbook on the Production, Purification, and Subsequent Treatment of Acetylene for the Development of Light, Heat, and Power The following example is quoted: Weight of the tin received, with its contained | carbide . Acetylene, the Principles of Its Generation and Use A Practical Handbook on the Production, Purification, and Subsequent Treatment of Acetylene for the Development of Light, Heat, and Power M is a pipe leading water to the carbide. Acetylene, the Principles of Its Generation and Use A Practical Handbook on the Production, Purification, and Subsequent Treatment of Acetylene for the Development of Light, Heat, and Power The quantity of water depends on the capacity of the generator inasmuch as there must be one gallon for each pound of carbide required. Oxy-Acetylene Welding and Cutting Electric, Forge and Thermit Welding together with related methods and materials used in metal working and the oxygen process for removal of carbon Until it is exhausted, an automatic acetylene generator contains carbide in one place and water in another, dependence being put upon some mechanical arrangement to prevent the two substances coming into contact prematurely. Acetylene, the Principles of Its Generation and Use A Practical Handbook on the Production, Purification, and Subsequent Treatment of Acetylene for the Development of Light, Heat, and Power Thus it is possible to regard either the carbide or the water as the substance which has to be brought into contact with the other in specified quantity. Acetylene, the Principles of Its Generation and Use A Practical Handbook on the Production, Purification, and Subsequent Treatment of Acetylene for the Development of Light, Heat, and Power Alongside the gasholder stands the generating tank H with shoot K, into which the carbide discharged from the buckets falls. Acetylene, the Principles of Its Generation and Use A Practical Handbook on the Production, Purification, and Subsequent Treatment of Acetylene for the Development of Light, Heat, and Power On the other hand, unless made up into balls or cartridges of some symmetrical form, calcium carbide exists in angular masses of highly irregular shape and size. Acetylene, the Principles of Its Generation and Use A Practical Handbook on the Production, Purification, and Subsequent Treatment of Acetylene for the Development of Light, Heat, and Power This is called the "water to carbide" type. Oxy-Acetylene Welding and Cutting Electric, Forge and Thermit Welding together with related methods and materials used in metal working and the oxygen process for removal of carbon After-generation is possible between calcium carbide and mechanically damp slaked lime, between carbide and damp gas, or between carbide and calcium hydroxide, as opportunity shall serve. Acetylene, the Principles of Its Generation and Use A Practical Handbook on the Production, Purification, and Subsequent Treatment of Acetylene for the Development of Light, Heat, and Power Liquid is thus ejected, and may be caused to act upon calcium carbide in some adjacent vessel. Acetylene, the Principles of Its Generation and Use A Practical Handbook on the Production, Purification, and Subsequent Treatment of Acetylene for the Development of Light, Heat, and Power The disc d, on which the bottoms of the carbide- holders are supported, is provided with a slot e. Acetylene, the Principles of Its Generation and Use A Practical Handbook on the Production, Purification, and Subsequent Treatment of Acetylene for the Development of Light, Heat, and Power For the same reason treated carbide can be kept for fairly long periods of time, even in a drum with badly fitting lid, without suffering much deterioration by the action of atmospheric moisture. Acetylene, the Principles of Its Generation and Use A Practical Handbook on the Production, Purification, and Subsequent Treatment of Acetylene for the Development of Light, Heat, and Power A further division of the carbide to water machines is made by mentioning the exact method of feeding the carbide. Oxy-Acetylene Welding and Cutting Electric, Forge and Thermit Welding together with related methods and materials used in metal working and the oxygen process for removal of carbon In the first place, calcium carbide itself is a very bad conductor of heat. Acetylene, the Principles of Its Generation and Use A Practical Handbook on the Production, Purification, and Subsequent Treatment of Acetylene for the Development of Light, Heat, and Power When suitable precautions are not taken to remove the heat liberated in an acetylene apparatus, the temperature of the calcium carbide occasionally rises to a remarkable degree. Acetylene, the Principles of Its Generation and Use A Practical Handbook on the Production, Purification, and Subsequent Treatment of Acetylene for the Development of Light, Heat, and Power The feed-cup consists of an upper cup into which the carbide is first delivered. Acetylene, the Principles of Its Generation and Use A Practical Handbook on the Production, Purification, and Subsequent Treatment of Acetylene for the Development of Light, Heat, and Power Similarly, at least from the theoretical aspect, the reaction, may be caused to stop by ceasing to add carbide to water, or by ceasing to add water to carbide. Acetylene, the Principles of Its Generation and Use A Practical Handbook on the Production, Purification, and Subsequent Treatment of Acetylene for the Development of Light, Heat, and Power This mechanism feeds definite amounts of the carbide to the water as required by the demands on the generator. Oxy-Acetylene Welding and Cutting Electric, Forge and Thermit Welding together with related methods and materials used in metal working and the oxygen process for removal of carbon They may be made more cheaply from the dust produced in the braking of carbide, but in that case the yield of gas will be relatively low. Acetylene, the Principles of Its Generation and Use A Practical Handbook on the Production, Purification, and Subsequent Treatment of Acetylene for the Development of Light, Heat, and Power The carbide in it is then distributed quickly, and as far as may be equally, into the nine remaining carbide receptacles, which are then shut and hung up quickly in the generator. Acetylene, the Principles of Its Generation and Use A Practical Handbook on the Production, Purification, and Subsequent Treatment of Acetylene for the Development of Light, Heat, and Power |
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