| 单词 | magneto |
| 例句 | He switched over to the magneto and the Ford of Lee Chong chuckled and jiggled and clattered happily as though it knew it was working for a man who loved and understood it. Cannery Row 1945-01-01T00:00:00Z “He always tries to start it on the magneto,” said the sage. East of Eden 1952-09-01T00:00:00Z I know only one thing about them for certain, and that is that my engineer grandfather designed a magneto for the Ford Model A, which replaced the hugely successful Model T in 1928. Review: Come for the Warhols, stay for the cars at the late artist's Petersen Automotive show 2022-07-25T04:00:00Z During a test flight, a problem was found in a magneto, which fires the engine spark plugs. Lawsuit: Drill bit left during repair caused Cessna crash 2018-12-03T05:00:00Z Even after retirement, Schlote continued to be active with 4-H and open shows and exhibits and still worked as a mechanic on magnetos, the units on older tractor models that created a spark. Norfolk man shows ribbons as accomplishments 2017-01-29T05:00:00Z These changes are identified by an array of giant magneto resistance, Hall and flux-gate magnetic field sensors. High-precision comparison of the antiproton-to-proton charge-to-mass ratio : Nature : Nature Publishing Group 2015-08-11T04:00:00Z “Two additional puncture holes were found in line with the No. 1 cylinder connecting rod, located between the left and right magnetos. The oil sump was fractured and partially melted away.” News briefs from around Tennessee at 1:58 a.m. EDT 2015-07-15T04:00:00Z I see you start the thing on a battery, and have no magneto. The Everlasting Arms 2012-03-22T02:00:37.327Z Both were serviceable and therefore acceptable, and both required a "magneto". The Wright Brothers' Engines and Their Design 2012-02-04T03:00:15.650Z Women also work on aero-engines, and help in the manufacture of the magneto, the very heart of the machine. The Woman's Part A Record of Munitions Work 2011-12-31T03:00:15.627Z If a magneto be used in connection with the ignition apparatus, its inspection need not be undertaken whenever the engine is started, because it is not so likely to be deranged. Gas-Engines and Producer-Gas Plants A Practice Treatise Setting Forth the Principles of Gas-Engines and Producer Design, the Selection and Installation of an Engine, Conditions of Perfect Operation, Producer-Gas Engines and Their Possibilities, the Care of Gas-Engines and Producer-Gas Plants, with a Chapter on Volatile Hydrocarbon and Oil Engines 2011-12-28T03:00:31.087Z "Are you running on magneto or accumulator, sir?" enquired Philip. A Knight on Wheels 2011-12-24T03:08:07.830Z The strength of the magnet field of a magneto is constant while that of a dynamo varies with the output. Hawkins Electrical Guide, Number One Questions, Answers, & Illustrations, A Progressive Course of Study for Engineers, Electricians, Students and Those Desiring to acquire a Working Knowledge of Electricity and its Applications 2011-12-24T03:07:54.823Z Figure 9.—4-Cylinder vertical engine: a, magneto side; b, valve port side with intake manifold removed; c, flywheel end of engine at Carillon Park Museum, Dayton, Ohio; d, magneto side with crankcase cover removed. The Wright Brothers' Engines and Their Design 2012-02-04T03:00:15.650Z The magnetic influence is always greater at the poles than at the center, and that is why a horseshoe or U-form magnet is used in practically all magnetos or dynamos. Aviation Engines Design?Construction?Operation and Repair 2011-12-04T03:00:04.777Z The same method of inspection is adopted with the make-and-break apparatus of an electric magneto. Gas-Engines and Producer-Gas Plants A Practice Treatise Setting Forth the Principles of Gas-Engines and Producer Design, the Selection and Installation of an Engine, Conditions of Perfect Operation, Producer-Gas Engines and Their Possibilities, the Care of Gas-Engines and Producer-Gas Plants, with a Chapter on Volatile Hydrocarbon and Oil Engines 2011-12-28T03:00:31.087Z After five resounding back-fires the engine still failed to exhibit any signs of abiding vitality, although the accumulator had been reinforced by the magneto. A Knight on Wheels 2011-12-24T03:08:07.830Z In a magneto the field magnets are permanently magnetized. Hawkins Electrical Guide, Number One Questions, Answers, & Illustrations, A Progressive Course of Study for Engineers, Electricians, Students and Those Desiring to acquire a Working Knowledge of Electricity and its Applications 2011-12-24T03:07:54.823Z The spark advance control was in the magneto and, since spark timing was the only means of regulating the engine power and speed, a wide range of adjustment was provided. The Wright Brothers' Engines and Their Design 2012-02-04T03:00:15.650Z Each group of seven-cylinders has its own magneto and lubricating pump. Aviation Engines Design?Construction?Operation and Repair 2011-12-04T03:00:04.777Z The magneto A consists of horseshoe-magnets, between the poles of which the armature rotates. Gas-Engines and Producer-Gas Plants A Practice Treatise Setting Forth the Principles of Gas-Engines and Producer Design, the Selection and Installation of an Engine, Conditions of Perfect Operation, Producer-Gas Engines and Their Possibilities, the Care of Gas-Engines and Producer-Gas Plants, with a Chapter on Volatile Hydrocarbon and Oil Engines 2011-12-28T03:00:31.087Z No one with any claim to social distinction can afford to admit ignorance upon such matters as high-tension magnetos and rotary valves. A Knight on Wheels 2011-12-24T03:08:07.830Z Though used by Faraday, the separately excited dynamo did not come into favor until, in 1866, Wilde employed a small auxiliary magneto machine to furnish currents to excite the field magnets of a larger dynamo. Hawkins Electrical Guide, Number One Questions, Answers, & Illustrations, A Progressive Course of Study for Engineers, Electricians, Students and Those Desiring to acquire a Working Knowledge of Electricity and its Applications 2011-12-24T03:07:54.823Z The magneto was moved toward the rear of the engine a considerable distance and an ignition timing control device was introduced between it and its driving gear. The Wright Brothers' Engines and Their Design 2012-02-04T03:00:15.650Z However, on the exhaust stroke no spark is being generated in the magneto, hence none is produced at the spark-plug. Aviation Engines Design?Construction?Operation and Repair 2011-12-04T03:00:04.777Z During this time, fraternal order membership was fast on the rise in the U.S., and initiation pranks using dry cells and magneto batteries became a popular feature in certain lodges. The Jolt's on You: Turn-of-Last-Century Prank Machines Reveal "Shocking" Hazing Practices [Slide Show] 2011-11-09T14:45:00.260Z After that they would talk about bird-migration, or high-tension magnetos—subjects affording easier and more profitable ground for speculation. A Knight on Wheels 2011-12-24T03:08:07.830Z “If we can get the machine out and the magneto is not short circuited from the water,” said Jack, “I don’t see why you couldn’t run it.” The Motor Girls at Lookout Beach In Quest of the Runaways 2011-11-04T02:00:22.360Z The high-tension magneto had a wide range of spark advance adjustment, which again provided the only control of the engine when equipped with the original fuel pump injection. The Wright Brothers' Engines and Their Design 2012-02-04T03:00:15.650Z Thence it runs down to the tail of the engine, where the magnetos are fitted, and saturates them. Aviation Engines Design?Construction?Operation and Repair 2011-12-04T03:00:04.777Z The magneto was pushed, the carburetor opened, and out we rushed after the shouting beasts. My Attainment of the Pole 2011-08-05T02:00:54.720Z It was found presently in a loosened magneto wire; found and cleverly corrected. The Real Man 2011-07-29T02:00:28.280Z In walking you use the thought and the brain impulse to start the magneto, and then the spinal cord action is automatic. Think A Book for To-day 2011-07-27T02:00:35.180Z The magneto was driven through the camshaft gear, and a shelf, or bracket, cast as an integral part of the case, was provided for mounting it. The Wright Brothers' Engines and Their Design 2012-02-04T03:00:15.650Z The Berling magneto is a true high tension type delivering two impulses per revolution, but it is made in a variety of forms, both single and double spark. Aviation Engines Design?Construction?Operation and Repair 2011-12-04T03:00:04.777Z The carburetor was opened, the spark lever of the magneto was advanced to its limit, and we shot through the waters like a torpedo boat. My Attainment of the Pole 2011-08-05T02:00:54.720Z The repairer gravely informed them that a new magneto was absolutely necessary, and since he had not one in stock he would be obliged to send to Brussels for it. The Dispatch-Riders The Adventures of Two British Motor-cyclists in the Great War 2011-06-24T02:00:22.377Z Perhaps he was even now on his way with the car—that wretched magneto ought to be repaired by this time. Billy Barcroft, R.N.A.S. A story of the Great War 2011-02-24T03:01:02.917Z In the entire 1903 engine only five basic materials—excepting those in the purchased "magneto" and the platinum facing on the ignition-system firing points—were used: steel, cast iron, aluminum, phosphor bronze, and babbit. The Wright Brothers' Engines and Their Design 2012-02-04T03:00:15.650Z This makes it possible to run the magneto slower than would be possible with the two-spark form. Aviation Engines Design?Construction?Operation and Repair 2011-12-04T03:00:04.777Z If I can get her to start on the batteries I can swing her over onto the magneto, and we’ll be all right. The Boys of the Wireless 2011-01-24T03:00:17.997Z With the usual perversity of things in general and motor-cycles in particular, it was the magneto that was out of action. The Dispatch-Riders The Adventures of Two British Motor-cyclists in the Great War 2011-06-24T02:00:22.377Z The 200 h.p. has 2 carburetters and 2 magnetos, and is V type. Jane's All the World's Aircraft 1913 2011-01-04T03:01:14.690Z First comes a ringing magneto which has seen much service. Whispering Wires Manufacturers of magneto plugs usually set the spark points about 1⁄64 of an inch apart. Aviation Engines Design?Construction?Operation and Repair 2011-12-04T03:00:04.777Z I am very sorry, madam," he reported, "but something has gone wrong with the magneto. The Hillman Ringing and listening keys for simple common-battery switchboards differ in no essential respect from those employed in magneto boards. Cyclopedia of Telephony and Telegraphy, Vol. 2 A General Reference Work on Telephony, etc. etc. "The key for the battery and magneto—the key you start the car with." The Blind Man's Eyes “He could have talked with you, but he couldn’t ring your bell without a magneto or an alternating current of some kind.” Whispering Wires The spark-gap of the magneto gives one flash, and the whole front of the machine proceeds to give a Fourth of July performance forthwith. Aviation Engines Design?Construction?Operation and Repair 2011-12-04T03:00:04.777Z "I shall have to take the magneto down, madam," he said. The Hillman Such economy of space is not required in the simple magneto board, because the space might easily be made larger without in any way taxing the reach of the operator. Cyclopedia of Telephony and Telegraphy, Vol. 2 A General Reference Work on Telephony, etc. etc. Somewhere down the line a big plane was getting ready to take off, the pilot was checking his magnetos, revving up his engines. The Golden Skull But wherever he tapped in, he must have used a magneto to ring Mr. Stockbridge up, and afterwards a battery-set to do the talking. Whispering Wires Inasmuch as magneto ignition is universally used in connection with airplane engine ignition it will not be necessary to consider battery ignition systems. Aviation Engines Design?Construction?Operation and Repair 2011-12-04T03:00:04.777Z If the earth wire of a magneto makes a metallic contact there is trouble in the cylinders, so Simmonds is switched off until he can locate the fault.” Cynthia's Chauffeur It must not be supposed, however, that the common-battery system always has advantages over the magneto system, and that it is superior to the magneto or local-battery system for all purposes. Cyclopedia of Telephony and Telegraphy, Vol. 2 A General Reference Work on Telephony, etc. etc. But what kept Holmes' attention were the wires running from the magneto to the mixing chambers of the disintegrating tubes. Astounding Stories, April, 1931 It was in duplicate, of course, like all modern air engines, and there were three magnetos, and double spark plugs. Astounding Stories of Super-Science, June, 1930 If the magneto and spark plugs are in good condition and the engine does not run satisfactorily, the setting should be verified according to instructions previously given, and, if necessary, readjusted. Aviation Engines Design?Construction?Operation and Repair 2011-12-04T03:00:04.777Z Even when the cover was replaced and the tire pumped to the proper degree of air-pressure he lit a cigarette and had a look at the magneto before restarting the engine. Cynthia's Chauffeur If the plant is an old one, however, and is to be re-equipped, the continuance of magneto apparatus might be justified for considerably larger exchanges than those having 500 subscribers. Cyclopedia of Telephony and Telegraphy, Vol. 2 A General Reference Work on Telephony, etc. etc. "Self-starters" have a battery and motor to spin the coil for you until the engine begins to go; then the engine turns the coil of the magneto. Common Science Here I'm supposed to show Mister Sampson the points on our car which is better than any other and I can't tell the windshield from the magneto. Alex the Great The spark-plugs commonly used for battery and coil ignition cannot always be employed when a magneto is fitted. Aviation Engines Design?Construction?Operation and Repair 2011-12-04T03:00:04.777Z Stick a pin through the earth contact of your magneto and jam it against a cylinder, or something of the sort. Cynthia's Chauffeur Pilot lamps, in effect, perform similar service to the night alarm in magneto boards, but, of course, they are silent and do not attract attention unless within the range of vision of the operator. Cyclopedia of Telephony and Telegraphy, Vol. 2 A General Reference Work on Telephony, etc. etc. These little dynamos, like those in automobiles, are usually called magnetos. Common Science A circuit-tester made of a buzzer and several dry cells, or a low voltage lamp and dry cells, or a hand magneto is convenient for use in testing circuits. The Automobile Storage Battery Its Care And Repair In order to obtain the utmost efficiency from the engine, the magneto must be correctly timed to it. Aviation Engines Design?Construction?Operation and Repair 2011-12-04T03:00:04.777Z What, you're broken down——" "It's just that, sir; magneto gone absolutely wrong. The Man Who Drove the Car In these cases the ordinary magneto circuit and instruments have been employed, differing in no respect from those used in commercial service at the present time. Cyclopedia of Telephony and Telegraphy, Vol. 2 A General Reference Work on Telephony, etc. etc. In an automobile, the magneto is a little dynamo that makes the sparks which explode the gasoline. Common Science A well-known type of alternator is the magneto machine which sends shocks through any one who completes the external circuit by holding the brass handles connected by wires to the brushes. How it Works Dealing in simple language with steam, electricity, light, heat, sound, hydraulics, optics, etc., and with their applications to apparatus in common use This operation is usually performed when the magneto is fitted to the engine at the factory. Aviation Engines Design?Construction?Operation and Repair 2011-12-04T03:00:04.777Z It was here that Biggs came after supper, and he and the motor expert got going on my high-tension magneto. The Man Who Drove the Car In a small magneto exchange, the transmitter current may be had from primary batteries, a separate battery being employed for each operator's set. Cyclopedia of Telephony and Telegraphy, Vol. 2 A General Reference Work on Telephony, etc. etc. The poor fellow would ponder for a minute or two and then reply, "Oh! through the magneto." Life in a Tank The magneto was run by a belt from one of the ballonet blowers. The War in the Air; Vol. 1 The Part played in the Great War by the Royal Air Force The spark gap of the average plug is equal to about 1⁄32 of an inch for coil ignition and 1⁄40 of an inch when used in magneto circuits. Aviation Engines Design?Construction?Operation and Repair 2011-12-04T03:00:04.777Z "I'm blowed if I don't think the devil has got inside the magneto," said Biggs; and there I agreed with him. The Man Who Drove the Car The first is an ordinary magneto wall instrument, which embodies the special apparatus and circuit features employed in the standard waystation sets. Cyclopedia of Telephony and Telegraphy, Vol. 2 A General Reference Work on Telephony, etc. etc. From each the pencil had been removed from the magneto, and the float from the carburettor. Malcolm Sage, Detective The set of wireless for the Gamma had to be improvised from odds and ends—an old magneto and some Moscicki jars. The War in the Air; Vol. 1 The Part played in the Great War by the Royal Air Force A simple gauge for determining the gap setting is the thickness of an ordinary visiting card for magneto plugs, or a space equal to the thickness of a worn dime for a coil plug. Aviation Engines Design?Construction?Operation and Repair 2011-12-04T03:00:04.777Z Well, Moss came down from town suddenly on the second afternoon, and while he carried a new magneto under his arm, the bill was in his pocket right enough. The Man Who Drove the Car On those electric railways where the traffic is not especially heavy, an ordinary magneto telephone line is frequently employed with standard magneto instruments. Cyclopedia of Telephony and Telegraphy, Vol. 2 A General Reference Work on Telephony, etc. etc. "Someone's taken the pencils from all the magnetos," he shouted angrily, his face moist with heat and lubricant. Malcolm Sage, Detective The highest grades are employed particularly in making condensers for magnetos of automobile and airplane engines and for radio equipment, and in the manufacture of spark plugs for high tension gas engines. The Economic Aspect of Geology If there should be a tight spot between these two gears it will react disadvantageously on the magneto. Aviation Engines Design?Construction?Operation and Repair 2011-12-04T03:00:04.777Z When I told her that I was waiting for a new magneto from London I thought she would kiss me on the spot. The Man Who Drove the Car At indoor stations, in offices or buildings belonging to the railroad, the regular magneto sets may be employed, as in the first case outlined. Cyclopedia of Telephony and Telegraphy, Vol. 2 A General Reference Work on Telephony, etc. etc. A magneto may fail temporarily; an ignition wire or a valve spring break. Learning to Fly A Practical Manual for Beginners In the later form of magneto machines there is a soft iron sleeve between the magnet poles and the armature. Gas and Oil Engines, Simply Explained An Elementary Instruction Book for Amateurs and Engine Attendants The third available method is to drive the magneto by means of a chain. Aviation Engines Design?Construction?Operation and Repair 2011-12-04T03:00:04.777Z I had a vague idea that the part in question was of, with, or from the magneto. Jonah and Co. The schematic circuit arrangement of an excellent form of magneto intercommunicating system is given in Fig. Cyclopedia of Telephony and Telegraphy, Vol. 2 A General Reference Work on Telephony, etc. etc. They are dependent upon a magneto which is dependent only upon faith. Free Air There are a great number of different types made and used, but for gas-engine use perhaps that known as the magneto ignition is the most satisfactory. Gas and Oil Engines, Simply Explained An Elementary Instruction Book for Amateurs and Engine Attendants With the switch in position “2” the magneto applies ignition to both plugs in each cylinder simultaneously. Aviation Engines Design?Construction?Operation and Repair 2011-12-04T03:00:04.777Z It took us exactly two minutes to locate the trouble—which was in the magneto—and just over two hours to put it right. Jonah and Co. Most of them have magneto sets and can ring each other. Cyclopedia of Telephony and Telegraphy, Vol. 2 A General Reference Work on Telephony, etc. etc. My machine was struck several times, and, as bad luck would have it, the patent point of my magneto fell out just when I got to the spot where shrapnel was thickest. Some Naval Yarns From three o’clock on, the afternoon was a perfect daze of magnetos and batteries and gas feeders and real leather upholstery. Eve to the Rescue The equipment consists of the magneto, coil and special high-tension switch. Aviation Engines Design?Construction?Operation and Repair 2011-12-04T03:00:04.777Z A bit of a touch on his magneto ignition, and a tickling of his coil, just enough to keep him in hospital till he's doctored up.” The Car of Destiny Condensers can be inserted in series with ringers of magneto sets if the testing advantage is valued highly enough. Cyclopedia of Telephony and Telegraphy, Vol. 2 A General Reference Work on Telephony, etc. etc. One vulture will come to exchange old lamps for new, another to do a deal in magnetos, and a third, may be, to better himself in the matter of wheels. Punch, or the London Charivari, Vol. 150, May 10, 1916 Tungsten is used principally for the magnets of magnetos, to some extent in the manufacture of hacksaws, and for special tool steels. The Working of Steel Annealing, Heat Treating and Hardening of Carbon and Alloy Steel With the switch in the OFF position, the magneto is grounded, and the battery circuit is open. Aviation Engines Design?Construction?Operation and Repair 2011-12-04T03:00:04.777Z I cannot too strongly emphasize the importance of walking alone, for then you have shifted your nerve energy from the dry cell battery of the brain to the magneto, which is the spinal cord. Evening Round Up More Good Stuff Like Pep The method most widely used is to equip the waystations with magneto generators which produce direct currents only; such a generator cannot operate a polarized ringer. Cyclopedia of Telephony and Telegraphy, Vol. 2 A General Reference Work on Telephony, etc. etc. I think he's probably disconnected the wires of the magneto—that's what I'd do if I wanted to put a motor out of business in a hurry. Facing the German foe, by Colonel James Fiske He could afford to let it get wet provided the carburetor and magneto were not submerged and the gas tank—— The gas tank. Tom Slade Motorcycle Dispatch Bearer Set the magneto in the advance position and rapidly rock the engine over the top-center position, observing closely if a spark occurs between the end of the high-tension cable and the frame. Aviation Engines Design?Construction?Operation and Repair 2011-12-04T03:00:04.777Z In walking you use the thought and the brain impulse to start the magneto then the spinal cord action is automatic. Evening Round Up More Good Stuff Like Pep When there are more than three or four operators, however, it is usual, even in magneto offices, to obtain the transmitter current from a common storage battery. Cyclopedia of Telephony and Telegraphy, Vol. 2 A General Reference Work on Telephony, etc. etc. Many of the troubles on a modern car are apt to be in connection with the electrical equipment—battery, lights, magneto, timer, self-starter, etc. Heart and Soul by Maveric Post Batteries and magneto were in place, some gasoline was provided, and a little later the motor boat was ready for her first trip in Southern waters. The Outdoor Girls in Florida Or, Wintering in the Sunny South The magneto will then operate as an independent magneto and should spark in the proper manner. Aviation Engines Design?Construction?Operation and Repair 2011-12-04T03:00:04.777Z Over beyond some distant sand dunes, the boys had been told, was the establishment of the boat-builder, where they had taken their craft to have a new magneto put in. The Outdoor Girls at Ocean View Or, The Box That Was Found in the Sand By the same considerations it will be seen that the switchboard line circuit of the branch-terminal multiple magneto system, shown in Fig. Cyclopedia of Telephony and Telegraphy, Vol. 2 A General Reference Work on Telephony, etc. etc. One late afternoon we were hurrying across the mesa to supper, when our magneto flew off into the ditch, scattering screws in all directions. The Smiling Hill-Top And Other California Sketches And—would you believe it?—I only paws around a minute or so before I finds a loose magneto connection, hooks it up proper, and remarks casual, "Now let's try her." On With Torchy A terminal on the end of the cover spring of the magneto is provided for the purpose of connecting the wire leading to a ground switch for stopping the engine. Aviation Engines Design?Construction?Operation and Repair 2011-12-04T03:00:04.777Z "We're having the engine overhauled, a new magneto put in and some other things done." The Outdoor Girls at Ocean View Or, The Box That Was Found in the Sand Common-battery equipment requires the use of currents of different kinds for a greater number of auxiliary purposes than does magneto equipment. Cyclopedia of Telephony and Telegraphy, Vol. 2 A General Reference Work on Telephony, etc. etc. Found two sparking plugs cracked and the magneto very weak. The Luck of Thirteen Wanderings and Flight through Montenegro and Serbia I was just in time to see him bending over to reach for the handle of a magneto battery. The Submarine Boys for the Flag Deeding Their Lives to Uncle Sam As the magneto must be driven at a high speed, a coupling of some flexibility is preferable. Aviation Engines Design?Construction?Operation and Repair 2011-12-04T03:00:04.777Z There was also a coil of wire and a boxed magneto battery. The Submarine Boys and the Spies Dodging the Sharks of the Deep A far simpler device, the plain magneto switchboard—so simple that the girl who manipulates it may also often care for its troubles—is admirably adapted to the purpose. Cyclopedia of Telephony and Telegraphy, Vol. 2 A General Reference Work on Telephony, etc. etc. Our car is a beastly nuisance in the dark, the lamps, electric and worked from the magneto, only giving light when going at full speed, which is impossible on these roads. The Luck of Thirteen Wanderings and Flight through Montenegro and Serbia Now, I happened to know that magneto batteries are made for the purpose of touching off explosives at a safe distance. The Submarine Boys for the Flag Deeding Their Lives to Uncle Sam With this exact position of the armature, fix the magneto to the driving member of the engine. Aviation Engines Design?Construction?Operation and Repair 2011-12-04T03:00:04.777Z Good heavens, the scoundrels had a regular magneto battery, insulated wire and all, for firing that mine from the shore. The Submarine Boys and the Spies Dodging the Sharks of the Deep As a central-office equipment is required to ring many subscribers' bells, only the small ones find it convenient to ring them by means of hand-operated magneto generators. Cyclopedia of Telephony and Telegraphy, Vol. 2 A General Reference Work on Telephony, etc. etc. Shoeing restive horses by the aid of electricity is not new, experiments thereon having been performed as long ago as 1879 by Mr. Defoy, who operated with a small magneto machine. Scientific American Supplement, No. 443, June 28, 1884 Forcing Millard to get upon his feet, the boys inspected, first the magneto battery, to which was attached wire buried in the ground. The Submarine Boys for the Flag Deeding Their Lives to Uncle Sam The wiring of the magneto is clearly shown by wiring diagram. Aviation Engines Design?Construction?Operation and Repair 2011-12-04T03:00:04.777Z The exciting current was at first obtained from a small permanent magneto machine; but it was afterward found that the machine could be made self-exciting. Notable Events of the Nineteenth Century Great Deeds of Men and Nations and the Progress of the World Small magneto switchboards are usually equipped so that each operator is provided with a hand-generator, but even where such is the case some source of ringing current not manually operated is desirable. Cyclopedia of Telephony and Telegraphy, Vol. 2 A General Reference Work on Telephony, etc. etc. The sparking being still weak, he examined the magneto: it was choked with grease. Round the World in Seven Days A battery and magneto receiver are connected in series with the device. Cyclopedia of Telephony & Telegraphy Vol. 1 A General Reference Work on Telephony, etc. etc. The switch used with the independent type must be mounted in such a manner that there will be a metallic connection between the frame of the magneto and the metal portion of the switch. Aviation Engines Design?Construction?Operation and Repair 2011-12-04T03:00:04.777Z "Besides, we are going to capture Sambo yet, and then we shall want that magneto for evidence." The Young Engineers on the Gulf Or, The Dread Mystery of the Million Dollar Breakwater The type of telephone switchboard equipment, whether magneto or common-battery, automatic or manual, will, of course, largely affect the circuit arrangement of the power plant. Cyclopedia of Telephony and Telegraphy, Vol. 2 A General Reference Work on Telephony, etc. etc. Pull off the hood over the engines," cried Jack to Harry who was quickly down the companion-way, "and see if the wires from the magneto are disconnected. Boy Scouts in Southern Waters The magneto transmitter produces current; the carbon transmitter controls current. Cyclopedia of Telephony & Telegraphy Vol. 1 A General Reference Work on Telephony, etc. etc. The high-tension terminal brush on the side of the magneto should also be carefully inspected for proper tension. Aviation Engines Design?Construction?Operation and Repair 2011-12-04T03:00:04.777Z This time the huge negro pumped at the handle of the magneto until he was all but out of breath. The Young Engineers on the Gulf Or, The Dread Mystery of the Million Dollar Breakwater These are about the only needs for which current must be furnished in an ordinary magneto central office. Cyclopedia of Telephony and Telegraphy, Vol. 2 A General Reference Work on Telephony, etc. etc. All work should be frequently tested for continuity with telephones, magnetos, or small portable galvanometers. Scientific American Supplement, No. 821, September 26, 1891 The magneto transmitter produces alternating current without input of any electricity at all; the carbon transmitter merely controls a direct current, supplied by an external source, and varies its amount without changing its direction. Cyclopedia of Telephony & Telegraphy Vol. 1 A General Reference Work on Telephony, etc. etc. The magneto in the various systems which employ a transformer coil is very similar to a low-tension generator in general construction, and the current delivered at the terminals seldom exceeds 100 volts. Aviation Engines Design?Construction?Operation and Repair 2011-12-04T03:00:04.777Z "I found the firing magneto, and had a chance to cut the wires." The Young Engineers on the Gulf Or, The Dread Mystery of the Million Dollar Breakwater Clearly the requirements for current supply differ greatly for magneto and common-battery systems. Cyclopedia of Telephony and Telegraphy, Vol. 2 A General Reference Work on Telephony, etc. etc. The next day we were busy with the trucks; towards evening all of them were in shape including the Number 74-M in which you ordered the change of magneto, and ready to move. Rescuing the Czar Two authentic Diaries arranged and translated The more complete circuits of a series magneto telephone are shown in Fig. Cyclopedia of Telephony & Telegraphy Vol. 1 A General Reference Work on Telephony, etc. etc. The true high-tension magneto differs from the preceding inasmuch as the current of high voltage is produced in the armature winding direct, without the use of the separate coil. Aviation Engines Design?Construction?Operation and Repair 2011-12-04T03:00:04.777Z At that rate, the first real job is to find the magneto. The Young Engineers on the Gulf Or, The Dread Mystery of the Million Dollar Breakwater These facts make the power plant in a common-battery office much more important than in a magneto office. Cyclopedia of Telephony and Telegraphy, Vol. 2 A General Reference Work on Telephony, etc. etc. The wires were attached, and all hands went back, most of them going considerably to the rear of the man at the magneto battery. The Young Engineers in Mexico Or, Fighting the Mine Swindlers It is seen that this instrument employs a local battery for talking and also a magneto generator for calling the central office. Cyclopedia of Telephony & Telegraphy Vol. 1 A General Reference Work on Telephony, etc. etc. Put five drops of oil in the oil cup at the driving end of the magneto for every fifty hours of actual running. Aviation Engines Design?Construction?Operation and Repair 2011-12-04T03:00:04.777Z Arrived at the water front the magneto was dumped into the motor boat. The Young Engineers on the Gulf Or, The Dread Mystery of the Million Dollar Breakwater The operation of the system aside from the busy-test feature is just like that described in connection with the simple magneto switchboard. Cyclopedia of Telephony and Telegraphy, Vol. 2 A General Reference Work on Telephony, etc. etc. The fourth trip he came down with a magneto and several coils of light firing wire. The Young Engineers in Nevada Or, Seeking Fortune on the Turn of a Pick Sneak-current arresters, therefore, should be a part of subscribers' station protectors in magneto equipment, except in such rural districts as may have no lighting or power wires. Cyclopedia of Telephony & Telegraphy Vol. 1 A General Reference Work on Telephony, etc. etc. This provides an automatic advance as soon as the switch is thrown to the magneto position “MAG.” Aviation Engines Design?Construction?Operation and Repair 2011-12-04T03:00:04.777Z "The fellow must use a magneto, attached to wires running under the water," concluded Tom. The Young Engineers on the Gulf Or, The Dread Mystery of the Million Dollar Breakwater A multiple magneto switchboard employing the form of circuits just described is shown in Fig. Cyclopedia of Telephony and Telegraphy, Vol. 2 A General Reference Work on Telephony, etc. etc. One spark from the magneto, now," chuckled Dolph, "and both blasts will go on at once. The Young Engineers in Nevada Or, Seeking Fortune on the Turn of a Pick However, a local battery telephone is not necessarily a magneto telephone and vice versâ, since sometimes magneto telephones have no local batteries and sometimes local battery telephones have no magnetos. Cyclopedia of Telephony & Telegraphy Vol. 1 A General Reference Work on Telephony, etc. etc. The moving parts of the magneto need never be disturbed if the high-tension winding is to be removed. Aviation Engines Design?Construction?Operation and Repair 2011-12-04T03:00:04.777Z "If it isn't a magneto, or if I can't find it in time," Tom muttered uneasily, "the mystery may remain nearly as great as ever, and the explosion may be pulled off to-night, after all." The Young Engineers on the Gulf Or, The Dread Mystery of the Million Dollar Breakwater In connection with the assembly of these magneto multiple switchboards, as installed by the Monarch Company, Fig. Cyclopedia of Telephony and Telegraphy, Vol. 2 A General Reference Work on Telephony, etc. etc. "Now, take the magneto back about two hundred feet, leaving the wires stretched on the snow," whispered Dolph. The Young Engineers in Nevada Or, Seeking Fortune on the Turn of a Pick This method of selective signaling has, therefore, been more frequently used with magneto systems. Cyclopedia of Telephony & Telegraphy Vol. 1 A General Reference Work on Telephony, etc. etc. In using magneto ignition some precautions are necessary relating to wiring and also the character of the spark-plugs employed. Aviation Engines Design?Construction?Operation and Repair 2011-12-04T03:00:04.777Z Attached to the magneto was the wire that must connect, in some way, with the series of tubes that would soon be fastened in the retaining wall out yonder. The Young Engineers on the Gulf Or, The Dread Mystery of the Million Dollar Breakwater This method of supporting drops and jacks is one that is equally adaptable for use in other forms of boards, such as the simple magneto switchboard. Cyclopedia of Telephony and Telegraphy, Vol. 2 A General Reference Work on Telephony, etc. etc. Now, get the magneto back, as I told you. The Young Engineers in Nevada Or, Seeking Fortune on the Turn of a Pick Show step by step the various operations of a telephone system wherein the lines center in a magneto switchboard. Cyclopedia of Telephony & Telegraphy Vol. 1 A General Reference Work on Telephony, etc. etc. When this method of driving is employed, great care must be exercised in providing sufficient clearance between the gear on the magneto and the driving gear. Aviation Engines Design?Construction?Operation and Repair 2011-12-04T03:00:04.777Z "Before we go, though, we'll get the magneto and take it with us." The Young Engineers on the Gulf Or, The Dread Mystery of the Million Dollar Breakwater Although once very widely used, the magneto multiple switchboard has almost passed out of existence, since it has become almost universal practice to equip exchanges large enough to employ multiple boards with common-battery systems. Cyclopedia of Telephony and Telegraphy, Vol. 2 A General Reference Work on Telephony, etc. etc. Dolph deftly attached the wires to the magneto, then seized the handle, prepared to pump. The Young Engineers in Nevada Or, Seeking Fortune on the Turn of a Pick A better idea of the arrangement of drops, jacks, plugs, and keys may be had from an illustration of a Dean magneto switchboard shown in Fig. Cyclopedia of Telephony & Telegraphy Vol. 1 A General Reference Work on Telephony, etc. etc. In position “1” the switch connects the magneto in such a way that it operates as an ordinary single-spark magneto. Aviation Engines Design?Construction?Operation and Repair 2011-12-04T03:00:04.777Z Through the deep woods Tom was heading for the spot where he had found the magneto. The Young Engineers on the Gulf Or, The Dread Mystery of the Million Dollar Breakwater This series multiple magneto system was used with a great many variations, and it had a good many defects. Cyclopedia of Telephony and Telegraphy, Vol. 2 A General Reference Work on Telephony, etc. etc. While this was being made ready, Hazelton superintended the laying of the wires to the magneto battery. The Young Engineers in Nevada Or, Seeking Fortune on the Turn of a Pick Are lamps in cord circuits to be advocated on magneto switchboards? Cyclopedia of Telephony & Telegraphy Vol. 1 A General Reference Work on Telephony, etc. etc. In this position of the switch the entire voltage generated in the magneto is concentrated at one spark-plug instead of being divided in half. Aviation Engines Design?Construction?Operation and Repair 2011-12-04T03:00:04.777Z Then he gave a half dozen indolent though steady strokes to the handle of the magneto. The Young Engineers on the Gulf Or, The Dread Mystery of the Million Dollar Breakwater Such tests are hindered by the presence of ringer bridges across the line, as in magneto practice. Cyclopedia of Telephony and Telegraphy, Vol. 2 A General Reference Work on Telephony, etc. etc. "Now, work away, my magneto beauty" muttered Gage, exultantly. The Young Engineers in Nevada Or, Seeking Fortune on the Turn of a Pick Give cross-section of upright switchboard as used in the magneto system. Cyclopedia of Telephony & Telegraphy Vol. 1 A General Reference Work on Telephony, etc. etc. The dual feature consists of the addition to the magneto of a battery interrupter. Aviation Engines Design?Construction?Operation and Repair 2011-12-04T03:00:04.777Z Several dozen shoves he had administered before he halted, let go of the magneto and raised himself to his full, majestic height. The Young Engineers on the Gulf Or, The Dread Mystery of the Million Dollar Breakwater With magneto sets, waystation agents sometimes call each other direct and neglect to record the call and to remit its price. Cyclopedia of Telephony and Telegraphy, Vol. 2 A General Reference Work on Telephony, etc. etc. He pumped the handle of the magneto vigorously. The Young Engineers in Nevada Or, Seeking Fortune on the Turn of a Pick The Kellogg Company regularly equips its magneto telephones with air-gap arresters of the type shown in Fig. Cyclopedia of Telephony & Telegraphy Vol. 1 A General Reference Work on Telephony, etc. etc. The battery and coil are then disconnected, and the magneto furnishes ignition to both plugs in each cylinder. Aviation Engines Design?Construction?Operation and Repair 2011-12-04T03:00:04.777Z Carelessly the negro bent over his magneto, seized the handle and gave a push. The Young Engineers on the Gulf Or, The Dread Mystery of the Million Dollar Breakwater Usually a magneto private branch exchange works in conjunction with a magneto main office, but this is not always true. Cyclopedia of Telephony and Telegraphy, Vol. 2 A General Reference Work on Telephony, etc. etc. "You watch me, and see just how I run this magneto," Hazelton said to one of their men who stood near by. The Young Engineers in Nevada Or, Seeking Fortune on the Turn of a Pick The signals on such switchboards are electromagnetic devices capable of responding to the currents of the magneto generators at the subscribers' stations. Cyclopedia of Telephony & Telegraphy Vol. 1 A General Reference Work on Telephony, etc. etc. In the first method described below, the most advantageous position of the piston for fully advanced ignition is determined in relation to the extreme advanced position of the magneto. Aviation Engines Design?Construction?Operation and Repair 2011-12-04T03:00:04.777Z Twenty minutes passed before Reade, with all his senses alert, stumbled on the concealed magneto. The Young Engineers on the Gulf Or, The Dread Mystery of the Million Dollar Breakwater A magneto bell of the bridging type is permanently bridged across each line at the station to which that line belongs. Cyclopedia of Telephony and Telegraphy, Vol. 2 A General Reference Work on Telephony, etc. etc. Then another drilling was made, and the sixth stick put in place, the magneto wires being connected with the charge. The Young Engineers in Nevada Or, Seeking Fortune on the Turn of a Pick This fact is accountable for magneto switchboards often being referred to as local-battery switchboards, in contradistinction to common-battery switchboards which are equipped so as to supply the connected subscribers' stations with talking current. Cyclopedia of Telephony & Telegraphy Vol. 1 A General Reference Work on Telephony, etc. etc. It is safe to assume that the trouble is not in the magneto, and the carburetor, gasoline supply and spark-plugs should first be investigated. Aviation Engines Design?Construction?Operation and Repair 2011-12-04T03:00:04.777Z It enabled him to hide his head within fifteen feet of the handle of the magneto. The Young Engineers on the Gulf Or, The Dread Mystery of the Million Dollar Breakwater The waystations on such a line are equipped with magneto generators. Cyclopedia of Telephony and Telegraphy, Vol. 2 A General Reference Work on Telephony, etc. etc. "The blasts were fired by magneto," he explained. The Young Engineers in Nevada Or, Seeking Fortune on the Turn of a Pick The line signal in magneto switchboards is practically always in the form of an electromagnetic annunciator or drop. Cyclopedia of Telephony & Telegraphy Vol. 1 A General Reference Work on Telephony, etc. etc. If the magneto is suspected, the first thing to do is to determine if it will deliver a spark. Aviation Engines Design?Construction?Operation and Repair 2011-12-04T03:00:04.777Z Humming an old plantation melody the negro reached his concealed magneto, then stood up for a brief moment, staring seaward in the direction from which he had just come. The Young Engineers on the Gulf Or, The Dread Mystery of the Million Dollar Breakwater Private branch switchboards may be of common-battery or magneto types regardless of whether they work in conjunction with main office equipments having common-battery or magneto equipments. Cyclopedia of Telephony and Telegraphy, Vol. 2 A General Reference Work on Telephony, etc. etc. Harry worked the handle of the magneto up and down. The Young Engineers in Nevada Or, Seeking Fortune on the Turn of a Pick With these general statements in mind we may take up in some detail the various operations of a telephone system wherein the lines center in a magneto switchboard. Cyclopedia of Telephony & Telegraphy Vol. 1 A General Reference Work on Telephony, etc. etc. Then turn over the motor, thus revolving the magneto armature, and see if a spark is produced at the spark gaps of the plugs. Aviation Engines Design?Construction?Operation and Repair 2011-12-04T03:00:04.777Z Sambo Ebony was at large, and Tom believed that other things than the magneto had been concealed at this spot. The Young Engineers on the Gulf Or, The Dread Mystery of the Million Dollar Breakwater The cases where the private branch board is of common-battery type and the main office of magneto type are comparatively so few that they need not be treated here. Cyclopedia of Telephony and Telegraphy, Vol. 2 A General Reference Work on Telephony, etc. etc. "With a magneto," Tom explained, then ran and took the battery from behind the tree from which he had fired it. The Young Engineers in Nevada Or, Seeking Fortune on the Turn of a Pick A switchboard plug such as is commonly used in simple magneto switchboards is shown in Fig. Cyclopedia of Telephony & Telegraphy Vol. 1 A General Reference Work on Telephony, etc. etc. This winding constitutes all of the magneto windings, no external spark coil being necessary. Aviation Engines Design?Construction?Operation and Repair 2011-12-04T03:00:04.777Z By using his eyes and his reasoning powers Reade, after twenty minutes more of search, with some sly digging, unearthed a section of the wire some dozen feet from the magneto. The Young Engineers on the Gulf Or, The Dread Mystery of the Million Dollar Breakwater There is no royal road to a proper decision in the matter, and no sharp line of demarcation may be drawn between the places where common-battery systems are superior to magneto and vice vers�. Cyclopedia of Telephony and Telegraphy, Vol. 2 A General Reference Work on Telephony, etc. etc. She was writing about magnetos in a way to make you want to drop your customer, or your ironing, or your game, and go downtown and buy that particular kind of magneto at once. Personality Plus Some Experiences of Emma McChesney and Her Son, Jock Thus we may have magneto switchboards, which are those capable of serving lines equipped with magneto telephones, local batteries being used for talking purposes. Cyclopedia of Telephony & Telegraphy Vol. 1 A General Reference Work on Telephony, etc. etc. The bearings of the magneto are provided with oil cups and a few drops of light oil every 1,000 miles are sufficient. Aviation Engines Design?Construction?Operation and Repair 2011-12-04T03:00:04.777Z At the same instant I gave the magneto a quick turn, which sent the dog away a very surprised animal. The Boy Mechanic: Volume 1 700 Things for Boys to Do It may be said, however, that in the building of all new telephone plants having over about 500 local subscribers, the common-battery system is undoubtedly superior to the magneto. Cyclopedia of Telephony and Telegraphy, Vol. 2 A General Reference Work on Telephony, etc. etc. He used to try to make magnetos out of horseshoe magnets, and at one time attempted to build a dynamo. Analyzing Character The series of figures showing the cycle of operations of the magneto switchboard about to be discussed are typical of this type of switchboard almost regardless of make. Cyclopedia of Telephony & Telegraphy Vol. 1 A General Reference Work on Telephony, etc. etc. A gauge of the proper size is attached to the screwdriver furnished with the magneto. Aviation Engines Design?Construction?Operation and Repair 2011-12-04T03:00:04.777Z Neutralize the currents delivered by the magnetos of hostile planes to their spark-plugs, and you transform the most powerful engines into inert matter. The Flying Legion The next important step in the development of the magneto multiple switchboard was that which produced the so-called branch-terminal board. Cyclopedia of Telephony and Telegraphy, Vol. 2 A General Reference Work on Telephony, etc. etc. But I'd have been off when the others went if I hadn't had some unexpected magneto trouble. Strawberry Acres The matter of cord circuits in magneto switchboards is deserving of much attention. Cyclopedia of Telephony & Telegraphy Vol. 1 A General Reference Work on Telephony, etc. etc. It is upon this principle that the modern dynamo or magneto is constructed. Aviation Engines Design?Construction?Operation and Repair 2011-12-04T03:00:04.777Z This made the telephone commercial, as the magneto telephone receiver of Bell was too weak to be used as a transmitter commercially.' Radio Boys Cronies Or, Bill Brown's Radio Furthermore, with the magneto multiple switchboard no provision need be made for a power plant, which, in towns of small size, is often an important consideration. Cyclopedia of Telephony and Telegraphy, Vol. 2 A General Reference Work on Telephony, etc. etc. It was made by the Evinrude Motor Company, who had a magneto placed in the flywheel of the engine so that we never had to resort to the battery to run the motor. Through the Brazilian Wilderness The assembly of all the parts of a simple magneto switchboard into a complete whole deserves final consideration. Cyclopedia of Telephony & Telegraphy Vol. 1 A General Reference Work on Telephony, etc. etc. The armature of a practical magneto, therefore, differs materially from that shown in the diagram. Aviation Engines Design?Construction?Operation and Repair 2011-12-04T03:00:04.777Z The general community would be like an automobile when the magneto fails. What is Coming? Nevertheless there is a field for magneto multiple switchboards, and in this field it has recently been coming into increasing favor. Cyclopedia of Telephony and Telegraphy, Vol. 2 A General Reference Work on Telephony, etc. etc. It provides the spark that explodes the charge of gas in the cylinders, and platinum is a metal, more valuable now than gold, much used in the delicate parts of the magneto. Tom Swift and His Air Glider, or Seeking the Platinum Treasure There has also been a tendency to employ the common-battery system of operation in many places where magneto service should have been used, a mistake which has now been realized and corrected. Cyclopedia of Telephony & Telegraphy Vol. 1 A General Reference Work on Telephony, etc. etc. Put five drops of oil in the oil cup at the interrupter end of the magneto, located at one side of the cam housing, for every hundred hours of actual running. Aviation Engines Design?Construction?Operation and Repair 2011-12-04T03:00:04.777Z He tried in vain to get the magneto to resume the giving out of sparks, and, failing in that, he switched on the batteries. Tom Swift and His Sky Racer, or, the Quickest Flight on Record The reason for this is that by its use the magneto telephones already in service may be continued, no change being required outside of the central office. Cyclopedia of Telephony and Telegraphy, Vol. 2 A General Reference Work on Telephony, etc. etc. "Yes, I need some for my magneto," began the young inventor. Tom Swift and His Air Glider, or Seeking the Platinum Treasure In this the operator's talking apparatus and her calling apparatus are embodied in an ordinary magneto wall telephone. Cyclopedia of Telephony & Telegraphy Vol. 1 A General Reference Work on Telephony, etc. etc. In this magneto the rotating member consists of two pieces of magnetic material separated by a non-magnetic center piece. Aviation Engines Design?Construction?Operation and Repair 2011-12-04T03:00:04.777Z The propellers were still whirring around by their own momentum, and if Tom could switch in the magneto in time all might yet be well. Tom Swift and His Sky Racer, or, the Quickest Flight on Record It may be that all of these towns except one are clearly of a size to demand magneto equipment and that magneto equipment is the standard throughout the entire territory of the company. Cyclopedia of Telephony and Telegraphy, Vol. 2 A General Reference Work on Telephony, etc. etc. Tom and Ned worked rapidly on the magneto, and soon had replaced the defective bits of platinum. Tom Swift and His Air Glider, or Seeking the Platinum Treasure Make diagram of the circuit of a series magneto set with receiver on the hook and explain how the different currents are flowing. Cyclopedia of Telephony & Telegraphy Vol. 1 A General Reference Work on Telephony, etc. etc. Check timing of magneto and see that all brushes are making contact. Aviation Engines Design?Construction?Operation and Repair 2011-12-04T03:00:04.777Z Then the young inventor, leaning forward, for the magneto was within easy reach, looked to see what the trouble was. Tom Swift and His Sky Racer, or, the Quickest Flight on Record Having occasion to move it a little distance for inspection, Mr. Burgess picked it up and walked off with it—cylinders, pistons, crankcase and all, even the magneto, being attached. Flying Machines: construction and operation; a practical book which shows, in illustrations, working plans and text, how to build and navigate the modern airship "Then you won't take a ride with me to-day?" asked the young inventor, of the Russian, as he completed the repairs to the magneto. Tom Swift and His Air Glider, or Seeking the Platinum Treasure As already stated those switchboards which are adapted to work in conjunction with magneto telephones are called magneto switchboards. Cyclopedia of Telephony & Telegraphy Vol. 1 A General Reference Work on Telephony, etc. etc. After it has warmed up, short one magneto and then the other, to be sure both magnetos and spark-plugs are firing properly. Aviation Engines Design?Construction?Operation and Repair 2011-12-04T03:00:04.777Z The magneto took up the work in a flash. Tom Swift and His Sky Racer, or, the Quickest Flight on Record A single camshaft operates not only all of the inlet and exhaust valves, but the magneto and gear water pump, as well. Flying Machines: construction and operation; a practical book which shows, in illustrations, working plans and text, how to build and navigate the modern airship The young inventor took in every bit of machinery in a quick glance, and he saw at once that the main dynamo and magneto had short-circuited, and gone out of commission. Tom Swift and His Air Glider, or Seeking the Platinum Treasure Since, as a rule, magneto telephones are equipped with local batteries, it follows that the magneto switchboard does not need to be arranged for supplying the subscribers' stations with talking current. Cyclopedia of Telephony & Telegraphy Vol. 1 A General Reference Work on Telephony, etc. etc. Short circuits in the condenser or internal wiring of induction coils or magnetos, which are fortunately not common, can seldom be remedied except at the factory where these devices were made. Aviation Engines Design?Construction?Operation and Repair 2011-12-04T03:00:04.777Z Ignition was by means of a high-tension magneto specially geared to give the correct timing, and the working impulses occurred at equal angular intervals of 102.85 degrees. A History of Aeronautics This made the telephone commercial, as the magneto telephone receiver of Bell was too weak to be used as a transmitter commercially. Edison, His Life and Inventions Unfortunately I didn't bring any along for the dynamo and magneto, as I should have done, and I can't get the necessary pieces in a small town. Tom Swift and His Air Glider, or Seeking the Platinum Treasure Make sketch of Bell's original magneto telephone without permanent magnets. Cyclopedia of Telephony & Telegraphy Vol. 1 A General Reference Work on Telephony, etc. etc. See if magneto cables are in good condition. Aviation Engines Design?Construction?Operation and Repair 2011-12-04T03:00:04.777Z Dual ignition was fitted in each cylinder, coil and accumulator being used for starting and as a reserve in case of failure of the high-tension magneto system fitted for normal running. A History of Aeronautics In 1875 Bell, who as a student and teacher of vocal physiology had unusual qualifications for determining feasible methods of speech transmission, constructed his first pair of magneto telephones for such a purpose. Edison, His Life and Inventions The magneto of an aeroplane performs a service similar to one in an automobile. Tom Swift and His Air Glider, or Seeking the Platinum Treasure Give the fundamental differences between the magneto transmitter and the carbon transmitter. Cyclopedia of Telephony & Telegraphy Vol. 1 A General Reference Work on Telephony, etc. etc. The wires leading from the ignition switch must be properly connected—one end to the motor body for ground, and the other end to the post on the breaker box of the magneto. Aviation Engines Design?Construction?Operation and Repair 2011-12-04T03:00:04.777Z There are two suction and one pressure type oil pumps driven through gears at half-engine speed, and two 12 spark magnetos, giving 2 sparks in each cylinder. A History of Aeronautics All through this formative period Bell had adhered to and introduced the magneto form of telephone, now used only as a receiver, and very poorly adapted for the vital function of a speech-transmitter. Edison, His Life and Inventions The dynamo and magneto were doing much more efficient work since Tom had put the new platinum in, and the Falcon was making better time than ever before. Tom Swift and His Air Glider, or Seeking the Platinum Treasure How may a pulsating current be derived from a magneto generator? Cyclopedia of Telephony & Telegraphy Vol. 1 A General Reference Work on Telephony, etc. etc. See if magnetos are bolted on tight and wired. Aviation Engines Design?Construction?Operation and Repair 2011-12-04T03:00:04.777Z Ignition of the engine is by means of two Bosch ZH6 magnetos, driven at a speed of 2,175 revolutions per minute when the engine is running at its normal speed of 1,450 revolutions. A History of Aeronautics The type of magneto used is the Bosch D.V.4, there being one magneto for each line of cylinders. British Airships, Past, Present, and Future The two lads frantically began work, and they soon had the magneto in running order. Tom Swift and His Air Glider, or Seeking the Platinum Treasure Show diagram of the Stromberg-Carlson magneto desk telephone circuit and describe its working. Cyclopedia of Telephony & Telegraphy Vol. 1 A General Reference Work on Telephony, etc. etc. In the eight-cylinder designs ignition is effected by a magneto giving four sparks per revolution and is accordingly driven at engine speed. Aviation Engines Design?Construction?Operation and Repair 2011-12-04T03:00:04.777Z Two carburettors are fitted, and two two-spark magnetos, running at one and three-quarters engine speed. A History of Aeronautics In the older French Renaults the Bosch H.L.8 is used, one magneto supplying the current to all the plugs. British Airships, Past, Present, and Future I took a magneto off an old car and changed the wiring in the inside so it would put out an alternating current instead of a jump spark. The Life of Me; an autobiography The foregoing sequence of operations while described particularly with respect to magneto switchboards is, with certain modifications, typical of the operation of nearly all manual switchboards. Cyclopedia of Telephony & Telegraphy Vol. 1 A General Reference Work on Telephony, etc. etc. The weight, including carburetor, two magnetos, propeller hub, starting magneto and crank, but without radiator, water or oil or exhaust pipes, is 445 pounds. Aviation Engines Design?Construction?Operation and Repair 2011-12-04T03:00:04.777Z Ignition was by means of a high-tension magneto, and long induction pipes connected the-ends of the cylinders to the carburettor, the latter being placed underneath the engine. A History of Aeronautics Upon the shelf she arranged a tin of singe—the French bully beef—a gilt box of powder, a toothbrush, a comb, a map, a packet of letters to be answered, and a magneto spanner. The Happy Foreigner The spark—let's see- -can't get to the spark plug wires, but I can get to the magneto. The Life of Me; an autobiography Coming now to the commercial types of switchboard apparatus, the first subject that presents itself is that of magneto line signals or drops. Cyclopedia of Telephony & Telegraphy Vol. 1 A General Reference Work on Telephony, etc. etc. The magnetos are geared up in the proportion of 4 to 7. Aviation Engines Design?Construction?Operation and Repair 2011-12-04T03:00:04.777Z Ignition was by means of the usual high-tension magneto, gear-driven from the crankshaft, and the engine, which was water-cooled, was of compact design. A History of Aeronautics In the early attempts at magneto electric machines, it was shown that, so long as their effect depended upon the oxidation of zinc in a battery, no commercially useful results could have been anticipated. Scientific American Supplement, No. 384, May 12, 1883 The same old Dodge that ran over Albert and killed the hen for supper had a magneto that kept giving trouble, and it cost a fortune to have it repaired each time. The Life of Me; an autobiography There has been a tendency on the part of some manufacturing companies to advocate, instead of drop signals, incandescent lamp signals for the cord circuits, and sometimes for the line circuits on magneto boards. Cyclopedia of Telephony & Telegraphy Vol. 1 A General Reference Work on Telephony, etc. etc. The high-tension collector brush of the magneto is connected to a distributor brush holder carried in the bearer plate of the engine. Aviation Engines Design?Construction?Operation and Repair 2011-12-04T03:00:04.777Z A few Russian aircraft factories were got into operation as hostilities proceeded, but their products were negligible, and it is not on record that Russia ever learned to manufacture a magneto. A History of Aeronautics The main thing is the engine, and so far as I can judge, that's pretty nearly O. K. The magneto may have to be gone over, but that's a mere trifle. Darkness and Dawn Then water got up over the magneto, then over the spark plugs, and the motor never missed a shot. The Life of Me; an autobiography Give diagram of the complete circuit of a simple magneto switchboard. Cyclopedia of Telephony & Telegraphy Vol. 1 A General Reference Work on Telephony, etc. etc. After the cylinders are removed and before taking the crank-case apart it is well to remove the water pump and magneto. Aviation Engines Design?Construction?Operation and Repair 2011-12-04T03:00:04.777Z The engine was a 35 horsepower Vee design, water cooled, with overhead inlet and exhaust valves, and Bosch high-tension magneto ignition. A History of Aeronautics There is one exception," he continued, "to this principle, and that is a speedometer which depends upon the introduction of resistance into a current generated by a small magneto. First and Last Two clips held the back end of the magneto on. The Life of Me; an autobiography Recall Lamp:—The Monarch Company sometimes furnishes what it terms a recall lamp in connection with the clearing-out drops on its magneto switchboards. Cyclopedia of Telephony & Telegraphy Vol. 1 A General Reference Work on Telephony, etc. etc. While magneto ignition is generally used on airplane engines, there is apt to be some development of battery ignition, especially on engines equipped with electric self-starters which are now being experimented with. Aviation Engines Design?Construction?Operation and Repair 2011-12-04T03:00:04.777Z Ignition is by two high-tension magnetos, and a compressed air self-starting arrangement is provided. A History of Aeronautics The speed of the moving work had to be carefully tried out; in the fly-wheel magneto we first had a speed of sixty inches per minute. My Life and Work Now, the Ford mechanic only knew how to set the points for a strong magneto, and this mag was weak. The Life of Me; an autobiography There seems to be absolutely no good reason why lamp signals should be substituted for mechanical drops in magneto switchboards. Cyclopedia of Telephony & Telegraphy Vol. 1 A General Reference Work on Telephony, etc. etc. Both of these should be installed in the pilot’s seat, one controlling the R. H., and the other the L. H. magneto. Aviation Engines Design?Construction?Operation and Repair 2011-12-04T03:00:04.777Z I think he's probably disconnected the wires of the magneto — that's what I'd do if I wanted to put a motor out of business in a hurry. The Boy Scout Aviators We had previously assembled the fly-wheel magneto in the usual method. My Life and Work One farmer had a Model T Ford that had a weak magneto. The Life of Me; an autobiography An excellent idea of the grouping of the various pieces of apparatus in a complete simple magneto switchboard may be had from Fig. Cyclopedia of Telephony & Telegraphy Vol. 1 A General Reference Work on Telephony, etc. etc. By shorting either one or the other it can be quickly determined if both magnetos, with their respective spark-plugs, are working correctly. Aviation Engines Design?Construction?Operation and Repair 2011-12-04T03:00:04.777Z I may run the car into Katchogue"—Katchogue, seven miles away, was the site of the nearest garage—"and have that fellow look at my magneto. The Heart of Rachael The ignition was by dry batteries in all excepting "Model B," which had storage batteries, and in "Model K" which had both battery and magneto. My Life and Work Fifteen minutes later the man drove away with his car running like a new one—on the magneto. The Life of Me; an autobiography We may now discuss the circuits of a complete simple magneto switchboard. Cyclopedia of Telephony & Telegraphy Vol. 1 A General Reference Work on Telephony, etc. etc. Every four days the magnetos should be oiled if the engine is in daily use. Aviation Engines Design?Construction?Operation and Repair 2011-12-04T03:00:04.777Z I'll have Eradicate fill up the gasolene tank, while I look at the magneto. Tom Swift in Captivity, or a Daring Escape By Airship In the present model, the magneto is a part of the power plant and is built in. My Life and Work Perhaps the neighbor's phone had a stronger magneto, or perhaps two or three of us ringing at the same time might send a stronger current and get through to her. The Life of Me; an autobiography The device is merely one form of magneto telephone chosen to illustrate the point of immediate conversion. Cyclopedia of Telephony & Telegraphy Vol. 1 A General Reference Work on Telephony, etc. etc. If the gears are properly marked the valve timing and magneto setting will be undisturbed when the parts are replaced after overhauling. Aviation Engines Design?Construction?Operation and Repair 2011-12-04T03:00:04.777Z "There, I guess that will do," remarked Tom, after testing the magneto, and finding that it gave a fat, hot spark. Tom Swift in Captivity, or a Daring Escape By Airship We tried it on assembling the flywheel magneto. My Life and Work It had no battery; a magneto fired the plugs to make the engine run and a presto gas tank on one running board furnished gas for the headlights. The Life of Me; an autobiography The terms magneto-electric, magneto-generator, etc., involving the term "magneto," have come to imply the presence of permanently magnetized steel as an element of the construction. Cyclopedia of Telephony & Telegraphy Vol. 1 A General Reference Work on Telephony, etc. etc. There seems to be some development in the direction of battery ignition so it has been considered desirable to include components of these systems as well as the almost universally used magneto group. Aviation Engines Design?Construction?Operation and Repair 2011-12-04T03:00:04.777Z It contained the magneto of his aeroplane and he was putting waterproof paper about it. Tom Swift in Captivity, or a Daring Escape By Airship The positive mind and will are to the body what the magneto is to the automobile. Nature Cure The magneto was out of order and the batteries needed renewing, while the spark coil had short-circuited and took considerable time to adjust. Tom Swift and His Motor-Boat, or, the Rivals of Lake Carlopa The modifications which have been made in the original magneto telephone, practically as shown in Fig. Cyclopedia of Telephony & Telegraphy Vol. 1 A General Reference Work on Telephony, etc. etc. If an airplane engine is provided with magneto ignition solely, as most engines are at the present time, no attention need be paid to such items as storage or dry batteries, timer or induction coil. Aviation Engines Design?Construction?Operation and Repair 2011-12-04T03:00:04.777Z I ought to get a few hundred more revolutions per minute out of the motor with the way I've adjusted the magneto. Tom Swift in Captivity, or a Daring Escape By Airship He said he was going to try out a new magneto he'd invented, and it seems to be working all right. Tom Swift and His Giant Cannon, or, the Longest Shots on Record He overhauled the ignition system, which was the jump-spark style, cleaned the magneto and adjusted the gasoline and compression taps so that they fitted better. Tom Swift and His Motor-Boat, or, the Rivals of Lake Carlopa For reasons not finally established, the ability of the magneto telephone to produce large currents from large sounds is not equal to its ability to produce large sounds from large currents. Cyclopedia of Telephony & Telegraphy Vol. 1 A General Reference Work on Telephony, etc. etc. Set points 1⁄64′′ apart for magneto, 1⁄32′′ for battery spark. Aviation Engines Design?Construction?Operation and Repair 2011-12-04T03:00:04.777Z Bud swore a little and got out more tools and went after the magneto with grim determination. Cabin Fever So far I've only had light shocks, but the insulation is burning out of my magneto, and that will soon stop. Tom Swift and His Giant Cannon, or, the Longest Shots on Record Andy's ignition system failed him several times and he changed from batteries to magneto and back again in the hope of getting a little more speed out of the motor. Tom Swift and His Motor-Boat, or, the Rivals of Lake Carlopa On the other hand, the differences between wall telephones and desk telephones are principally structural, and obviously either of these types of telephones may be for common-battery or magneto work. Cyclopedia of Telephony & Telegraphy Vol. 1 A General Reference Work on Telephony, etc. etc. In this chart all parts of a typical double ignition system using battery and magneto current are shown and suggestions are given for readily finding ignition troubles and eliminating them when found. Aviation Engines Design?Construction?Operation and Repair 2011-12-04T03:00:04.777Z In the twelve-cylinder machine two magnetos of the ordinary revolving armature or two-spark type, each supplying six cylinders, are fitted as outlined at Fig. Aviation Engines Design?Construction?Operation and Repair 2011-12-04T03:00:04.777Z Among other things he had just perfected a new style of magneto for one of his airships. Tom Swift and His Giant Cannon, or, the Longest Shots on Record The upper half is simple and provides magneto supports on extension ledges of the two main faces. Aviation Engines Design?Construction?Operation and Repair 2011-12-04T03:00:04.777Z Page 120 Another form of armature largely employed in recent magneto generators is illustrated in Fig. Cyclopedia of Telephony & Telegraphy Vol. 1 A General Reference Work on Telephony, etc. etc. The oil pump is external on magneto end of motor, and is very accessible. Aviation Engines Design?Construction?Operation and Repair 2011-12-04T03:00:04.777Z Should one magneto fail, the other would still run the engine at only a slight loss in power. Aviation Engines Design?Construction?Operation and Repair 2011-12-04T03:00:04.777Z He was trying out this magneto in the Humming Bird when the accident I have related in the first chapter occurred. Tom Swift and His Giant Cannon, or, the Longest Shots on Record This supply oils the magneto and pump gears. Aviation Engines Design?Construction?Operation and Repair 2011-12-04T03:00:04.777Z With this structure in mind, the theory of the magneto generator developed in connection with Fig. Cyclopedia of Telephony & Telegraphy Vol. 1 A General Reference Work on Telephony, etc. etc. Ignition is by two Bosch magnetos, each on a separate set of plugs fired simultaneously on opposite sides of the cylinders. Aviation Engines Design?Construction?Operation and Repair 2011-12-04T03:00:04.777Z The water and oil pumps, carburetors, magnetos, oil strainer or other parts can be removed without disturbing other parts. Aviation Engines Design?Construction?Operation and Repair 2011-12-04T03:00:04.777Z The magneto, as you know, is a sort of small dynamo, that supplies the necessary spark to the cylinder, to explode the mixture of air and gasoline vapor. Tom Swift and His Giant Cannon, or, the Longest Shots on Record There is a gear which serves to drive the magnetos and tachometer, also the air pump. Aviation Engines Design?Construction?Operation and Repair 2011-12-04T03:00:04.777Z Instead of developing the necessary magnetic field by means of electromagnets, as in the case of the ordinary dynamo, the field of the magneto generator is developed by permanent magnets, usually of the horseshoe form. Cyclopedia of Telephony & Telegraphy Vol. 1 A General Reference Work on Telephony, etc. etc. Four magnetos are used, two for each set of six cylinders. Aviation Engines Design?Construction?Operation and Repair 2011-12-04T03:00:04.777Z In this diagram all parts of a typical double ignition system using battery and magneto current are shown, and suggestions are given for readily finding ignition troubles and eliminating them when found. Aviation Engines Design?Construction?Operation and Repair 2011-12-04T03:00:04.777Z All types of starting motors, generators, magnetos, and all ignition or lighting system-units are fully explained. Aviation Engines Design?Construction?Operation and Repair 2011-12-04T03:00:04.777Z In the practical construction of magneto generators more than one bar magnet is used, and, in addition, the conductors in the armature are so arranged as to include a great many loops of wire. Cyclopedia of Telephony & Telegraphy Vol. 1 A General Reference Work on Telephony, etc. etc. This simpler form of bell is commonly known as the polarized, or magneto, bell or ringer. Cyclopedia of Telephony & Telegraphy Vol. 1 A General Reference Work on Telephony, etc. etc. The magnetos are very accessibly located on a bracket on the spur gear cover. Aviation Engines Design?Construction?Operation and Repair 2011-12-04T03:00:04.777Z The polarized bell or ringer is, as has been stated, the device which is adapted to respond to the currents sent out by the magneto generator. Cyclopedia of Telephony & Telegraphy Vol. 1 A General Reference Work on Telephony, etc. etc. The symbols for magneto or hand generators usually embody a simplified side view, showing the crank and the gears on one side Page 128 and the shunting or other switching device on the other. Cyclopedia of Telephony & Telegraphy Vol. 1 A General Reference Work on Telephony, etc. etc. Carbon and magneto transmitters differ wholly in their methods of action. Cyclopedia of Telephony & Telegraphy Vol. 1 A General Reference Work on Telephony, etc. etc. In the early days of telephony there was nearly always associated with each polarized bell a magneto generator for furnishing the proper kind of current to ring such bells. Cyclopedia of Telephony & Telegraphy Vol. 1 A General Reference Work on Telephony, etc. etc. It is worthy of note that with this independent double magneto system, one complete magneto can become inoperative, and still the motor will run and continue to give good power. Aviation Engines Design?Construction?Operation and Repair 2011-12-04T03:00:04.777Z This is still done, and necessarily so, in receivers employed in connection with magneto telephones. Cyclopedia of Telephony & Telegraphy Vol. 1 A General Reference Work on Telephony, etc. etc. This desk stand evidently does not comprise the complete equipment for a magneto desk-telephone set, since the generator, polarized bell, and battery are lacking. Cyclopedia of Telephony & Telegraphy Vol. 1 A General Reference Work on Telephony, etc. etc. In the magneto desk-telephone sets, the so-called desk stand, containing the transmitter, the receiver, and the hook switch, with the standard upon which they are mounted, is shown in Fig. Cyclopedia of Telephony & Telegraphy Vol. 1 A General Reference Work on Telephony, etc. etc. The magneto generator is about the simplest type of dynamo-electric machine, and it depends upon the same principles of operation as the much larger generators, employed in electric-lighting and street-railway power plants, for instance. Cyclopedia of Telephony & Telegraphy Vol. 1 A General Reference Work on Telephony, etc. etc. At the present time all airplane engines use high tension ignition systems, the magneto being the most popular at the present time. Aviation Engines Design?Construction?Operation and Repair 2011-12-04T03:00:04.777Z A great variety of arrangements of the various parts of magneto desk-telephone apparatus is employed in practice. Cyclopedia of Telephony & Telegraphy Vol. 1 A General Reference Work on Telephony, etc. etc. The term magneto telephone, as it was originally employed in telephony, referred to the type of instrument now known as a receiver, particularly when this was used also as a transmitter. Cyclopedia of Telephony & Telegraphy Vol. 1 A General Reference Work on Telephony, etc. etc. Owing to the fact that common-battery telephones contain no sources of current, they are usually somewhat simpler than the magneto type. Cyclopedia of Telephony & Telegraphy Vol. 1 A General Reference Work on Telephony, etc. etc. In the so-called common-battery telephones, where no magneto generator or local battery is included in the equipment at the subscriber's station, the mere raising of the hook serves another important function. Cyclopedia of Telephony & Telegraphy Vol. 1 A General Reference Work on Telephony, etc. etc. The current distribution and timing devices used with modern battery systems are practically the same as similar parts of a magneto. Aviation Engines Design?Construction?Operation and Repair 2011-12-04T03:00:04.777Z Telephones may be classified under two general headings, magneto telephones and common-battery telephones, according to the character of the systems in which they are adapted to work. Cyclopedia of Telephony & Telegraphy Vol. 1 A General Reference Work on Telephony, etc. etc. |
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