| 单词 | bushing |
| 例句 | The combine has broken down for the third time in as many days, and Westerberg is frantically trying to replace a hard-to-reach bushing before nightfall. Into the Wild 1996-01-01T00:00:00Z Eventually, James finally stopped bushing against the muscleman and crossed his arms, pouting. But where was James Franco? 2011-02-14T14:13:00Z Ukrainian power authorities have said the equipment they urgently need includes circuit breakers, bushings and transformer oil, along with the “high-tech and high-cost” autotransformers, which can weigh more than 500 pounds. U.S. unveils plan to rebuild Ukraine energy grid after Russian assault 2022-11-29T05:00:00Z A list of “urgent needs” from DTEK, the country’s largest private energy company, circulating in Washington lists dozens of transformers along with circuit breakers, bushings and transformer oil. Ukrainian energy systems on brink of collapse after weeks of Russian bombing 2022-11-23T05:00:00Z In that case, a safety recall report said “heat and humidity have the potential to contribute to the hydrological breakdown of the bushing material.” Nissan Recalls Over 203,000 Pickups That May Roll Away While Parked 2022-09-19T04:00:00Z The National Highway Traffic Safety Administration says in documents posted on its website Wednesday that a bushing that attaches the shifter cable to the transmission can degrade or detach. Ford recalls over 2.9M vehicles at risk of roll away crashes 2022-06-15T04:00:00Z "Although claim rates and projected failures remained low, Ford recommended a safety recall for the remaining vehicles in North America" with the specific shift cable bushing. Ford recalls nearly 3 million U.S. vehicles over rollaway concerns- 2022-06-15T04:00:00Z Depending on the model, dealers will replace a bushing and the axle cover, or they will update electronic parking brake software. Ford recalls Explorer SUVs that can roll away while in park 2022-04-29T04:00:00Z In another, no risk assessment was done for a plane that had missing engine bushings and improperly installed struts holding the engines in place. Watchdog finds flaws in FAA oversight of American Airlines 2021-10-22T04:00:00Z Dealers will replace the bushing and add a protective cap. Ford recalls small vans; shifter may not show correct gear 2021-05-27T04:00:00Z “Aside from age, the freeze-thaw cycle — expansion/contraction — does a number on wire insulation and rubber/plastic bushings,” he wrote. Perspective | Skyrocketing repair costs or rust? It may be time to buy a new car. 2019-10-31T04:00:00Z A damaged or missing shift cable bushing may prevent the vehicle from shifting into the intended gear or the vehicle may roll after the driver selects the 'Park' position. Ford recalls nearly 3 million U.S. vehicles over rollaway concerns- 2022-06-15T04:00:00Z The company said a cable bushing may degrade after prolonged exposure to high ambient heat and humidity. Fiat Chrysler recalls 320,000 Dart cars that could roll away 2019-04-19T04:00:00Z Dealers will replace the bushing at no cost to owners. Fiat Chrysler recalls over 300K cars due to rollaway risk 2019-04-19T04:00:00Z The Pentagon Inspector General performed a cost analysis and determined that the Defense Logistics Agency paid 1,049 percent over the fair and reasonable price for the bushing used on military helicopters. Air Force squadron spends $56,000 on metal coffee cups 2018-09-26T04:00:00Z Ford says a bushing that attaches the shifter cable to the transmission can fall off. Government audit faults oversight in auto recalls 2018-07-18T04:00:00Z Dealers will replace the under hood shift bushing and add a protective cap. Ford recalls nearly 3 million U.S. vehicles over rollaway concerns- 2022-06-15T04:00:00Z Seeing the bushing, poplin-skirted women captured around Jack Nicklaus in a portrait made it easier to imagine us modern girls being photographed for the memory of new generations. The Masters through the eyes of a 16-year-old from India 2018-04-04T04:00:00Z Underneath, the front strut and rear air suspension has been reinforced with more rigid bearings and firmer bushings, increased front camber, higher damper rates, and other changes to the “elastokinematics.” BMW X6 M: A Powerful Sports Car That Fails to Deliver 2015-08-07T04:00:00Z A 2014 audit found that the Defense Logistics Agency paid 1,049 percent over the “fair and reasonable” price” for a bushing used on military helicopters, Fine said. Air Force squadron spends $56,000 on metal coffee cups 2018-09-26T04:00:00Z S S are non-magnetic bushings secured or set in the central opening of the cores. The inventions, researches and writings of Nikola Tesla With special reference to his work in polyphase currents and high potential lighting 2012-03-28T02:00:22.660Z A bushing in the hub of a wheel, through which the axle passes. Webster's Unabridged Dictionary (2nd 100 Pages) 2012-03-24T02:00:19.387Z This arrangement, simple and yet substantial, dispenses with the two eccentric-armed bushings, and the spreading of the upright rod at the top to reach both bushings, which caused so much trouble in the old way. Modern Machine-Shop Practice, Volumes I and II 2012-03-23T02:00:33.140Z Then as he called to Anthea to move the team a pace or two, the patent bushing squeaked and groaned, and the wheel, after making part of a revolution, skidded on the road. Thrice Armed 2012-02-03T03:00:24.970Z The overheating may lead to the binding of frictional surfaces and even to the fusion of bushings if they be lined with anti-friction metal. 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 To remove the cage or bushings, it is only necessary to turn back the cover. Illustrated Catalogue of Cotton Machinery 2011-12-16T03:00:11.130Z Glass is liable to crack, while lava or the soapstone insulating bushings absorb oil. Aviation Engines Design?Construction?Operation and Repair 2011-12-04T03:00:04.777Z The back journal of the spindle runs in a bushing of considerable length. Modern Machine-Shop Practice, Volumes I and II 2012-03-23T02:00:33.140Z Unlike celluloid, Bakelite could be precisely molded and machined into nearly anything, from tubular industrial bushings the size of mustard seeds to full-size coffins. A Brief History of Plastic's Conquest of the World 2011-05-29T14:15:02.467Z They presuppose, however, bearings of large size and a special arrangement of bushings which renders their application somewhat expensive. 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 She was such a little Mother Bunch, with her crinkly red hair bushing out around her fat freckled face,—hardly a likely person to attract a hero of romance. At Boarding School with the Tucker Twins 2011-05-04T02:00:13.920Z It is often desirable to have a water-tight joint between the high-tension cable and the terminal screw on top of the insulating bushing of the spark-plug, especially in marine applications. Aviation Engines Design?Construction?Operation and Repair 2011-12-04T03:00:04.777Z The arm m that supports the two lower feed gears pivots upon the outboard end of the back bushing, hence its centre coincides with that of the spindle. Modern Machine-Shop Practice, Volumes I and II 2012-03-23T02:00:33.140Z The problem occurs if the bushing becomes dislodged. Chrysler Is Recalling Caliber and Compass for Accelerator Pedal Problem 2010-06-04T20:28:00Z We shall assume that the bushing B, Fig. Turning and Boring A specialized treatise for machinists, students in the industrial and engineering schools, and apprentices, on turning and boring methods, etc. Those equipped with roller bearings are holding up longer than those equipped with bushings, but all are gradually failing. The Year When Stardust Fell The type shown at A employs a molded porcelain as an insulator, while that depicted at B uses a bushing of mica. Aviation Engines Design?Construction?Operation and Repair 2011-12-04T03:00:04.777Z The rubber bushing is grooved horizontally to increase the length of the sealing surface. The Automobile Storage Battery Its Care And Repair The drum is simply a hard-wood bushing driven tightly in place. Boys' Book of Model Boats This could be done by forcing a tightly-fitted arbor M, having accurately-centered ends, into the bushing and inserting the mandrel and work between the lathe centers h and h1 as shown. Turning and Boring A specialized treatise for machinists, students in the industrial and engineering schools, and apprentices, on turning and boring methods, etc. It will probably be found that the bushings are not of the right length, due to the alteration of the form of the steam chest by heat. Steam Turbines A Book of Instruction for the Adjustment and Operation of the Principal Types of this Class of Prime Movers The insulating bushings are made in a number of different ways, and while details of construction vary, spark-plugs do not differ essentially in design. Aviation Engines Design?Construction?Operation and Repair 2011-12-04T03:00:04.777Z In assembling the battery, the cover is placed over the post, and the cell connector is burned to both post and bushing. The Automobile Storage Battery Its Care And Repair This consists merely of a brass bushing held in a bracket made of a strip of brass 1/2 inch wide. Boys' Book of Model Boats The bushing forms a bearing for the work and holds it rigidly. Turning and Boring A specialized treatise for machinists, students in the industrial and engineering schools, and apprentices, on turning and boring methods, etc. After the length of the bushings is corrected the shield-plates may be assembled, made fast and tested by rocking them up and down, searching for signs of sticking. Steam Turbines A Book of Instruction for the Adjustment and Operation of the Principal Types of this Class of Prime Movers The secondary wire from the coil is attached to a terminal at the top of a central electrode member, which is supported in a bushing of some form of insulating material. Aviation Engines Design?Construction?Operation and Repair 2011-12-04T03:00:04.777Z On the cell posts there is a. flange which supports the cover, and above this there is a recessed portion into which is slipped a soft rubber sleeve or bushing. The Automobile Storage Battery Its Care And Repair The brass strip is wound around the bushing and soldered. Boys' Book of Model Boats Whether a bushing or jaws are used, the turning tool is slightly in advance of the supporting member. Turning and Boring A specialized treatise for machinists, students in the industrial and engineering schools, and apprentices, on turning and boring methods, etc. It will generally be found also that the bushings are too short, and that the length can be corrected by very thin washers of sheet metal. Steam Turbines A Book of Instruction for the Adjustment and Operation of the Principal Types of this Class of Prime Movers The plunger shown at B is left free to revolve in the guide bushing and is provided with a flat mushroom head which serves as a cam follower. Aviation Engines Design?Construction?Operation and Repair 2011-12-04T03:00:04.777Z U. S. L. batteries have a flanged lead bushing which is moulded directly into the cover, as shown in Fig. The Automobile Storage Battery Its Care And Repair A piece of brass tubing is then cut off with a hacksaw to form a brass bushing. Boys' Book of Model Boats These bushings are rough-turned on the outside while the outer end is supported by the cross-shaped piece or “spider” which forms a center-bearing for the tailstock. Turning and Boring A specialized treatise for machinists, students in the industrial and engineering schools, and apprentices, on turning and boring methods, etc. At night, to stop the vibration of the rudder, I knocked in a brass wedge between its head and the iron bushing of the rudder hole. The Voyage Alone in the Yawl "Rob Roy" The pressure which might be employed in obtaining useful turning effort is wasted by causing a direct pressure upon the lower half of the main bearing and the upper half of the crank-pin bushing. Aviation Engines Design?Construction?Operation and Repair 2011-12-04T03:00:04.777Z Some of the batteries which use sealing compound to make a tight joint between the cover and the post have a hard rubber bushing shrunk over the post. The Automobile Storage Battery Its Care And Repair Particular attention must be paid to this, or the whole work may be spoilt and a fresh block or bushing of the hole be found necessary, and much of your work to be done again. The Repairing & Restoration of Violins 'The Strad' Library, No. XII. A symmetrically shaped casting like a bushing or lining is often held upon wooden blocks bolted across the carriage. Turning and Boring A specialized treatise for machinists, students in the industrial and engineering schools, and apprentices, on turning and boring methods, etc. The operation of placing it in the wood is called bushing or coaking, though the last name is usually given to smaller bushes of a square shape. The Sailor's Word-Book An Alphabetical Digest of Nautical Terms, including Some More Especially Military and Scientific, but Useful to Seamen; as well as Archaisms of Early Voyagers, etc. When these members are an integral part of the cylinder the only method of compensating for this wear is to drill the guide out and fit a bushing, which may be made of steel tube. Aviation Engines Design?Construction?Operation and Repair 2011-12-04T03:00:04.777Z The stem of the bushing fits down into the post hole in the cover, the flange at the top testing on the raised portion of the cover around the post hole. The Automobile Storage Battery Its Care And Repair Concerning the refilling or "bushing" as it is termed of the peg-holes, a few words may not be out of place. The Repairing & Restoration of Violins 'The Strad' Library, No. XII. A good general rule to follow when locating bushings or buttons is to use the method which is the most direct and which requires the least number of measurements. Turning and Boring A specialized treatise for machinists, students in the industrial and engineering schools, and apprentices, on turning and boring methods, etc. If neither ashes nor guano can be obtained at a reasonable price, sow two hundred pounds of gypsum per acre as soon as the bushing is completed. The $100 Prize Essay on the Cultivation of the Potato. Prize offered by W. T. Wylie and awarded to D. H. Compton. How to Cook the Potato, Furnished by Prof. Blot. Where the connecting rod is clamped to the wrist pin and that member oscillates in the piston bosses the wear will usually be indicated on bronze bushings which are pressed into the piston bosses. Aviation Engines Design?Construction?Operation and Repair 2011-12-04T03:00:04.777Z This forces the soft rubber washer tightly against the cover so as to make a leak proof joint-between the bushing and cover. The Automobile Storage Battery Its Care And Repair No one could tell us anything about packing, bushing in a slough or managing a pack-train. A Daughter of the Middle Border This type, instead of being solid, consists of a tapering inner arbor M on which is placed a split bushing that can be expanded, within certain limits, by driving in the tapering member. Turning and Boring A specialized treatise for machinists, students in the industrial and engineering schools, and apprentices, on turning and boring methods, etc. The growing crop may be supported by staking or bushing, as practised with pease; or the taller-growing sorts may be shortened in, which will induce a strong, stocky habit of growth. The Field and Garden Vegetables of America Containing Full Descriptions of Nearly Eleven Hundred Species and Varietes; With Directions for Propagation, Culture and Use. If no bushings are provided, as in alloy pistons, the bosses can sometimes be bored out and thin bushings inserted, though this is not always possible. Aviation Engines Design?Construction?Operation and Repair 2011-12-04T03:00:04.777Z Insulation between the posts and cover is provided by a hard rubber bushing, a hard rubber washer, and a soft rubber washer. The Automobile Storage Battery Its Care And Repair Certain steels have a very low rate of expansion and contraction in hardening and are very desirable for test plugs, gages, punches and dies, for milling cutters, taps, reamers, hard steel bushings and similar work. The Working of Steel Annealing, Heat Treating and Hardening of Carbon and Alloy Steel The advantage of this type is that a comparatively small stock of arbors is required, as different-sized bushings can be used. Turning and Boring A specialized treatise for machinists, students in the industrial and engineering schools, and apprentices, on turning and boring methods, etc. Steam and exhaust ports are cut through this bushing; steam ports to the cylinder and exhaust port to the exhaust pipe. The Traveling Engineers' Association To Improve The Locomotive Engine Service of American Railroads The nine steel connecting rods are machined all over and are fitted at each end with bronze bushings, the distance between the bearing centers being about 3.25 times crank length. Aviation Engines Design?Construction?Operation and Repair 2011-12-04T03:00:04.777Z The bushing is shaped like a "T" with a hole drilled in the stem. The Automobile Storage Battery Its Care And Repair If the bushing cloth is found to be badly worn, it is better to put in new, which must be done neatly, or the result will not be satisfactory. Piano Tuning A Simple and Accurate Method for Amateurs Some follow-rests have, instead of jaws, a bushing bored to fit the diameter being turned, different bushings being used for different diameters. Turning and Boring A specialized treatise for machinists, students in the industrial and engineering schools, and apprentices, on turning and boring methods, etc. It is adapted to the larger gun by introducing two steel bushing rings fitted into the cheeks of carriage to secure the trunnion of the gun. Scientific American Supplement, No. 561, October 2, 1886 In this construction bushings of anti-friction metal are used at the lower end, and a bronze bushing is forced into the upper- or wrist-pin end. Aviation Engines Design?Construction?Operation and Repair 2011-12-04T03:00:04.777Z U. S. L. batteries have lead bushings moulded into the cover. The Automobile Storage Battery Its Care And Repair This central core of steel is carefully insulated from the outer shell of the plug by means of hard rubber bushings, the parts being forced tightly together. Cyclopedia of Telephony & Telegraphy Vol. 1 A General Reference Work on Telephony, etc. etc. The tailstock fixture is also adjustable and it is mounted on a spindle which revolves in a bushing in the tailstock barrel. Turning and Boring A specialized treatise for machinists, students in the industrial and engineering schools, and apprentices, on turning and boring methods, etc. Holes are drilled through the frame and brass bushings, H and J, are fitted for bearings to receive the adjusting brass rod, B, which should be 1/4 in. in diameter. The Boy Mechanic: Volume 1 700 Things for Boys to Do A bronze bushing is fitted in the upper end of the rod, but no bushing is fitted in the pistons, the hardened steel wrist-pins making an excellent bearing in the aluminum alloy. Aviation Engines Design?Construction?Operation and Repair 2011-12-04T03:00:04.777Z These bushings fit around the posts, and are burned to the posts and top connectors, Figs. The Automobile Storage Battery Its Care And Repair The rod, forming the terminal of the zinc, passes through a porcelain bushing on the cover plate to obviate short circuits. Cyclopedia of Telephony & Telegraphy Vol. 1 A General Reference Work on Telephony, etc. etc. This scheme is so named because cylindrical bushings or buttons are attached to the work in positions corresponding to the holes to be bored, after which they are used in locating the work. Turning and Boring A specialized treatise for machinists, students in the industrial and engineering schools, and apprentices, on turning and boring methods, etc. After luncheon the machine was run into a machine shop, and three hours were spent in taking up the lost motion in the eccentric strap, at the crank-pin, and in a loose bushing. Two Thousand Miles on an Automobile Being a Desultory Narrative of a Trip Through New England, New York, Canada, and the West, By "Chauffeur" The rods complete with bushings weigh 51⁄2 pounds each. Aviation Engines Design?Construction?Operation and Repair 2011-12-04T03:00:04.777Z In burning on the connectors, melt bottom edge of hole first, then top of post and cover bushing, and melt in your burning lead slowly. The Automobile Storage Battery Its Care And Repair This tongue is insulated from the disk 4', where it passes through it, by means of insulating bushing, as shown. Cyclopedia of Telephony & Telegraphy Vol. 1 A General Reference Work on Telephony, etc. etc. The revolving fixture is accurately indexed for locating different crank-pins in line with the lathe centers, by a hardened steel plunger in the slide which engages with hardened bushings in the fixture. Turning and Boring A specialized treatise for machinists, students in the industrial and engineering schools, and apprentices, on turning and boring methods, etc. The links are of wrought iron, with cast bushings. Scientific American Supplement, No. 595, May 28, 1887 The valves are of large diameter with hollow stems, working in cast iron bushings. Aviation Engines Design?Construction?Operation and Repair 2011-12-04T03:00:04.777Z Some of the old Prest-O-Lite batteries have a lead bushing around the post, Fig. The Automobile Storage Battery Its Care And Repair He always said splitting rails, bushing, plowing and work like that was for men. Slave Narratives: a Folk History of Slavery in the United States From Interviews with Former Slaves Arkansas Narratives, Part 1 After roughing the outside, the inside is bored to the finish size; then centered disks, which fit into the bore, are placed in the ends of the bushing and the latter is finish-turned. Turning and Boring A specialized treatise for machinists, students in the industrial and engineering schools, and apprentices, on turning and boring methods, etc. Iridium, as an alloy with platinum, is used in bushing the vents of heavy ordnance. The Gutenberg Webster's Unabridged Dictionary Section I, J, K, and L The piston end is fitted with a gun metal bushing, while the crank-pin end carries two bronze serrated shells, which are tinned and babbitted hot, being broached to harden the babbitt. Aviation Engines Design?Construction?Operation and Repair 2011-12-04T03:00:04.777Z This will make a perfectly tight seal, provided that you screw the bushing up tight. The Automobile Storage Battery Its Care And Repair He had the Roman nose, narrow forehead, bushing brows, and sharply-cut mouth and chin of a soldier grown old in the contemplation of portraits of the Duke of Wellington. The Market-Place The adjustment is obtained in the same manner as on the headstock fixture, and removable split bushings as well as a hinged clamp are also employed. Turning and Boring A specialized treatise for machinists, students in the industrial and engineering schools, and apprentices, on turning and boring methods, etc. The last great improvement in connection with the screw remains to be noticed, namely, lining the "bushings" and "bearings" with lignum-vitae,—the invention of Mr. Penn, of Greenwich, near London. The Atlantic Monthly, Volume 05, No. 29, March, 1860 It is used for bearings and bushings where the speeds are slow and the loads rather heavy for the bearing size. 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 To make it perfectly safe, they surrounded the wire, where it passed through the scuttle and ceiling, with a fire proof asbestos bushing or sleeve. The Radio Boys' First Wireless Or Winning the Ferberton Prize The voice was oily and persuasive, but the keen gray eyes shot out a glance from under the bushing eyebrows that thrilled me as a warning. Blindfolded One of these is located in the head and enters a bushing in the large faceplate and the other is in the tailstock and engages the tailstock fixture. Turning and Boring A specialized treatise for machinists, students in the industrial and engineering schools, and apprentices, on turning and boring methods, etc. They need bushing, but I have never found a variety of decent quality that does not. Home Vegetable Gardening — a Complete and Practical Guide to the Planting and Care of All Vegetables, Fruits and Berries Worth Growing for Home Use Bronze is used for bearings, bushings, thrust washers, brackets and gear wheels. 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 see a tall, strong man, whose wide-domed head was covered with wavy black hair, bushing out at the sides. Hawthorne and His Circle To this the young king answered well, and lost no time in bushing his men and himself. The Book of the Thousand Nights and a Night — Volume 13 This type of press can also be used for other purposes, such as forcing bushings or pins into or out of holes, bending or straightening parts, or for similar work. Turning and Boring A specialized treatise for machinists, students in the industrial and engineering schools, and apprentices, on turning and boring methods, etc. The labor of bushing and grubbing these acres of lowland was no light one. Hiram the Young Farmer The forward end of the bar is small enough to enter a bell-mouthed bushing held in the chuck. Turning and Boring A specialized treatise for machinists, students in the industrial and engineering schools, and apprentices, on turning and boring methods, etc. While these last operations are performed, the work is supported by a bushing on a supporting arbor J, which enters the bore of the wheel. Turning and Boring A specialized treatise for machinists, students in the industrial and engineering schools, and apprentices, on turning and boring methods, etc. Next, the hole is reamed with taper reamer q, the pilot of which is supported by bushing r. Turning and Boring A specialized treatise for machinists, students in the industrial and engineering schools, and apprentices, on turning and boring methods, etc. The revolving fixture is equipped with removable split bushings which can be replaced to fit the line bearings of different sized crankshafts. Turning and Boring A specialized treatise for machinists, students in the industrial and engineering schools, and apprentices, on turning and boring methods, etc. This facing head carries a guide t which is steadied in a taper bushing c, driven into the taper hole of the hub for that purpose. Turning and Boring A specialized treatise for machinists, students in the industrial and engineering schools, and apprentices, on turning and boring methods, etc. The arbor is made a driving fit for the work, and the end or pilot is a running fit in the bushing of the box-tool. Turning and Boring A specialized treatise for machinists, students in the industrial and engineering schools, and apprentices, on turning and boring methods, etc. The blank is also held by a bolt B which forces a bushing against the cylindrical end. Turning and Boring A specialized treatise for machinists, students in the industrial and engineering schools, and apprentices, on turning and boring methods, etc. This latter is steadied by a pilot t which enters the hole in the sliding bushing c on which the work is supported. Turning and Boring A specialized treatise for machinists, students in the industrial and engineering schools, and apprentices, on turning and boring methods, etc. The chuck carries a bushing r of suitable diameter to support the boring-bars in the main turret, as will be described. Turning and Boring A specialized treatise for machinists, students in the industrial and engineering schools, and apprentices, on turning and boring methods, etc. A disk i is inserted back of bushing d, so that the latter may be easily removed by passing a rod through the hollow shank. Turning and Boring A specialized treatise for machinists, students in the industrial and engineering schools, and apprentices, on turning and boring methods, etc. The fourth operation is that of recessing the bushing, and the fifth operation, facing the end to remove the rough surface left by the cutting-off tool. Turning and Boring A specialized treatise for machinists, students in the industrial and engineering schools, and apprentices, on turning and boring methods, etc. The work is supported during this operation by a bushing held on a supporting arbor U, having a pilot which enters a bushing in the chuck. Turning and Boring A specialized treatise for machinists, students in the industrial and engineering schools, and apprentices, on turning and boring methods, etc. The work is further supported and centered by sliding bushing c, which is tapered to fit the finished hole in the hub, and has an accurate bearing in bushing r in the chuck. Turning and Boring A specialized treatise for machinists, students in the industrial and engineering schools, and apprentices, on turning and boring methods, etc. In the first operation, boring-bar m is brought in line with the spindle and is entered in bushing r in the chuck. Turning and Boring A specialized treatise for machinists, students in the industrial and engineering schools, and apprentices, on turning and boring methods, etc. This bushing is provided with a threaded collar for forcing it into the work and withdrawing it. Turning and Boring A specialized treatise for machinists, students in the industrial and engineering schools, and apprentices, on turning and boring methods, etc. While taking these cuts, the bars m and m1 are supported by their extension ends which enter bushing r located in the central hole of the chuck. Turning and Boring A specialized treatise for machinists, students in the industrial and engineering schools, and apprentices, on turning and boring methods, etc. The interior of the casting is turned concentric with the lathe spindle by a heavy boring-bar, the end of which is rigidly supported by a bushing in the spindle. Turning and Boring A specialized treatise for machinists, students in the industrial and engineering schools, and apprentices, on turning and boring methods, etc. Some cutter bars have an extension end, or “pilot” as it is called, which passes through a close-fitting bushing in the table to steady the bar. Turning and Boring A specialized treatise for machinists, students in the industrial and engineering schools, and apprentices, on turning and boring methods, etc. This bar is steadied by its bearing in bushing r in the chuck. Turning and Boring A specialized treatise for machinists, students in the industrial and engineering schools, and apprentices, on turning and boring methods, etc. The bars carrying cutters r and s have extensions or “pilots” which enter a close-fitting bushing in the table, in order to steady the bar and hold it in alignment. Turning and Boring A specialized treatise for machinists, students in the industrial and engineering schools, and apprentices, on turning and boring methods, etc. In addition, the bushing is recessed in the second operation, and the outer end faced. Turning and Boring A specialized treatise for machinists, students in the industrial and engineering schools, and apprentices, on turning and boring methods, etc. The upper diagram shows the position of the bar as it enters the hole, and the lower one the position after it has entered the bushing and is engaged in turning the recess. Turning and Boring A specialized treatise for machinists, students in the industrial and engineering schools, and apprentices, on turning and boring methods, etc. This bar is steadied by a bushing in the drill support c which is attached to the carriage, and may be swung into or out of the operating position, as required. Turning and Boring A specialized treatise for machinists, students in the industrial and engineering schools, and apprentices, on turning and boring methods, etc. The hole is then rough-bored by bar C, which is supported in a bushing in the chuck, as shown in Fig. Turning and Boring A specialized treatise for machinists, students in the industrial and engineering schools, and apprentices, on turning and boring methods, etc. |
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