| 单词 | emery wheel |
| 例句 | A guard is placed over the emery wheel to arrest and collect the water cuttings, &c., which would otherwise fly about. Modern Machine-Shop Practice, Volumes I and II 2012-03-23T02:00:33.140Z It is poor economy to use slow-cutting grindstones to accomplish work that fast cutting emery wheels are suited for. Scientific American, Vol. XXXIX.?No. 24. [New Series.], December 14, 1878 A Weekly Journal Of Practical Information, Art, Science, Mechanics, Chemistry, And Manufactures 2012-01-05T03:00:31.783Z Free use of diamond powder and emery wheel dust are more often responsible. Rules and Practice for Adjusting Watches 2011-12-20T03:00:26.380Z If necessary the bases may be ground on an emery wheel until the pot stands true. Pottery, for Artists Craftsmen & Teachers 2011-12-10T03:00:15.097Z Where the scratches are not deep they may be ground out with a high speed emery wheel or lapped out if that type of machine is not available. Aviation Engines Design?Construction?Operation and Repair 2011-12-04T03:00:04.777Z The carriage c is fed along the bed as an ordinary lathe carriage, and the emery wheels are revolved from an overhead countershaft. Modern Machine-Shop Practice, Volumes I and II 2012-03-23T02:00:33.140Z Foote, a mineralogist, when cutting a section of this meteorite, found the tools injured by something vastly harder than metallic iron, and an emery wheel used for grinding it was ruined. Encyclopaedia Britannica, 11th Edition, Volume 11, Slice 5 "Gassendi, Pierre" to "Geocentric" 2011-09-02T02:00:20.450Z The whole is again put through the cleaning process and evenly reduced in thickness by revolving emery wheels, and eventually finished off in the palest buff colour. Encyclopaedia Britannica, 11th Edition, Volume 11, Slice 3 "Frost" to "Fyzabad" 2011-08-15T02:00:28.473Z A knife grinder with a cup-shape emery wheel makes it easier to grind the bevel straight. Paper-Cutting Machines A Primer of Information about Paper and Card Trimmers, Hand-Lever Cutters, Power Cutters and Other Automatic Machines for Cutting Paper (Typographic Technical Series Part 1, No. 10) 2010-12-30T03:00:20.623Z After the tailstock center is withdrawn, the emery wheel is adjusted for grinding. Turning and Boring A specialized treatise for machinists, students in the industrial and engineering schools, and apprentices, on turning and boring methods, etc. The emery wheel is cased in except at a small opening where it operates upon the drill, and may, therefore, be liberally supplied with water without the latter splashing over. Modern Machine-Shop Practice, Volumes I and II 2012-03-23T02:00:33.140Z Hardness, for instance, would be the resistance offered by a rock to the grinding of an emery wheel; toughness, the resistance to fracture when struck with a hammer. The Future of Road-making in America Our author’s work has been done, as it were, with a chisel and an emery wheel. Village Life in China A Study in Sociology If a knife is ground on the rim of an ordinary emery wheel worn to a small diameter, the smallness of the emery wheel will tend to make the bevel concave. Paper-Cutting Machines A Primer of Information about Paper and Card Trimmers, Hand-Lever Cutters, Power Cutters and Other Automatic Machines for Cutting Paper (Typographic Technical Series Part 1, No. 10) 2010-12-30T03:00:20.623Z When grinding the flank of the tool it should be held on the tool-rest of the emery wheel or grindstone, as shown by the view to the right. Turning and Boring A specialized treatise for machinists, students in the industrial and engineering schools, and apprentices, on turning and boring methods, etc. The emery wheel n is mounted beneath a table t, whose upper surface is planed true, and which has two cylindrical stems c d fitting into the bored guides e. Modern Machine-Shop Practice, Volumes I and II 2012-03-23T02:00:33.140Z The glass-knife is simply a flat piece of hard steel, with the edges ground sharp on an emery wheel. Laboratory Manual of Glass-Blowing Then came a concussion as though the earth had broken like a bursted emery wheel, and a hall of white fire seemed to pass through the walls of the place. The Roof Tree It was like a giant emery wheel had passed across our flank. A Question of Courage They got the word immediately, but to the old man's dismay, Travis's mare shot away like a scared doe, trotting as frictionless as a glazed emery wheel. The Bishop of Cottontown A Story of the Southern Cotton Mills If a fast running grindstone or emery wheel is at hand, many will forge the key a trifle large and then grind it as near as possible, and finish by filing. Modern Machine-Shop Practice, Volumes I and II 2012-03-23T02:00:33.140Z If the wire projects more than a couple of inches from this artificial neck, cut it off at that length and with a flat file or emery wheel give it a sharp triangular point. Home Taxidermy for Pleasure and Profit A Guide for Those Who Wish to Prepare and Mount Animals, Birds, Fish, Reptiles, etc., for Home, Den, or Office Decoration It is frequently the case that an emery wheel will become glazed, due to its extreme hardness. Practical Mechanics for Boys There were nineteen of them, and a few burns from an emery wheel quickly put each one “out of sight.” The Stamps of Canada In the grinding trades eyes are frequently lost by bits of flying emery becoming imbedded in the eyeball, and the Industrial Accident Commission recommends iron or glass guards for emery wheels. Five Lectures on Blindness The circumference of the emery wheel is dressed to the curvature of the box bore by a diamond tool a which swings on a centre in its frame, and can be adjusted to any arc. Modern Machine-Shop Practice, Volumes I and II 2012-03-23T02:00:33.140Z You can now grind the tool dry on a sharp emery wheel. The Working of Steel Annealing, Heat Treating and Hardening of Carbon and Alloy Steel Whenever you go into a machine shop, look at the emery wheel. Practical Mechanics for Boys I make emery wheels similar to those used in a foot lathe, that will answer for sharpening fine tools, such as gouges, rounds, and hollows, and if so, how shall I proceed?—F. Scientific American, Volume XXIV., No. 12, March 18, 1871 A Weekly Journal of Practical Information, Art, Science, Mechanics, Chemistry, and Manufactures. These sparks are such as those struck from a pick on flint, but in this case they are produced by rubbing a rapidly revolving emery wheel against a steel file. Transactions of the American Society of Civil Engineers, vol. LXX, Dec. 1910 Federal Investigations of Mine Accidents, Structural Materials and Fuels. Paper No. 1171 It consists of an emery wheel mounted upon a spindle and with a slide rest in front of it. Modern Machine-Shop Practice, Volumes I and II 2012-03-23T02:00:33.140Z After hardening grind carefully on a wet emery wheel, and be sure that the wheel is sharp with a plentiful supply of water. The Working of Steel Annealing, Heat Treating and Hardening of Carbon and Alloy Steel You will find that it is better to do this work at one time, than to go to the emery wheel a dozen times a day while you are engaged on the job. Practical Mechanics for Boys Gubbins, more especially for mixing emery with agglutinating material for making emery wheels; and a machine is at work on this material in the manufactory of the Standard Emery Wheel Company, Greek Street, Soho. Scientific American Supplement, No. 315, January 14, 1882 Chicago, Ill., a camera with rising front, swing back, 3 double holders, tripod and carrying case, and a scroll saw, with nickel-plated tilting table and emery wheel for a Detective camera. Golden Days for Boys and Girls, Vol. XIII, Nov. 28, 1891 Another method of grinding flat surfaces is to mount the emery wheel beneath a table t in Fig. Modern Machine-Shop Practice, Volumes I and II 2012-03-23T02:00:33.140Z Then have the tool rough ground on a dry emery wheel. The Working of Steel Annealing, Heat Treating and Hardening of Carbon and Alloy Steel Here the grain is removed, and the velvet finish secured by buffing the surface on an emery wheel. Scientific American Supplement, No. 794, March 21, 1891 In grinding the bevel, the chisel must be held so that the cutting edge will be parallel to the axis of the emery wheel. A Course In Wood Turning Exhaust fans of sufficient power shall be provided for the purpose of carrying off dust from emery wheels and grindstones, and dust-creating machinery therein. Women Wage-Earners Their Past, Their Present, and Their Future The cutter c is slid by hand along arbor h and beneath the emery wheel, the method of guiding the cutter to the wheel being shown in Fig. Modern Machine-Shop Practice, Volumes I and II 2012-03-23T02:00:33.140Z The plates are trued up, after they are mounted, by holding a piece of emery wheel to the edges while they are turning. The Boy Mechanic: Volume 1 700 Things for Boys to Do Small sections may be handled by filing, while metal that is too hard to cut in either of these ways may be shaped on the emery wheel. Oxy-Acetylene Welding and Cutting Electric, Forge and Thermit Welding together with related methods and materials used in metal working and the oxygen process for removal of carbon It is sometimes necessary to allow some pupils to use the side of the emery wheel in sharpening the gouge. A Course In Wood Turning It was filled with the offices of lawyers, doctors, agents for machinery, for emery wheels, for wire fencing, for mining-stock. Babbitt To eliminate this curvature it would appear that the position of the emery wheel might be reversed, as in Fig. Modern Machine-Shop Practice, Volumes I and II 2012-03-23T02:00:33.140Z This can be done roughly with hammer and chisel and then smoothed up on an emery wheel, after which cut 24 radial slots 3/4 in. deep on its circumference by means of a hacksaw. The Boy Mechanic: Volume 1 700 Things for Boys to Do Their cutting qualifications are, however, superior to those of the emery wheel, both cutting more freely and being more durable with less liability to glaze. Modern Machine-Shop Practice, Volumes I and II 2012-03-23T02:00:33.140Z A common method of securing emery wheels to their spindles is to fill the bore of the wheel with lead, and bore it out to fit the spindle of the emery grinding machine. Modern Machine-Shop Practice, Volumes I and II 2012-03-23T02:00:33.140Z The drum for driving the emery wheel is at the back of the machine, as shown in the cut. Modern Machine-Shop Practice, Volumes I and II 2012-03-23T02:00:33.140Z Tool or cutter grinding, in which the emery wheel is used to sharpen tools which, from their shape, were formerly softened and sharpened by the file, already largely treated in the preceding chapter. 2nd. Modern Machine-Shop Practice, Volumes I and II 2012-03-23T02:00:33.140Z The saw teeth are ground off on an emery wheel or grindstone to a smooth edge parallel with the back edge. The Boy Mechanic: Volume 1 700 Things for Boys to Do Motion to the emery wheel is conveyed through the belts f and g. Modern Machine-Shop Practice, Volumes I and II 2012-03-23T02:00:33.140Z We have now to consider the adjustment of the cutter to the emery wheel, necessary in order that the cutting edges may be given the necessary clearance. Modern Machine-Shop Practice, Volumes I and II 2012-03-23T02:00:33.140Z The amount of clearance that may be given in this way is limited by the spacing of the teeth and the diameter of the emery wheel, as is seen from Fig. Modern Machine-Shop Practice, Volumes I and II 2012-03-23T02:00:33.140Z Cylindrical grinding, in which both the work and the emery wheel are revolved, as has been explained with reference to grinding-lathes. 3rd. Modern Machine-Shop Practice, Volumes I and II 2012-03-23T02:00:33.140Z In grinding cutters having their teeth a right-hand spiral, care must be taken that in grinding one tooth the emery wheel does not touch the cutting edge of the next tooth. Modern Machine-Shop Practice, Volumes I and II 2012-03-23T02:00:33.140Z The emery wheel should be of a grade of not less than 60 or more than 70. Modern Machine-Shop Practice, Volumes I and II 2012-03-23T02:00:33.140Z An excellent material for removing the glaze from an emery wheel is a piece of ordinary pumice stone. Modern Machine-Shop Practice, Volumes I and II 2012-03-23T02:00:33.140Z The principal cements used in the manufacture of emery wheels are as follows, each representing the cement for one make of wheel:— 1. Modern Machine-Shop Practice, Volumes I and II 2012-03-23T02:00:33.140Z Flat surface grinding, in which the emery wheel takes the place of the ordinary steel cutting tool; and 4th. Modern Machine-Shop Practice, Volumes I and II 2012-03-23T02:00:33.140Z By means of this emery wheel a groove is cut in the flute at the point of the drill, as shown in Fig. Modern Machine-Shop Practice, Volumes I and II 2012-03-23T02:00:33.140Z To obtain true work in this way, however, it is necessary that the cut taken by the emery wheel be a very light one, as will be perceived from the following considerations. Modern Machine-Shop Practice, Volumes I and II 2012-03-23T02:00:33.140Z When the bar has passed over the emery wheel more than half of the bar length, its end f, Fig. Modern Machine-Shop Practice, Volumes I and II 2012-03-23T02:00:33.140Z The chasers are sharpened by grinding the face on an ordinary grindstone or emery wheel. Modern Machine-Shop Practice, Volumes I and II 2012-03-23T02:00:33.140Z Corundum is a mineral similar to emery, and corundum wheels are made and used in the same manner as emery wheels. Modern Machine-Shop Practice, Volumes I and II 2012-03-23T02:00:33.140Z The headstock and tailstock are attached to the bed in the usual manner, the frame carrying the emery wheel is bolted to the slide rest as shown, the rest traversing by a feed spindle motion. Modern Machine-Shop Practice, Volumes I and II 2012-03-23T02:00:33.140Z It is essential that the work revolve in a direction opposite to that of the emery wheel, for the following reasons. Modern Machine-Shop Practice, Volumes I and II 2012-03-23T02:00:33.140Z The table c traverses back and forth past the emery wheel, after the manner of an ordinary iron planing machine, the mechanical parts effecting this motion being placed within the bed upon which c slides. Modern Machine-Shop Practice, Volumes I and II 2012-03-23T02:00:33.140Z The line of cross-feed motion of the emery wheel may be set to the required angle as follows. Modern Machine-Shop Practice, Volumes I and II 2012-03-23T02:00:33.140Z |
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