American Machinists' Handbook and Dictionary of Shop Terms: A Reference Book of Machine Shop and Drawing Room Data, Methods and Definitions |
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Page 21
... bottom of thread shall not exceed part of the hight of the original triangle . The shape of the bottom of the thread resulting from said clearance is left to the judgment of the manufacturers . However , the Congress recommends rounded ...
... bottom of thread shall not exceed part of the hight of the original triangle . The shape of the bottom of the thread resulting from said clearance is left to the judgment of the manufacturers . However , the Congress recommends rounded ...
Page 22
... Bottom of per Inch Thread Thread Thread Thread of Space at Top of Thickness at Root of Thread I I.O .5100 .3707 .3655 .6293 .6345 I -750 .3850 .2780 .2728 .4720 .4772 2 .500 .2600 .1853 .1801 3147 .3199 34567896 .3333 .1767 .1235 .1183 ...
... Bottom of per Inch Thread Thread Thread Thread of Space at Top of Thickness at Root of Thread I I.O .5100 .3707 .3655 .6293 .6345 I -750 .3850 .2780 .2728 .4720 .4772 2 .500 .2600 .1853 .1801 3147 .3199 34567896 .3333 .1767 .1235 .1183 ...
Page 23
... bottom of thread between screw and nut is obtained by boring the nut blank .020 oversize . screw . The outside diameter of the tap is made .020 larger than the screw to give clearance between top of screw - thread and bottom of nut ...
... bottom of thread between screw and nut is obtained by boring the nut blank .020 oversize . screw . The outside diameter of the tap is made .020 larger than the screw to give clearance between top of screw - thread and bottom of nut ...
Page 26
... bottom of the " V " is carried low enough so that the anvil and spindle clear the top and bottom of the thread and rest directly on the sides of the thread . As it measures one - half of the depth of 26 SCREW THREADS.
... bottom of the " V " is carried low enough so that the anvil and spindle clear the top and bottom of the thread and rest directly on the sides of the thread . As it measures one - half of the depth of 26 SCREW THREADS.
Page 27
... bottom of the thread groove , and unless calipers made expressly for such work are at hand , the measurement on the thread angle is not made with any degree of accuracy or is omitted entirely . The accompanying sketches , Figs . 11 , 12 ...
... bottom of the thread groove , and unless calipers made expressly for such work are at hand , the measurement on the thread angle is not made with any degree of accuracy or is omitted entirely . The accompanying sketches , Figs . 11 , 12 ...
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Common terms and phrases
angle belt bevel blank Bolt brass Caliper carbon chips chord chuck circle Circular Pitch clamp clearance CO-SEC CO-TAN coko coloo copper COSINE SINE COSINE Cube Root cubic cutter degrees depth Diam Diametral Pitch diamond dimensions disks distance drill Driving Pulley emery feed finishing flat Flutes Gage gear grinding groove H H H hardened Head hole HOT PRESSED iron key-seats Keyway lathe lathe center lead screw Length lever measuring metal milling milling cutters milling machine Multiply number of teeth piece Pitch Diameter pitch line planer plate plug pulley punch radius Reamer Screw Thread shaft shank shell shown in Fig side play SINE COSINE SINE slide Slot soldering speed spindle spiral square standard steel stud surface Taper per Foot Thickness Threads per Inch tool tooth usually wheel Width wire wwww ΙΟ ΟΙΟ ΤΑΝ
Popular passages
Page 328 - Government in 1866. The three principal units are the meter, the unit of length, the liter, the unit of capacity, and the gram, the unit of weight. Multiples of these are. obtained by prefixing the Greek words: deka (10), hekto (100) , and kilo (1000). Divisions are obtained by prefixing the i.atiu words: deci d'à), centi (гДи)
Page 450 - The module is the pitch diameter in millimeters divided by the number of teeth in the gear. Pin Gear — Gear with teeth formed by pins such as the old lantern pinion. Also formed by short projecting pins or knobs and only used now in some feeding devices. Quill Gears — Gears or pinions cut on a quill or sleeve. Skew Gears — See Helical. Spiral Gears — (Fig.
Page 298 - Key. z, y, x, w, v, u, t, s, r, q, p, o, n, m, 1, k, j, i, h, g, f, e, d, c, b, a.
Page 156 - A, B, C, D, E, F, G, KI, J, K, L, M, N, O, P, 0, R, S, T, U, V, W, X, Y, Z a, b, c, d, e, f, g, h, i...
Page 329 - F. ; the kilogram is the weight of 1 liter of water; the ton is the weight of 1 cubic meter of water.
Page 39 - D is the actual external diameter 71 of the tube throughout its parallel length, and is expressed in inches. Further back, beyond the perfect threads, come two having the same taper at the bottom, but imperfect at the top. The remaining imperfect portion of the screw-thread, furthest back from the extremity of the tube, is not essential in any way to this system of joint ; and its imperfection is simply incidental to the process of cutting the thread at a single operation. From the foregoing it follows...
Page 22 - Thread is an adaptation of the most commonly used style of Worm Thread and is intended to take the place of the square thread. It is a little shallower than the Worm Thread, but the same depth as the square thread and much stronger than the latter. The...
Page 431 - The strip of sheet metal is fed under the stripper and is prevented by that member from lifting with the punch upon the up-stroke, following the punching out of the blank. Where several punches are combined in one hole for blanking as many pieces simultaneously, they are known as multiple blanking tools.
Page 27 - Thus, by measuring one-half of the depth of the thread from the top on each side, the diameter of the thread, as indicated by the caliper, or the pitch diameter, is the full size of the thread less the depth of one thread, as follows : — This depth may be found Depth of Whitworth standard threads = 0-64 -*- number of threads to I inch.
Page 426 - Sharpe system of involute gear cutters, eight cutters are regularly made for each pitch, as follows: No. 1 will cut wheels from 135 teeth to a rack. No.