Machinery's Handbook for Machine Shop and Drafting-room: A Reference Book on Machine Design and Shop Practice for the Mechanical Engineer, Draftsman, Toolmaker and MachinistIndustrial Press, 1915 - 1400 pages |
From inside the book
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Page 548
... 48 86 162 40 100 302 48 40 72 23 72 292 40 44 86 172 72 12 48 86 40 40 72 31 64 86 23 86 292 48 86 15 64 242 64 86 31 100 2016 56 64 35 48 86 14 Gear Tooth Parts ( Diametral Pitch Gears ) Thickness Working 548 CAM MILLING.
... 48 86 162 40 100 302 48 40 72 23 72 292 40 44 86 172 72 12 48 86 40 40 72 31 64 86 23 86 292 48 86 15 64 242 64 86 31 100 2016 56 64 35 48 86 14 Gear Tooth Parts ( Diametral Pitch Gears ) Thickness Working 548 CAM MILLING.
Page 549
... diametral pitch ; P ' circular pitch ; N = number of teeth ; ( if the number of teeth in both gear and pinion == number are referred to , N , = number of teeth in gear , and Np of teeth in pinion ) ; D = pitch diameter ; C = center ...
... diametral pitch ; P ' circular pitch ; N = number of teeth ; ( if the number of teeth in both gear and pinion == number are referred to , N , = number of teeth in gear , and Np of teeth in pinion ) ; D = pitch diameter ; C = center ...
Page 550
... Diametral Pitch 3.1416 Divide 3.1416 by circular pitch . P = P ' Circular 3.1416 2 Divide 3.1416 by diametral pitch . P ' = Pitch P N Pitch 3 Divide number of teeth by diametral pitch . D = Diameter P Pitch 4 Diameter Multiply number of ...
... Diametral Pitch 3.1416 Divide 3.1416 by circular pitch . P = P ' Circular 3.1416 2 Divide 3.1416 by diametral pitch . P ' = Pitch P N Pitch 3 Divide number of teeth by diametral pitch . D = Diameter P Pitch 4 Diameter Multiply number of ...
Page 551
... diametral pitch . Multiply the difference of the numbers of teeth in the gear and pinion by the cir- cular pitch and divide the product by 6.2832 . Subtract 2 from the number of teeth and ... Pitch Circular Pitch P P ' I 14 SPUR GEARING 551.
... diametral pitch . Multiply the difference of the numbers of teeth in the gear and pinion by the cir- cular pitch and divide the product by 6.2832 . Subtract 2 from the number of teeth and ... Pitch Circular Pitch P P ' I 14 SPUR GEARING 551.
Page 552
... Pitch Circular Pitch P P ' I 14 12 14 2 214 21/2 24 ******** 1/2 6.2832 4.1888 3. 1416 2.5133 2.0944 1.7952 1.5708 1.3963 1.2566 I. 1424 ΙΟ 334567890 1.0472 32 0.8976 0.7854 0.6283 0.5236 ... Diametral Pitch Depth of Pitch 552 SPUR GEARING.
... Pitch Circular Pitch P P ' I 14 12 14 2 214 21/2 24 ******** 1/2 6.2832 4.1888 3. 1416 2.5133 2.0944 1.7952 1.5708 1.3963 1.2566 I. 1424 ΙΟ 334567890 1.0472 32 0.8976 0.7854 0.6283 0.5236 ... Diametral Pitch Depth of Pitch 552 SPUR GEARING.
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Common terms and phrases
addendum axis beam bearing belt Bevel Gears brass cast iron cent center distance center of gravity chain circle circular pitch clearance coefficient of friction Cosine Sine Cotan Cube cutter deflection degrees depth Diam diametral pitch dimensions disk divide drill driven equal example factor factor of safety feed feet per minute formulas friction gage Gear on Worm given grinding high-speed steel hole horsepower knurl length load Logarithms lubricant machine maximum milling modulus moment of inertia multiply number of teeth pinion pitch diameter pitch line plate pounds per square pressure pulley radius ratio revolutions per minute rivets roller chain Root rope Secant Cosecant shaft shear side Sine Cosine Sine Cotangent spiral angle spring sprocket spur gears square inch steel strength stress surface Tangent taper thickness thread tool tooth Trigonometrical Functions velocity weight wheel Wire Worm Gearing ΙΟ
Popular passages
Page 259 - Moment of a Force. — The moment of a force with respect to a point is the product of the force multiplied by the perpendicular distance from the given point to the direction of the force.
Page 279 - If a body oscillates about an axis, then the point at which, if a blow is struck by the body, the percussive action is the same as if the whole mass of the body were concentrated at that point, is called the center of percussion. This point is located at the same point as the center of oscillation. Center Reamers. A "center reamer" is a reamer the teeth of which meet in a point.
Page 993 - Depth of Cut per Tooth The amount of metal that the successive teeth of a broach should remove, or the increase in size per tooth, depends largely upon the hardness or toughness of the material to be broached. The size of the hole in proportion to its length also affects the depth of cut, so that it is impossible to give more than a general idea of the increase in size per tooth. Medium-sized broaches for round or square holes usually have an increase of from 0.001 to 0.003 inch per tooth for broaching...
Page 295 - The time of vibration of a pendulum varies directly as the square root of the length, and inversely as the square root of the acceleration due to gravity at the given latitude and elevation above the earth's surface.
Page 274 - If a body is acted upon by several forces, it is acted upon by each of these as if the others did not exist. This is true whether the body is at rest or in motion. In other words, if two or more forces act upon a body at the same time, each produces exactly the same effect as if it acted alone; the total effect or resultant motion of all the forces may be found by a diagram in the same way as the resultant of forces is found.
Page 259 - The resultant of two forces applied at the same point, and acting in the same direction, is equal to the sum of the forces. For example, if the two forces AB and AC, one equal to two and the other equal to three pounds ,are applied at point A, then their resultant AD equals the sum of these forces, or five pounds.
Page 926 - ... instead of 280, the number being reduced because the total movement of the crank, for each indexing, is equal to its movement relative to the index plate, plus the movement of the plate itself when (as in this case) the crank and plate rotate in the same direction. If they were rotated in opposite directions, the crank would have a total movement equal to the amount it turned relative to the plate, minus the movement of the plate.
Page 369 - The principal conclusions to be drawn from the results of this research may be briefly stated as follows: 1. The length of tube, between transverse joints tending to hold it to a circular form, has no practical influence upon the collapsing pressure of a commercial lap.welded steel tube so long as this length is not less than about six times the diameter of the tube.
Page 719 - Rule. — Multiply the diameter of the driving pulley by its number of revolutions per minute, and divide the product by the diameter of the driven pulley.
Page 297 - An externally fired fire-tube or flue boiler is a steam boiler, part of the outer shell of which is exposed to fire or to the products of combustion, and containing flues through which such products pass from the furnace to the uptake.