Appleton's dictionary of machines, mechanics, engine-work, and engineering : illustrated with four thousand engravings on wood ; in two volumes (1873)
D. Appleton and Company · New York : D. Appleton and Co. · leaf 838
driver, move always in the direction ofthe arrows, then, instead of the teeth being formed symmet-rically, the back of each tooth may be filled up, either bystriking the curves by a very small generating circle, or bet-ter by involutes, which being proportional to the pitch circleswill be sure to… … 836 GEERING. Returning now to the condition often required, though seldom fulfilled in practice, of making wheelsof different numbers, -when of the same pitch, to work correctly together, it is clear from what has beenadvanced in connection with the preceding mode of setting out, that it is not…
Mechanical engineering · Mechanics · Engineering
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