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 846
e involute curve may be described mechanically in several ways. Thuslet A, Fig. 2063, be the centre of a wheel, for which the form of involute teetli isto be found. Let m.n a be a thread lapped round its circumference, having aloop-hole at its extremity a; in this fix a pin, with which describe the… … -e»5 The involute ab — h may also be produced by an epicycloidai motion; for since the circumferenceof a generating circle, whose centre is infinitely distant, must be a straight line, we may form the invo- 844 GEERING. lute by making a straight ruler roll upon the circumference of the circle to be…
Mechanical engineering · Mechanics · Engineering
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