Appleton's dictionary of machines, mechanics, engine-work, and engineering (1861)
Appleton, firm, publishers, New York. (1852, D. Appleton & Co.) · New York : D. Appleton · leaf 854
AV «((H) J9i 2063. … The involute ab---h may also be produced by an eplcycloidal motion; for since the circumference»f a generating circle, whose centre is infinitely distant, must be a straight line, we may form the invc- 844 . GEERING. lute by making a straight ruler roll upon the circumference of the circle to bo…
Mechanical engineering
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