Appletons' cyclopaedia of applied mechanics: a dictionary of mechanical engineering and the mechanical arts (1880)
D. Appleton and Company, Benjamin, Park, 1849-1922 · New York, D. Appleton · leaf 16
begins to act upon the face of the follower at R, and acts upon it until 0 and L come together at P,the point of contact lying always in the arc R P. These two curves now quit contact, and the actionis continued between the face of the drivers tooth and the flank of the followers, ending at A, asin…
Mechanical engineering -- Dictionaries
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