An elementary treatise on mechanics, embracing the theory of statics and dynamics, and its applications to solids and fluids (1849)
Smith, Augustus William, 1802-1866 · New York, Harper · leaf 113
tremity H of the flexible lineFaH as it unwinds from the circum-ference, and the acting face of b bythe unwinding of the thread GE, theline FCE will always be normal tothe faces of the cogs a and b at theirpoint of contact. The circles describ-ed with the radii AD and BD are called the pitch lines… … 90 STATICS.
Mechanics, Analytic
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