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 19
ifdriven. Fig. 2086 shows the construction in the former case; the elementary rack-tooth being thecycloid traced by the pitch-circle of the wheel rolling on its tangent, from which the practical tooth-outline is derived as before. In determining the radius of the pin, the line corresponding to… … 2057.
Mechanical engineering -- Dictionaries
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