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 40
surfaces is determined by the construction of the rack and wheel in Fig. 2134. Consequently thegreatest length of the screw, as in the ordinary worm and wheel, is determined by the distancethrough which the teeth of the elementary rack travel while actually in gear with those of the wheel.This…
Mechanical engineering -- Dictionaries
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