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 12
ferent kinds of gearing above mentioned. The teeth, the forms of whose linear elements are givenin the last column, are supposed to be of sensible magnitude, in order that the circular sections of GEARING. those in the last class may be kept in view. For in face-gearing the increase in the number… … altogether, as just explained ; whereas in the other classes the length of the teeth is not affected byany variation in the height or thickness, and they reduce to lines. CLASS OFGEARING. Relative Position of Axes. Pitch-Surfacei. Elements ofTeeth. 1. Spur , ) 2. Bevel.... )8. Skew.... j 4. Screw J…
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