Cyclopedia of mechanical engineering; a general reference work. Editor-in-chief Howard Monroe Raymond. Assisted by a corps of mechanical engineers, technical experts, and designers of the highest professional standing (1908)
American School (Chicago, Ill.), Raymond, Howard Monroe · Chicago American Technical Society · leaf 333
h are correctlyformed. Several mathematical curves are available for use astooth outlines, but in practice the involute and cycloidal curvesare the only ones used for this purpose. The ideal surfaces are known as pitch cylinders or pitchcircles. In Fig. 32 is shown an end view of .such a p;iir of… … Fig. .32. pitch point are equal. If M and M, be the revolutions per minuteof the cylinders respectively, r and i\ their radii, then 2ir»M = 2 7rr,Mi; That is, the number of revolutions varies inversely as the radii. The simple calculation as above is the key to all calculationsinvolving gear trains…
Mechanical engineering
Internet Archive · Gerstein Library, University of Toronto · Public Domain Mark 1.0. Free to use for anything.
