A handbook on the teeth of gears, their curves, properties, and practical construction (1890)
Grant, George B. (George Barnard), 1849-1917 · Lexington, Mass., Lexington Gear Works · leaf 41
odontoids. As any two of these pitch lines with theirodontoids roll together, the points K willpass over the same arcs and come together tothe pitch point 0 at the same time, and asthe normals and normal angles are equal, thetwo points P will come together at P. Thetwo odontoids are therefore… … Fig,9
Gearing
Internet Archive · Library of Congress · Public Domain Mark 1.0. Free to use for anything.
