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 28
e the base line are straight radial lines. For fifty or more teeth draw the flank curve from pitch line to root line. Rack. — Draw by the special rule, the radius for the point being 1.05 inches. Note. — The dotted lines on the pinion teeth show the work of the commonrule for involute teeth, as…
Gearing
Internet Archive · Library of Congress · Public Domain Mark 1.0. Free to use for anything.
