A handbook on the teeth of gears, their curves, properties, and practical construction (1887)
Grant, George B. (George Barnard), 1849-1917 · [Boston] · leaf 11
THE EPICYCLOIDAL ENGINE. ODONTOGRAPHS. Many arbitrary or rule of thumb methods for shaping gear teeth havebeen proposed, but they are generally worthless, and reliance should be placedonly on such as are founded on the mathematical principles of the curve tobe imitated. Of these only three are… … THE WILLIS ODONTOGRAPH is a method for finding thecenter m of the circle which is tangent to the epicycloid a b c, at the point b,where it is cut by a line b m, which passes through the adjacent pitch pointk, and makes the angle gkf==75^ with the radial line kf. The radius used, is not the line m…
Gearing
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