A handbook on the teeth of gears, their curves, properties, and practical construction (1887)
Grant, George B. (George Barnard), 1849-1917 · [Boston] · leaf 50
Moiled curve the curvature of the pitch line 0 K, they arethe same for the same arc 0 K on all curves,and therefore all odontoids traced on thesame side of any number of different pitch-curves by the same point on the same rollerare similar odontoids. … Moiling sptvals When the tracing point is any ordinarypoint on the roller, the curve traced will be atright angles to the pitch curve, but when it
Gearing
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