Grant, George B. (George Barnard), 1849-1917 · Boston, Grant gear works, incorporated · leaf 46
h is either exactly one diametral orone inch circular, and for any other pitchmultiply or divide as directed in the table. Fig. 61 shows the process applied to apractical case, with the distances given infigures. Fig. 62 shows the c-ame process applied toan internal gear of twenty-four teeth… … Internal teeth Fig, 02. 44 Willis Odontography 84.—THE WILLIS ODONTOGEAPH. This is the oldest and best knownof all the odontographs, but it isinferior to several others since pro-posed, not only in ease of operation,but in accuracy of result. To apply it, find the pitch point«a and a half a tooth…
Gearing
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