Grant, George B. (George Barnard), 1849-1917 · Boston, Grant gear works, incorporated · leaf 88
thesphere, as in Figs. 143 and 144, the pitch linesand tooth outlines being the bases of coneswith a common apex. When limited in width, as is usually thecase, it is by a sphere concentric with theoutside sphere, so that a spherical shell isformed. These concentric spherical shells can bemoved on… … Ttvisted bevel gear. The planing process of (28) will fail, forpractical purposes, except for one particularform of tooth, because the shape of the cut-ting tool cannot in the general case be 86 Involute Bevel Gears. changed in form as it approaches the apex,and therefore the tooth will not be…
Gearing
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