Grant, George B. (George Barnard), 1849-1917 · Boston, Grant gear works, incorporated · leaf 52
JBoint gears Fig. 72. Iin rack Fig. 73. … Ifotpin gears Fig. 74. Radial pin teeth Fig. 75. 96. -COKRECT FORM AND DEFECT OF PIN TEETH. Although the pin tooth is apparently of avery simple form, a close examination willshow that it is really quite complicated, andthat its practical action is incomplete and de-fective. There is a cusp (16),…
Gearing
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