Grant, George B. (George Barnard), 1849-1917 · Boston, Grant gear works, incorporated · leaf 51
well as follow. For very light machinery, such as clockwork, there is no form of tooth that is su-perior to the roller pin tooth, and, with theimprovement to be explained, there is nobetter form for any purpose. 94.—CUTTING THE PIN TOOTH. The pin gear tooth can be very easily andaccurately shaped… … Pin gear cutter Fig. 71. 95.—PARTICULAB FORMS OF PIN GEARS. When the pins are supported betweentwo plates, as in Fig. 70, the wheel is calleda lantern wheel, and is the most common form of clock pinion. The pins are some-times called staves, and are sometimesknown as leaves. Defect of Pin Tooth. 49…
Gearing
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