Grant, George B. (George Barnard), 1849-1917 · Boston, Grant gear works, incorporated · leaf 31
fting the rack tooth. Theoretically the twelve-toothed pinion isthe smallest standard gear that will have anarc of action as great as the circular pitch,but ten and eleven teeth may be used withan error that is not practically noticeable.Fig. 38 shows a pair of ten-toothed gears in 60.—TEN AND… … Fig. 38 OdontograpJiic pair 61.—A BAD BULE. There is a simple and worthless rule forinvolute teeth that deserves notice only be-cause it is considerably in use. It constructs the whole tooth curve, face andflank, for all numbers of teeth, as a single arc from a center on the base line, and with…
Gearing
Internet Archive · Library of Congress · Public Domain Mark 1.0. Free to use for anything.
