Grant, George B. (George Barnard), 1849-1917 · Boston, Grant gear works, incorporated · leaf 8
ds we can choose any one lineof action, and form any desired number ofthem from it. 15.—INTERNAL CONTACT. The pitch lines of Fig. 5 curve in oppositedirections, and the contact is said to be ex-ternal. But the principles involved are in-dependent of the direction of the pitch lines,and they may… … Interndl action Cusps and Terminals. of the tooth may be chosen as the practicalworking side. Therefore the internal gear is precisely likethe external gear of the same pitch diameter,working on the same lines of action, so faras the odontoids are concerned, as illustratedby Fig. 7. Fig. 7.
Gearing
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