Grant, George B. (George Barnard), 1849-1917 · Boston, Grant gear works, incorporated · leaf 78
ipseby the method of (137). Find a point a onthe major axis, from which an arc from Awill pass through u, and it will be the majorcenter. It may be found by trial, or bydrawing vm at right angles to uA, andbisecting Am in a. Through a draw ac at right angles to AB,and its intersection with the… … Four center method Lines that are parallel to the pitch line,such as the addendum, root, clearance, andbase lines, are to be drawn from the samecenters. 141.—ROLLING ELLIPSES. When two equal ellipses. Fig. 127, arearranged to revolve on their foci as centers,with a center di-stance equal to the…
Gearing
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