Grant, George B. (George Barnard), 1849-1917 · Boston, Grant gear works, incorporated · leaf 12
gh them. The tangents s t and;S2make equal angles with the pitch lines,so that the required curve can often be fullydetermined by drawing its tangent and oneor two points. To construct the line of action, make theangle m 0 e equal to the angle n a d,and lay off 0 ^^ equal to p a. The point5 is on a… … When the line of action alone is given, theodontoids for given pitch lines are fully de-termined, but there seems to be no simplegraphical method for constructing them ex-cept for special cases. They can be obtainedby the use of the calculus (33), or drawn bythe integrating instrument of (34). The…
Gearing
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