Grant, George B. (George Barnard), 1849-1917 · Boston, Grant gear works, incorporated · leaf 74
f logarithmic spiral arcs A and a, apair of elliptic bilobal arcs B and b, a pairof logarithmic spiral arcs D and d, and apair of elliptic quadrilobal arcs B and e.An endless variety of combinations can bemade in this way.It is not necessary that the component Composite Pitch Lines. 71 curves be… … Composite pitch linesFig, 117, points, breaks, and interniptions of the continuity of the curve, for there must bedefective tooth action at such points. Thecurves should run smoothly into each otherwith gradual changes of curvature.
Gearing
Internet Archive · Library of Congress · Public Domain Mark 1.0. Free to use for anything.
