Grant, George B. (George Barnard), 1849-1917 · Boston, Grant gear works, incorporated · leaf 45
raphic arc, shown greatly exaggeratedby the dotted lines, is at the point c onthe face, and it is greater on a twelve-toothed pinion than on any larger gear.For a twelve-toothed pinion of three-inch circular pitch, a large tooth, theactual amount of the maximum error isless than one one-hundredth… … Three pointodontograph, 83.—USING THE ODONTOGRAPH. To apply the odontograph to any particu-lar case, lirst draw the pitch, addendum,root, and clearance lines, and space the pitchline, Figs. 60 and 61. Then draw the line of flank centers atthe tabular distance dis. outside of thepitch line, and the…
Gearing
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