Grant, George B. (George Barnard), 1849-1917 · Boston, Grant gear works, incorporated · leaf 32
his rule on gears often and twelve teeth, where its error is thegreatest, and it is reasonable that the invo-lute tooth should not be in great favor withthose who have been taught to draw it thus. The error gradually decreases, until, formore than thirty teeth, it is tolerably correct,but it gives… … A. bad rule ^ Figi 39. 62.—USING THE mVOLUTE ODONTOGRAPH.INVOLUTE ODONTOGRA.PH.Standakd Interchangeable Tooth, Centers on Base Lnnu{For Table of Pitch Diameters see 35.) Divide by the Multiply by the Diametral Pitch. Circular Pitch. Teeth. Face Flank Face Flank Radius. Radius. Radius. Radius. 10…
Gearing
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