Beale, Oscar James, Brown & Sharpe Manufacturing Company (Providence, R.I.) · Providence, R.I. : Brown & Sharpe Mfg. Co. · leaf 119
n lathe side tool. Inthis case, of course, the gears had to be reversed inorder to fiuish both sides of teeth. A description and anillustration of cutting spiral and spur gears with a fly tool onour Universal Milling Machine are in the American Machin-ist for ^Sov. 21, 1885. L.ofC. 100 BROWN &… … In Fig. 44, the line B C is tangent to the arc D E F,and the line A E O, being perpendicular to the tan-gent at E, the point of tangency, is a normal to thearc. Fig. 45 is a representation of the pitch surface of aspiral gear. A D C is the circular pitch, as in PartI. A D C is the same circular…
Gearing
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