Beale, Oscar James, Brown & Sharpe Manufacturing Company (Providence, R.I.) · Providence, R.I. : Brown & Sharpe Mfg. Co. · leaf 112
Fig. 40-racks and gears. … PROVIDENCE, R. I• U. S. A Fig. 41.-SPIRAL GEARING. 94 BBOWN & SHARPE MFG. CO. A ^^ F —1 / S 1 / \ ^, / /Al ^1 / ^ ^N^^ V ^ PITCH OF SPIRAL / § \ \ ^^ \ A < ^ 1 Y \/^ 1 t ^ =. U G c :Fig. 4:S ral. If we now turn this cylinder A B C D in the direc-tion of the arrow, the spiral will advance…
Gearing
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