Beale, Oscar James, Brown & Sharpe Manufacturing Company (Providence, R.I.) · Providence, R.I. : Brown & Sharpe Mfg. Co. · leaf 76
Fig. ^(3. Fig- 27. Fig. 38. 58 BROWN & SHARPE MFG. CO. tact of teeth in this wheel upoa worm-thread is in pointsonly: yet such wheels have been many years successfullyused in elevators. Fig. 28 is a neat-looking wheel. In gear cuttingengines where the workman has occasion to turn thework…
Gearing
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