Modern mechanism, exhibiting the latest progress in machines, motors, and the transmission of power, being a supplementary volume to Appletons' cyclopaedia of applied mechanics (1892)
Benjamin, Park, 1849-1922 · New York, D. Appleton · leaf 200
Fig. 4.-Ball-bearings for drill-presses. Fig. 2.—Sensitive drill. _^ _ _ ^ nuts shown. Power consumed in J)riUing.—\ studv of the power required to drive an ordinary drill-press has been made by Prof. Lester P. Brcckenridge, M. K., of Lehigh University, l•■■■•^— Indicator … Fig. 3.—Multiple traverse table-drill. 186 DKlLLIXG-.MACiilXE.S, METAL
Mechanical engineering
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