Methods of machine shop work : for apprentices and students in technical and trade schools (1914)
Halsey, Frederick A. (Frederick Arthur), 1856-1935 · New York : McGraw-Hill · leaf 183
oil circulating system of thefactory. The reamer is driven by a compressed air motorsuspended from the ceiling by a cord, pulley and balance weight. 172 METHODS OF MACHINE SHOP WORK The reaction due to the driving effort of the motor is resistedby the two hands of the operator appHed to the… … Fig. 152.—Compressed air reaming bench. THE AUTOMATIC TURRET LATHE The most interesting of all machine tools in the almosthuman intelligence which it shows is the automatic turretlathe^ which was developed to a state of practical usefulnesschiefly by Christopher M. Spencer, who made his first…
Machine-shop practice
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