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 215
with respect to one another and also withrespect to the Vs of the planer. The jig has locating Vs 204 METHODS OF MACHINE SHOP WORK which enter the Vs of the planer bed. The tool guided by thejig is a boring bar which is guided at both ends by bushes inthe jig body, the drive being from a radial… … Fig. -Gang drilling machine. in Fig. 186. With a piece of work in position the operatorhas but to trip a lever when the drill drops to the work, feedsthrough it and, when the hole is finished, automatically fliesback to the starting point. The spindles are fitted in successionwith various drills…
Machine-shop practice
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