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 212
Fig. 181.—Upright drilling and tapping machine. at any angle with the horizontal and vertical planes Suchmachines are called universal radials. Sometimes one of theseadjustments is omitted and the machine becomes a semi- DRILLING 201 M^f i P^ … Figs. 182 and 183. -liain and universal radial drilling machines. 202 METHODS OF MACHINE SHOP WORK universal radial. The convenience of the universal and semi-universal machines adapts them to the performing of otherwisedifficult operations, but the necessary joint at the base of thearm—precisely…
Machine-shop practice
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