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 166
Fig. 130.—Sixteen-twenty-foot extension boring mill. TURNING AND BORING 155 … 156 METHODS OF MACHINE SHOP WORK ward position is shown in Fig. 130. In order to reach thecenter of the table when the housings are run back, an auxiliaryremovable arm perpendicular to the cross rail is provided. Unlike all other machine tools the boring mill developedfrom the top downward. Its…
Machine-shop practice
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