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 178
Fig. 142. Fig. 143. Principle of the pilot bar. … Fig. 144.—Use of the pilot bar. acts serving to greatly reduce its effect and to increase the capac-ity for heavy work. The pilot bar is more frequently made to support the cutting 168 METHODS OF MACHINE SHOP WORK tool, thereby, in another way, increasing the capacity for heavycuts. Such a use of…
Machine-shop practice
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