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 74
half way around relative to each other whenthe pins are again seated in their holes. In this new positionof the parts the two halves of the teeth will be found not to PRECISION WORK AND WORKMANSHIP 63 match perfectly, most of them being offset, as shown in Fig. 46,though by varying amounts. The… … Fig. 47.—Freeland geer cutting machine known to have been in use in 1857. Fig. 46, it is obvious that substantially the same amount ofmetal will be removed from one side of one half and the otherside of the other half of each tooth, the result being a greatimprovement in the work. When the offsets…
Machine-shop practice
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