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 67
RK THE DIVISION OF FUNCTIONS Before proceeding with the division of index plates, onefeature of them should be noticed. This relates to the shapeof the indexing notch by which the plate is located in its variouspositions. The correct shape of these notches and of thelatch bolt which engages them is… … Fig. 39. Fig. 40. Correct and incorrect constructions of index rings. the plate a small distance as it enters the notch. In otherwords, the sides of the truncated V notch are subject to wearwhich in time destroys its accuracy. In the notch shown inFig. 39, one side will be observed to be radial…
Machine-shop practice
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