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 58
D WORKMANSHIP 47 There are in the machine shop certain standard tapers.The taper shanks of twist drills and the sockets by which they areheld and driven are made to the Morse taper of nominally,though not exactly, five-eighths of an inch per foot. The workends of milling-machine spindles have each… … Fig. 31.—Third application of the two-disc method of originating angles. be much better if we had but one taper, but the unfortunatediversity is too firmly established to be corrected. Interchangeability of these taper pieces in imperative.Twist drills must interchange in their sockets and so with…
Machine-shop practice
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