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 140
ads have been worked out for thissystem/ which is admirably adapted to the gaging of largescrews and worms, an illustration of this use of it being givenin Fig. 112 from the British firm, David Brown and Sons. Inthis case no absolute measurement is made, the worm beingcompared with a standard by… … Fig. 114.—Gage for the pitch of screw threads. Company. As in the case of other limit gages shown, theouter fingers are of the go and the inner fingers of the not-godimensions. For the gaging of the pitch the instrumentshown in Fig. 114, also by the Wells Brothers Company, isvery satisfactory. By…
Machine-shop practice
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