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 143
Fig. 117.—Construction of the star gage. measuring fingers will be seen to be pushed inward by springsand to abut, by their conical ends, against the similar conicalend of a central push rod. At the right-hand end is a microm-eter barrel, similar to those of ordinary micrometer calipers,which…
Machine-shop practice
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