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 222
any. The work table is arranged similarly to that of aknee-type milling machine with the addition that it has fittedto the work table, in such positions as to read in two directionsat right angles from one another, two finely graduated scaleswhich are provided with verniers. With this construction… … 212 METHODS OF MACHINE SHOP WORK work may be begun with the first reading at the zero or, morefrequently, at an even inch of the scale. To prevent the side-wise crawling tendency of the drill on the surface of the work,it is guided by a bush inserted in an arm which projects from themachine frame…
Machine-shop practice
Internet Archive · Gerstein Library, University of Toronto · Public Domain Mark 1.0. Free to use for anything.
