Handbook for machine designers, shop men and draftsmen (1916)
Halsey, Frederick A. (Frederick Arthur), 1856-1935 · New York, McGraw-Hill book company, inc.; [etc., etc.] · leaf 213
run at the same speed and in the samedirection as indicated by the arrows. The roller c lies betweenthem and is driven in one direction by one cam and in the oppositeby the other. It wiU be observed that with this arrangement thedirection of rotation of the roller on its pin is never changed.… … 083 OiZ 09^ Fig. 13.—Iron drawing board for laying out formers. /I Fig. 14.—Chart with a difierent base line for each cam.
Machine design
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