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 212
erious wear of closed camsat high speeds. The direction of rotation of the roller on its pin isreversed twice during each revolution of the cam at the points where 10 20 30 40 50 60 70 80 90 100 7 65 <%. c 0 >< ■-1 3 ,.-,=.*i® ■$> ,A S uii : rorwE rd ^x • ^. ■^ ^^ C\^^^ ^•* ■s ^ t^^>… … Fig. 12.—Construction for lever arms of unequal length. 13, by which the cam outline is laid out directly on the former blankand the errors due to a transfer are avoided. The drawing boardcontains a pocket of a depth equal to the thickness of the formerand a stump of the same diameter as the hole…
Machine design
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