American School of Correspondence · Chicago, American school of correspondence · leaf 212
G, to movearound E is shown in Fig. 131. Reference should be made first to Figs. 125 and 126 whichshow respectively the extreme forward and backward positions of 186 COTTON SPINNING. 147 the detaching roll cam lever. On the cam shaft, W, is keyed acam, Bi, in one side of which is a groove, B^. In… … Fig. 126. Elevation Showing Detaching Roll Cams. twenty teeth, or notches, and an internal gear, C^, of 138 teeth.A pawl, Qi, which is fastened to a stud, K^, and which is carriedby the upper end of the detaching roll cam lever, engages in thenotches of the notched wheel and is held in contact with…
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