American School of Correspondence · Chicago, American school of correspondence · leaf 236
Fig. 140. Elevation Showing Drawing Frames. tweeii the fluted carrier roll, P, and the top roll, N^, then betweenthe. four pairs of draft rolls, D,C,B,A, w^here it receives a draft,usually as greatas the number of cans put up at the back. Thus, … Fig. 141. Plan of Card Room Showing the Drawing FramesArranged Longitudinally. if there are six cans at the back, and the sliver from these cans isdrawn through as one sliver, or doubled six into one, the machineis given a draft of six, so that the w^eight of the sliver being de-livered is the same…
Textile industry and fabrics
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