American School of Correspondence · Chicago, American school of correspondence · leaf 331
Fig. 215. Combination Builder. sented by the distance between the horizontal lines, C-D. But whenthe bobbin is full and the traverse is shortened to its extent, the point,G, where the hook is attached, has moved in to H and the traverseof the rail is represented by the distance E-F. The distance… … Fig. 216. Diagram Showing Taper at Top and Bottom of Bobbin. C-E and F-D is the same and the bobbin has the same amount oftaper at each end. If it is desired to have a long taper upon the top of the bobbin,the fulcrum of the builder arm is dropped, as in Fig. 217, which 294 COTTON SPINNING 253…
Textile industry and fabrics
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