American School of Correspondence · Chicago, American school of correspondence · leaf 240
o O -den ^ H ■^ a « ■^ fe « .0 f-t c3 Z ^ ^ 0 •< W 0 COTTON SPINNING 171 of the sliver. When we realize that in doubling six into one, thebreaking of an end means 16% difference in the weight of thesliver, we soon see the need of a stop motion. If six slivers, each … Fig. 144. General Section of Drawing Frame. weighing sixty grains per yard, were doubled with a draft of sixwe should still get a sixty grain sliver, but if an end should break,the weight of the slivers would be fifty grains-, or 16% lighter. Of back stop motions, there are two styles used,…
Textile industry and fabrics
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