American School of Correspondence · Chicago, American school of correspondence · leaf 239
front of the machine becomes full, two calender roll stopmotions which operate when the sliver is absent from between thecalender rolls or when a wind-up occurs on either of them, anda back stop motion which causes the head to stop when the sliverbreaks at the back of the frame or a can becomes… … 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
Textile industry and fabrics
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