American School of Correspondence · Chicago, American school of correspondence · leaf 235
G necessary movements shall be made-by the tenders of the drawingframe. Operation. The actual operation of drawing is very simpleand consists of passing the slivers between several pairs of rolls,each pair rmming at a greater speed than the preceding one. Therolls are set at a certain distance… … J ojjjjj J ojjjjo OJOJ^ ^TJuuaj j^
Textile industry and fabrics
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