American School of Correspondence · Chicago, American school of correspondence · leaf 335
ens that the direction of the main line is such that the front rollwill turn in the wrong direction. To remedy this, the twist link is 297 256 COTTON SPINNING swung over so that the twist gear will engage the intermediate gearon the opposite side from that shown in the drawing. The drums are seven,… … TRONT ROLLr DIA. Pig. 319. Diagram of Draft Gearing. used, are seven inch drum and three-quarters or thirteen-sixteenthsinch whirl. The spindle makes a certain number of revolutions to eachrevolution of the drum, and this is called relation of drum to whirl.This relation must be known in figuring…
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