American School of Correspondence · Chicago, American school of correspondence · leaf 198
equired for thecomb, as they spread sonje when passing through the di aft rolls. The ribbon lapper .is provided with two stop-motions, onewhich stops the machine immediately if a lap runs out at the backand one, called a full lap stop-motion, which regulates the lengthof the laps, so that they will… … Fig. Ill, Diagram of Gearing of Ribbon Lapper. face and make three revolutions to one of the five inch calenderroll. The usual speed for the driving pulleys is from 250 to 300R. P. M. The draft of the ribbon lapper is principally between theback and front rolls, but in addition, there is also a…
Textile industry and fabrics
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