A retracting force applied to the engaging means to dispense a predetermined length of {TAIL ~ fabric} by controlling {HEAD ~ the revolutions} of the pincer rolls 
A retracting force applied to the engaging means to dispense a predetermined length of { TAIL ~ fabric } by controlling { HEAD ~ the revolutions } of the pincer rolls
OTH OTH OTH OTH OTH OTH OTH OTH OTH OTH OTH OTH OTH OTH TAIL TAIL TAIL TAIL TAIL OTH OTH HEAD HEAD HEAD HEAD HEAD HEAD OTH OTH OTH OTH