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