As the fabric lying between gripping lines is tensioned by the component of {HEAD ~ lateral displacement motion} of {TAIL ~ the gripping elements}, the fabric is simultaneously gathered by the component of closing motion 
of
As the fabric lying between gripping lines is tensioned by the component of { HEAD ~ lateral displacement motion } of { TAIL ~ the gripping elements } , the fabric is simultaneously gathered by the component of closing motion
OTH OTH OTH OTH OTH OTH OTH OTH OTH OTH OTH OTH OTH HEAD HEAD HEAD HEAD HEAD HEAD HEAD REL TAIL TAIL TAIL TAIL TAIL TAIL TAIL OTH OTH OTH OTH OTH OTH OTH OTH OTH OTH OTH OTH