In FIG 6, the fabric gripping lines are engaged upon {TAIL ~ the top piece} of fabric in {HEAD ~ the stack} 
In FIG 6 , the fabric gripping lines are engaged upon { TAIL ~ the top piece } of fabric in { HEAD ~ the stack }
OTH OTH OTH OTH OTH OTH OTH OTH OTH OTH OTH TAIL TAIL TAIL TAIL TAIL TAIL TAIL OTH OTH OTH HEAD HEAD HEAD HEAD HEAD HEAD