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