In FIG 8, the movable and stationary elements have gripped {HEAD ~ the sheet} and in FIG 9, the sheet is lifted separately from {TAIL ~ the stack} 
In FIG 8 , the movable and stationary elements have gripped { HEAD ~ the sheet } and in FIG 9 , the sheet is lifted separately from { TAIL ~ the stack }
OTH OTH OTH OTH OTH OTH OTH OTH OTH OTH OTH HEAD HEAD HEAD HEAD HEAD HEAD OTH OTH OTH OTH OTH OTH OTH OTH OTH OTH OTH TAIL TAIL TAIL TAIL TAIL TAIL