{TAIL ~ The hook} is operatively connected to a power jack in {HEAD ~ such a manner} that, upon actuation of the power jack, the frame is pulled toward the slat engaged by the hook thereby causing the carpet to be pulled by the prong members toward the adjacent wall edge 
{ TAIL ~ The hook } is operatively connected to a power jack in { HEAD ~ such a manner } that , upon actuation of the power jack , the frame is pulled toward the slat engaged by the hook thereby causing the carpet to be pulled by the prong members toward the adjacent wall edge
TAIL TAIL TAIL TAIL TAIL TAIL OTH OTH OTH OTH OTH OTH OTH OTH HEAD HEAD HEAD HEAD HEAD HEAD HEAD OTH OTH OTH OTH OTH OTH OTH OTH OTH OTH OTH OTH OTH OTH OTH OTH OTH OTH OTH OTH OTH OTH OTH OTH OTH OTH OTH OTH OTH OTH OTH OTH OTH OTH OTH OTH