A detent arrangement permits {HEAD ~ a metered amount} of foam sheet material to be advanced past the planar cutting surface by {TAIL ~ the screw feed arrangement} 
to be advanced by
A detent arrangement permits { HEAD ~ a metered amount } of foam sheet material to be advanced past the planar cutting surface by { TAIL ~ the screw feed arrangement }
OTH OTH OTH OTH HEAD HEAD HEAD HEAD HEAD HEAD HEAD OTH OTH OTH OTH REL REL REL OTH OTH OTH OTH OTH REL TAIL TAIL TAIL TAIL TAIL TAIL TAIL TAIL