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