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