Apparatus 6 wherein said {HEAD ~ severing means} comprises {TAIL ~ a rotary knife} and a one revolution clutch for driving said rotary knife 
comprises
Apparatus 6 wherein said { HEAD ~ severing means } comprises { TAIL ~ a rotary knife } and a one revolution clutch for driving said rotary knife
OTH OTH OTH OTH HEAD HEAD HEAD HEAD HEAD HEAD REL TAIL TAIL TAIL TAIL TAIL TAIL TAIL OTH OTH OTH OTH OTH OTH OTH OTH OTH OTH