{HEAD ~ The apparatus} 1 wherein {TAIL ~ the teeth} are bolted to the beam and the cutting flanges are bolted to the teeth so the teeth and the cutting flanges may readily be replaced 
{ HEAD ~ The apparatus } 1 wherein { TAIL ~ the teeth } are bolted to the beam and the cutting flanges are bolted to the teeth so the teeth and the cutting flanges may readily be replaced
HEAD HEAD HEAD HEAD HEAD HEAD OTH REL TAIL TAIL TAIL TAIL TAIL TAIL 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