{HEAD ~ The lower jaw} is attached near its inner end on {TAIL ~ its backside} to the dipper stick by a linkage for operative pivotal movement of the upper jaw relative to the lower jaw 
{ HEAD ~ The lower jaw } is attached near its inner end on { TAIL ~ its backside } to the dipper stick by a linkage for operative pivotal movement of the upper jaw relative to the lower jaw
HEAD HEAD HEAD HEAD HEAD HEAD HEAD REL REL OTH OTH OTH 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