{HEAD ~ The upper jaw} is pivotally attached near its inner end on its backside to the end of a dipper stick and {TAIL ~ a double action actuator} or cylinder for operative pivotal movement of the upper jaw relative to the dipper stick 
is pivotally attached to
{ HEAD ~ The upper jaw } is pivotally attached near its inner end on its backside to the end of a dipper stick and { TAIL ~ a double action actuator } or cylinder for operative pivotal movement of the upper jaw relative to the dipper stick
HEAD HEAD HEAD HEAD HEAD HEAD HEAD REL REL REL OTH OTH OTH OTH OTH OTH OTH REL OTH OTH OTH OTH OTH OTH OTH TAIL TAIL TAIL TAIL TAIL TAIL TAIL TAIL OTH OTH OTH OTH OTH OTH OTH OTH OTH OTH OTH OTH OTH OTH OTH