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