The apparatus also includes {TAIL ~ a cammed jaw} connected to {HEAD ~ the mandrel engaging plate} and an actuator 
The apparatus also includes { TAIL ~ a cammed jaw } connected to { HEAD ~ the mandrel engaging plate } and an actuator
OTH OTH OTH OTH TAIL TAIL TAIL TAIL TAIL TAIL TAIL OTH OTH HEAD HEAD HEAD HEAD HEAD HEAD HEAD HEAD OTH OTH OTH