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