Another subsidiary object is to provide a shock absorber which will accommodate movement in a horizontal plane —{HEAD ~ pivotal movement} between trailer and {TAIL ~ towing} vehicle 
between
Another subsidiary object is to provide a shock absorber which will accommodate movement in a horizontal plane — { HEAD ~ pivotal movement } between trailer and { TAIL ~ towing } vehicle
OTH OTH OTH OTH OTH OTH OTH OTH OTH OTH OTH OTH OTH OTH OTH OTH OTH OTH HEAD HEAD HEAD HEAD HEAD HEAD REL OTH OTH TAIL TAIL TAIL TAIL TAIL OTH