{HEAD ~ A stopper} 50, stopper plate 52 and stopper pin 54 are secured to {TAIL ~ the arm} 14 adjacent the second end 46 
are secured to
{ HEAD ~ A stopper } 50 , stopper plate 52 and stopper pin 54 are secured to { TAIL ~ the arm } 14 adjacent the second end 46
HEAD HEAD HEAD HEAD HEAD HEAD OTH OTH OTH OTH OTH OTH OTH OTH OTH REL REL REL TAIL TAIL TAIL TAIL TAIL TAIL OTH OTH OTH OTH OTH OTH