{HEAD ~ The stopper} 50 is positioned closest to {TAIL ~ the middle section} 48 of the arm 14, the stopper plate 52 is adjacent to the stopper 50 and the stopper pin 54 is adjacent to the stopper plate 52 
{ HEAD ~ The stopper } 50 is positioned closest to { TAIL ~ the middle section } 48 of the arm 14 , the stopper plate 52 is adjacent to the stopper 50 and the stopper pin 54 is adjacent to the stopper plate 52
HEAD HEAD HEAD HEAD HEAD HEAD OTH REL REL REL REL TAIL TAIL TAIL TAIL TAIL TAIL TAIL 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 OTH