An engagement plate 68 has a pair of {HEAD ~ throughholes} 70, 72 to receive the larger diameter portion of {TAIL ~ rods} 36, 38 
An engagement plate 68 has a pair of { HEAD ~ throughholes } 70 , 72 to receive the larger diameter portion of { TAIL ~ rods } 36 , 38
OTH OTH OTH OTH OTH OTH OTH OTH HEAD HEAD HEAD HEAD HEAD OTH OTH OTH OTH OTH OTH OTH OTH OTH OTH TAIL TAIL TAIL TAIL TAIL OTH OTH OTH