Thus, {HEAD ~ engagement plate} 68 is disposed about {TAIL ~ engagement rods} 36, 38 and between head portions 64, 66 and spacer sleeves 44, 46 
is disposed about
Thus , { HEAD ~ engagement plate } 68 is disposed about { TAIL ~ engagement rods } 36 , 38 and between head portions 64 , 66 and spacer sleeves 44 , 46
OTH OTH HEAD HEAD HEAD HEAD HEAD HEAD OTH REL REL REL TAIL TAIL TAIL TAIL TAIL TAIL OTH OTH OTH OTH OTH OTH OTH OTH OTH OTH OTH OTH OTH OTH OTH OTH