a pair of biasing mean stretched between the corresponding sleeves and {HEAD ~ the fitting member} to {TAIL ~ bias} said other movable shaft toward said one shaft 
a pair of biasing mean stretched between the corresponding sleeves and { HEAD ~ the fitting member } to { TAIL ~ bias } said other movable shaft toward said one shaft
OTH OTH OTH OTH OTH OTH OTH OTH OTH OTH OTH HEAD HEAD HEAD HEAD HEAD HEAD HEAD REL TAIL TAIL TAIL TAIL TAIL OTH OTH OTH OTH OTH OTH OTH OTH