A mechanism 1, wherein said bolt and {HEAD ~ said sleeve element} have {TAIL ~ respective outer and inner surfaces} in frictional sliding contact, and further comprising means for lubricating said surfaces from a position at said outer end of said bolt 
have
A mechanism 1 , wherein said bolt and { HEAD ~ said sleeve element } have { TAIL ~ respective outer and inner surfaces } in frictional sliding contact , and further comprising means for lubricating said surfaces from a position at said outer end of said bolt
OTH OTH OTH OTH OTH OTH OTH OTH HEAD HEAD HEAD HEAD HEAD HEAD HEAD REL TAIL TAIL 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