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