A lip 62 projects radially from the outer surface 58 at {TAIL ~ a level} near {HEAD ~ the upper endt} of the sleeve 14 
A lip 62 projects radially from the outer surface 58 at { TAIL ~ a level } near { HEAD ~ the upper endt } of the sleeve 14
OTH OTH OTH OTH OTH OTH OTH OTH OTH OTH OTH TAIL TAIL TAIL TAIL TAIL TAIL OTH HEAD HEAD HEAD HEAD HEAD HEAD HEAD OTH OTH OTH OTH