A series of passageways 63 extend radially between {HEAD ~ the inner and outer surfaces} 60, 58 of {TAIL ~ the sleeve} 14 above the level of the lip 62 
of
A series of passageways 63 extend radially between { HEAD ~ the inner and outer surfaces } 60 , 58 of { TAIL ~ the sleeve } 14 above the level of the lip 62
OTH OTH OTH OTH OTH OTH OTH OTH HEAD HEAD HEAD HEAD HEAD HEAD HEAD HEAD HEAD OTH OTH OTH REL TAIL TAIL TAIL TAIL TAIL TAIL OTH OTH OTH OTH OTH OTH OTH OTH