The sealing flange 59 defines the rear end of the nozzle 11 and has {TAIL ~ a periphery} shaped and adapted to make sealing engagement within a groove around {HEAD ~ the front end} 32 of the tubular member 29 
The sealing flange 59 defines the rear end of the nozzle 11 and has { TAIL ~ a periphery } shaped and adapted to make sealing engagement within a groove around { HEAD ~ the front end } 32 of the tubular member 29
OTH OTH OTH OTH OTH OTH OTH OTH OTH OTH OTH OTH OTH OTH TAIL TAIL TAIL TAIL TAIL TAIL OTH OTH OTH OTH OTH OTH OTH OTH OTH OTH OTH HEAD HEAD HEAD HEAD HEAD HEAD HEAD OTH OTH OTH OTH OTH OTH