{HEAD ~ An inlet conduit} extends to a tangential opening formed in {TAIL ~ the inner wall member} for introducing fluid into an interior chamber 
{ HEAD ~ An inlet conduit } extends to a tangential opening formed in { TAIL ~ the inner wall member } for introducing fluid into an interior chamber
HEAD HEAD HEAD HEAD HEAD HEAD HEAD OTH OTH OTH OTH OTH OTH OTH TAIL TAIL TAIL TAIL TAIL TAIL TAIL TAIL OTH OTH OTH OTH OTH OTH OTH