{HEAD ~ The cap} includes a transverse top wall which is spaced from the top edge of the inner wall to provide {TAIL ~ an overflow path} for surges of liquid and gas 
{ HEAD ~ The cap } includes a transverse top wall which is spaced from the top edge of the inner wall to provide { TAIL ~ an overflow path } for surges of liquid and gas
HEAD HEAD HEAD HEAD HEAD HEAD OTH OTH OTH OTH OTH OTH OTH OTH OTH OTH OTH OTH OTH OTH OTH OTH OTH OTH TAIL TAIL TAIL TAIL TAIL TAIL TAIL OTH OTH OTH OTH OTH OTH