said means forming {HEAD ~ an opening} for discharging liquid from said chamber comprises a transverse bottom plate and a plurality of openings formed in said bottom plate disposed substantially around the periphery of {TAIL ~ said bottom plate} 
said means forming { HEAD ~ an opening } for discharging liquid from said chamber comprises a transverse bottom plate and a plurality of openings formed in said bottom plate disposed substantially around the periphery of { TAIL ~ said bottom plate }
OTH OTH OTH HEAD HEAD HEAD HEAD HEAD HEAD OTH OTH OTH OTH OTH OTH OTH OTH OTH 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