The pot bottom 3 has a plurality of {TAIL ~ outlet ports} 6 which, for example, are {HEAD ~ rectilinear slots} running in a star shaped manner 
The pot bottom 3 has a plurality of { TAIL ~ outlet ports } 6 which , for example , are { HEAD ~ rectilinear slots } running in a star shaped manner
OTH OTH OTH OTH OTH OTH OTH OTH TAIL TAIL TAIL TAIL TAIL TAIL OTH OTH OTH OTH OTH OTH OTH HEAD HEAD HEAD HEAD HEAD HEAD OTH OTH OTH OTH OTH OTH