{TAIL ~ The apparatus} 30, wherein said diameter reduces in size in a direction from {HEAD ~ said leading end} to said trailing end 
{ TAIL ~ The apparatus } 30 , wherein said diameter reduces in size in a direction from { HEAD ~ said leading end } to said trailing end
TAIL TAIL TAIL TAIL TAIL TAIL OTH OTH OTH OTH OTH OTH OTH OTH OTH OTH OTH OTH HEAD HEAD HEAD HEAD HEAD HEAD HEAD OTH OTH OTH OTH