{HEAD ~ The recessed end} of the cradle 85 receives {TAIL ~ a correspondingly cambered end} 92 of the brush core 55 
receives
{ HEAD ~ The recessed end } of the cradle 85 receives { TAIL ~ a correspondingly cambered end } 92 of the brush core 55
HEAD HEAD HEAD HEAD HEAD HEAD HEAD OTH OTH OTH OTH REL TAIL TAIL TAIL TAIL TAIL TAIL TAIL TAIL OTH OTH OTH OTH OTH OTH