The cambered end 92 of the brush core includes a pair of aligned slots 93, 94 which receive {HEAD ~ the keys} 90, 91 of {TAIL ~ the cradle} 85 
of
The cambered end 92 of the brush core includes a pair of aligned slots 93 , 94 which receive { HEAD ~ the keys } 90 , 91 of { TAIL ~ the cradle } 85
OTH OTH OTH OTH OTH OTH OTH OTH OTH OTH OTH OTH OTH OTH OTH OTH OTH OTH OTH HEAD HEAD HEAD HEAD HEAD HEAD OTH OTH OTH REL TAIL TAIL TAIL TAIL TAIL TAIL OTH