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