This permits {HEAD ~ the cradle} 85 to maintain {TAIL ~ driving engagement} with the brush core 55 when the components, shown in FIG 7, are assembled as seen in FIG 6 
to maintain
This permits { HEAD ~ the cradle } 85 to maintain { TAIL ~ driving engagement } with the brush core 55 when the components , shown in FIG 7 , are assembled as seen in FIG 6
OTH OTH HEAD HEAD HEAD HEAD HEAD HEAD OTH REL REL TAIL TAIL TAIL TAIL TAIL TAIL OTH OTH OTH OTH OTH OTH OTH OTH OTH OTH OTH OTH OTH OTH OTH OTH OTH OTH OTH OTH OTH