Equipment 1 including a head end scraper associated with each apron conveyor for removing {HEAD ~ refuse} from {TAIL ~ the apron conveyors} 
Equipment 1 including a head end scraper associated with each apron conveyor for removing { HEAD ~ refuse } from { TAIL ~ the apron conveyors }
OTH OTH OTH OTH OTH OTH OTH OTH OTH OTH OTH OTH OTH OTH HEAD HEAD HEAD HEAD HEAD REL TAIL TAIL TAIL TAIL TAIL TAIL TAIL