Materials handling apparatus; conveyors (machines); parts and accessories for conveyors (machines), namely, rollers, idlers, pulleys, drive heads, bin gates, rail clamps, couplings for machines, belts for machines, winches, belt monitoring assemblies, belt cleaners and ploughs, belt lifters, conveyor alignments, impact beds, and belt tracking assemblies; materials handling apparatus being feeding and transfer apparatus for materials handling, chutes (parts of machines), hoppers (mechanical di...