The conveyor has {HEAD ~ carrying rods} on which the hooks are suspended, with at least one descending discharging rod by which {TAIL ~ the material} slides off under gravity 
The conveyor has { HEAD ~ carrying rods } on which the hooks are suspended , with at least one descending discharging rod by which { TAIL ~ the material } slides off under gravity
OTH OTH OTH HEAD HEAD HEAD HEAD HEAD HEAD OTH OTH OTH OTH OTH OTH OTH OTH OTH OTH OTH OTH OTH OTH OTH OTH TAIL TAIL TAIL TAIL TAIL TAIL OTH OTH OTH OTH