Preferably, a conveyor is positioned beneath the receptacle, to catch and discharge the material which falls through the screen or {HEAD ~ other classifying openings} to {TAIL ~ a pile} located away from the receptacle 
to
Preferably , a conveyor is positioned beneath the receptacle , to catch and discharge the material which falls through the screen or { HEAD ~ other classifying openings } to { TAIL ~ a pile } located away from the receptacle
OTH OTH OTH OTH OTH OTH OTH OTH OTH OTH OTH OTH OTH OTH OTH OTH OTH OTH OTH OTH OTH OTH HEAD HEAD HEAD HEAD HEAD HEAD HEAD REL TAIL TAIL TAIL TAIL TAIL TAIL OTH OTH OTH OTH OTH