Sidewalls positioned on either side of {TAIL ~ the receptacle} stop {HEAD ~ any material} which is flung out to the side, and redirect it down onto the conveyer 
Sidewalls positioned on either side of { TAIL ~ the receptacle } stop { HEAD ~ any material } which is flung out to the side , and redirect it down onto the conveyer
OTH OTH OTH OTH OTH OTH TAIL TAIL TAIL TAIL TAIL TAIL OTH HEAD HEAD HEAD HEAD HEAD HEAD OTH OTH OTH OTH OTH OTH OTH OTH OTH OTH OTH OTH OTH OTH OTH