{HEAD ~ An assembly} 3, wherein {TAIL ~ said control means} comprises at least two opposed idler wheels and a biasing means for biasing said opposed idler wheels against opposite sides of the belt spans to assist in preventing spillage of articles from between the belts 
{ HEAD ~ An assembly } 3 , wherein { TAIL ~ said control means } comprises at least two opposed idler wheels and a biasing means for biasing said opposed idler wheels against opposite sides of the belt spans to assist in preventing spillage of articles from between the belts
HEAD HEAD HEAD HEAD HEAD HEAD OTH OTH REL TAIL TAIL TAIL TAIL TAIL TAIL TAIL OTH OTH OTH OTH OTH OTH OTH OTH OTH OTH OTH OTH OTH OTH OTH OTH OTH OTH OTH OTH OTH OTH OTH OTH OTH OTH OTH OTH OTH OTH OTH OTH OTH OTH OTH