An assembly 3, wherein {TAIL ~ said control means} comprises {HEAD ~ 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 
An assembly 3 , wherein { TAIL ~ said control means } comprises { HEAD ~ 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
OTH OTH OTH OTH OTH TAIL TAIL TAIL TAIL TAIL TAIL TAIL OTH HEAD HEAD HEAD HEAD HEAD HEAD HEAD HEAD HEAD HEAD 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