{TAIL ~ an outer chamber} having an inlet connected to the conduit for receiving {HEAD ~ the articles} therefrom, and an outlet for discharging the articles collected from the conveyor 
{ TAIL ~ an outer chamber } having an inlet connected to the conduit for receiving { HEAD ~ the articles } therefrom , and an outlet for discharging the articles collected from the conveyor
TAIL TAIL TAIL TAIL TAIL TAIL TAIL OTH OTH OTH OTH OTH OTH OTH OTH OTH HEAD HEAD HEAD HEAD HEAD HEAD OTH OTH OTH OTH OTH OTH OTH OTH OTH OTH OTH OTH OTH