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