an input section disposed at an upstream region of {TAIL ~ the frame assembly} and defining {HEAD ~ a material flow path} running between the first and second lateral support plates 
an input section disposed at an upstream region of { TAIL ~ the frame assembly } and defining { HEAD ~ a material flow path } running between the first and second lateral support plates
OTH OTH OTH OTH OTH OTH OTH OTH OTH TAIL TAIL TAIL TAIL TAIL TAIL TAIL OTH OTH HEAD HEAD HEAD HEAD HEAD HEAD HEAD HEAD OTH OTH OTH OTH OTH OTH OTH OTH OTH