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