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