a stationary shaft mounted to said roller frame assembly, wherein one of said idler wheel and said guide roller is rotatable mounted to said {HEAD ~ roller frame assembly} about said {TAIL ~ stationary shaft} 
about
a stationary shaft mounted to said roller frame assembly , wherein one of said idler wheel and said guide roller is rotatable mounted to said { HEAD ~ roller frame assembly } about said { TAIL ~ stationary shaft }
OTH OTH OTH OTH OTH OTH OTH OTH OTH OTH OTH OTH OTH OTH OTH OTH OTH OTH OTH OTH OTH OTH OTH OTH OTH HEAD HEAD HEAD HEAD HEAD HEAD HEAD REL OTH TAIL TAIL TAIL TAIL TAIL TAIL