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