In addition, {HEAD ~ two opposed idler wheels} bias {TAIL ~ the spans} together above the horizontal flat registration plate at about 3/5 of the travel distance through the assembly 
bias
In addition , { HEAD ~ two opposed idler wheels } bias { TAIL ~ the spans } together above the horizontal flat registration plate at about 3/5 of the travel distance through the assembly
OTH OTH OTH HEAD HEAD HEAD HEAD HEAD HEAD HEAD HEAD REL TAIL TAIL TAIL TAIL TAIL TAIL OTH OTH OTH OTH OTH OTH OTH OTH OTH OTH OTH OTH OTH OTH OTH OTH OTH