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