an upper output roller and a lower output roller, the upper and lower output rollers fixedly mounted in {HEAD ~ relation} to {TAIL ~ the front stop mechanism} and translatable therewith 
to
an upper output roller and a lower output roller , the upper and lower output rollers fixedly mounted in { HEAD ~ relation } to { TAIL ~ the front stop mechanism } and translatable therewith
OTH OTH OTH OTH OTH OTH OTH OTH OTH OTH OTH OTH OTH OTH OTH OTH OTH OTH OTH HEAD HEAD HEAD HEAD HEAD REL TAIL TAIL TAIL TAIL TAIL TAIL TAIL TAIL OTH OTH OTH