A pair of tubular risers each having an upper roller therein at {HEAD ~ the head end} of {TAIL ~ the frame} direct arm cord ends to a cord retraction assembly mounted on the carriage 
of
A pair of tubular risers each having an upper roller therein at { HEAD ~ the head end } of { TAIL ~ the frame } direct arm cord ends to a cord retraction assembly mounted on the carriage
OTH OTH OTH OTH OTH OTH OTH OTH OTH OTH OTH OTH 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