A spline cord is then disposed in the groove of the side members of the frame by displacing the positioner along the entire length of the grooves in the side members while forcing the spline cord in the groove over {HEAD ~ a portion} of {TAIL ~ the fabric} 
of
A spline cord is then disposed in the groove of the side members of the frame by displacing the positioner along the entire length of the grooves in the side members while forcing the spline cord in the groove over { HEAD ~ a portion } of { TAIL ~ the fabric }
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 OTH OTH OTH OTH OTH OTH OTH OTH OTH OTH OTH OTH OTH HEAD HEAD HEAD HEAD HEAD HEAD REL TAIL TAIL TAIL TAIL TAIL TAIL