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 {HEAD ~ the spline cord} in the groove over {TAIL ~ a portion} of the fabric 
over
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 { HEAD ~ the spline cord } in the groove over { TAIL ~ a portion } of 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 HEAD HEAD HEAD HEAD HEAD HEAD HEAD OTH OTH OTH REL TAIL TAIL TAIL TAIL TAIL TAIL OTH OTH OTH