| 摘要 |
1,180,705. Magnetically supported doors, windows &c. GEORGIA-PACIFIC CORP. 1 Aug., 1968 [3 Aug., 1967], No. 36725/68. Heading E1J. In a magnetically supported sliding door, window or other panel the slidable wing 12 is mounted on a floating shoe 44 by means at each lower end of adjustable support means 47 comprising a threaded stud 49 screwing into a block 48 mounted in the wing frame 40-41, and carrying a control nut or ring 50 in a fixed vertical position thereon, the nut or ring 50 being provided with spaced circumferential holes 51 for manipulation purposes by a tool to turn the screw to adjust the height of the wing frame at each end relative to the shoe. Between the two blocks 48 is a block (54 Fig. 4) of foamed polyurethane, cellular rubber or the like to spread the load of the wing over the length of the shoe 44. The shoe also has set screws 61, Fig. 5 at spaced intervals on each side for adjusting the lateral position of the shoe with respect to the guide flanges 28, 29 of the sill 25 which is floatingly mounted on a thin resilient pad or layer 3f on the sill proper 13. Resilient guide strips 59 are inserted on the inner faces of the shoe to contact the flanges 28, 29 of the floating sill. The upper rail of the main frame is in two parts 17, 18 secured together by a heat insulation connection 19. A slidable fly screen 22 may be provided on the outer side 17 as shown. |
