E - Fixed Constructions – 06 – B
Patent
E - Fixed Constructions
06
B
160/5
E06B 9/06 (2006.01)
Patent
CA 1045540
ABSTRACT OF THE DISCLOSURE A folding screen formed by a plurality of success- ively hinged, rigid, radiation-controlling panels supported for horizontal, planar movement in a pair of parallel, overhead tracks and operated by a flexible drive member extending along the track and connected to the lead panel. Since each panel is supported in the track only at its ends, each panel must possess sufficient rigidity to permit hinged, side-by-side coaction of interconnected panels from a stacked, generally vertical relationship to a generally horizontal, planar relationship. To enable the screen to be collapsed from an extended planar position without jamming, alternate hinges are vertically upwardly displaced. In a particular embodiment the hinges are provided with rollers at the ends thereof. Rollers for the lower and upper hinges travel in lower and upper levels, respectively, of each overhead track. A particularly useful elongated panel for a radiation screen under a light-permeable building componet comprises an arcuate extrudate bounded at the sides by relatively thick discontinuous ribs, each of sufficient thickness to have an axial bore adapted to journal a rod for hingedly connecting adjacent panels for horizontal, side-by- side coaction from a collapsed, distensible stack of plural panels into a extended, collapsible radiation screen, and vice versa.
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