Abstract: An assembly (14, 16) for securing two juxtaposed panels (64, 66) to a structure (74), each panel including a joining flange (68, 70) located at, or adjacent to, respective juxtaposed edges thereof. The assembly includes a retaining member (14) having a substantially planar surface (24) supporting at opposite edges thereof respective first flanges (26, 28) and a clamping member (16) having two spaced-apart legs (48, 40) depending from a web (36). Second flanges (46, 48) are each supported on a facing internal surface of a respective one of the legs so as to extend away from the web. Each leg engages a respective exposed surface of an adjacent joining flange, the first and second flanges being oriented in opposite directions so as to interlock when the clamping member is mounted on the retaining member and thereby limit lateral separation of the legs.

Abstract: An assembly (14, 16) for securing two juxtaposed panels (64, 66) to a structure (74), each panel including a joining flange (68, 70) located at, or adjacent to, respective juxtaposed edges thereof. The assembly includes a retaining member (14) having a substantially planar surface (24) supporting at opposite edges thereof respective first flanges (26, 28) and a clamping member (16) having two spaced-apart legs (48, 40) depending from a web (36). Second flanges (46, 48) are each supported on a facing internal surface of a respective one of the legs so as to extend away from the web. Each leg engages a respective exposed surface of an adjacent joining flange, the first and second flanges being oriented in opposite directions so as to interlock when the clamping member is mounted on the retaining member and thereby limit lateral separation of the legs.

Abstract: The invention provides a panel unit of controllable radiation transmissivity, including a housing constituted by a front, radiation-receiving panel and a rear panel, the panels being spaced apart and connected to one another by connecting means; a plurality of rotatable radiation-blocking members disposed between the front panel and the rear panel, the members being rotatable from one angular position in which the radiation-blocking members are adapted to substantially block the passage of light through the panel unit, to a selectable plurality of other angular positions in which the radiation-blocking members are adapted to provide a plurality of differing radiation transmissivities; characterized in that first guiding surfaces for the rotatable radiation-blocking members are disposed inside of, and extend across, the housing.

Abstract: The invention provides a panel unit of controllable radiation transmissivity, including a housing constituted by a front, radiation-receiving panel and a rear panel, the panels being spaced apart and connected to one another by connecting means; a plurality of rotatable radiation-blocking members disposed between the front panel and the rear panel, the members being rotatable from one angular position in which the radiation-blocking members are adapted to substantially block the passage of light through the panel unit, to a selectable plurality of other angular positions in which the radiation-blocking members are adapted to provide a plurality of differing radiation transmissivities; characterized in that first guiding surfaces for the rotatable radiation-blocking members are disposed inside of, and extend across, the housing.

Abstract: The invention provides a panel (2) of controllable radiation transmissivity, including a plurality of tubular cells (4), in at least some of which cells is rotatably mounted at least one radiation-blocking member (6), at least one portion of at least one surface of which is substantially opaque, and means (8) for rotating the radiation-blocking member (6) inside the tubular cells (4), wherein the radiation-blocking member (6), when rotated, is adapted, in at least one angular position, to substantially block the passage of radiation through the panel (2), and in a plurality of other, selectable, angular positions, to provide a plurality of differing radiation transmissivities.

Abstract: An extruded panel unit for constructional purposes having two sheet-like major surfaces interconnected and spaced apart by an internal honeycomb structure which divides the space between the major surfaces into a plurality of subspaces. The extruded panel unit may also have joining flanges to allow for connection to other extruded panel units.

Abstract: An extruded, panel unit for constructional purposes, having two sheet-like major surfaces interconnected and spaced apart by a plurality of ribs and intermediate surfaces dividing the space delimited by the major surfaces into a plurality of sub-spaces. In cross-section, the sheet-like major surfaces and the rib and intermediate surfaces form a truss-like structure and there are provided more than three sub-spaces across a plane extending substantially normal to and connecting the major surfaces.