Abstract: Disclosed are toy systems for creating and fixing an array of polygon shaped plastic beads together to form a design. The toy systems can include a tray, a plurality of beads, and a template. The plurality of beads can engage pins on the surface of the tray. Each of the beads can be configured to fuse or adhere to adjacent beads upon drying after the application of liquid to the plurality of beads engaged to the tray, forming a fixed array of beads. The template can be configured to engage the pins of the tray between the tray and the plurality of beads. The template can provide a design for the plurality of beads and can be used to remove a fixed or loose array of beads from the tray.

Abstract: Disclosed are toy systems for creating and fixing an array of polygon shaped plastic beads together to form a design. The toy systems can include an upper tray, a lower tray, a plurality of beads, and a template. The plurality of beads can engage pins on the surface of the lower tray. Each of the beads can be configured to fuse or adhere to adjacent beads upon drying after the application of liquid to the plurality of beads engaged to the lower tray, forming a fixed array of beads. The upper tray can be configured to engage the pins of the lower tray between the lower tray and the plurality of beads. The upper tray can be used to remove a fixed or loose array of beads from the lower tray. The template can provide a design for the plurality of beads.

Abstract: Disclosed are toy systems for creating and fixing an array of polygon shaped plastic beads together to form a design. The toy systems can include a tray, a plurality of beads, and a template. The plurality of beads can engage pins on the surface of the tray. Each of the beads can be configured to fuse or adhere to adjacent beads upon drying after the application of liquid to the plurality of beads engaged to the tray, forming a fixed array of beads. The template can be configured to engage the pins of the tray between the tray and the plurality of beads. The template can provide a design for the plurality of beads and can be used to remove a fixed or loose array of beads from the tray.

Abstract: A gas burner (10) includes an internal cavity (20) for receiving a gas and air mixture and an external substantially cylindrical wall (16) surrounding the cavity (20). The wall (16) is provided with through holes (32) for allowing gases to pass from the cavity (20) to an exterior burner (10) for combustion. The wall (16) is made up of one or more wall elements (30) in the form of sheets of material shaped so that together they form a substantially cylindrical shape. The wall includes at least one join between adjacent edge portions (34a, 34b) of the wall elements, the join being welded and at least the part of one edge portion (34a) overlying at least a part of the other edge portion (34b) in the region of the join.

Abstract: A gas burner (10) includes an internal cavity (20) for receiving a gas and air mixture and an external substantially cylindrical wall (16) surrounding the cavity (20). The wall (16) is provided with through holes (32) for allowing gases to pass from the cavity (20) to an exterior burner (10) for combustion. The wall (16) is made up of one or more wall elements (30) in the form of sheets of material shaped so that together they form a substantially cylindrical shape. The wall includes at least one join between adjacent edge portions (34a, 34b) of the wall elements, the join being welded and at least the part of one edge portion (34a) overlying at least a part of the other edge portion (34b) in the region of the join.

Abstract: A gas fire appliance having a casing with a rear face at which a plurality of alumina flame effect burner tubes are supported, the tubes extending through a ceramic deflector plate supported over the rear face and lying behind a solid fuel simulating element which is relatively steeply raked to be visible through an adjacent front glass panel of the appliance. A dual-section main heater burner with a pair of metallic flame effect burners secured to one side thereof is positioned below the solid fuel simulating element, the flames therefrom being deflected upwardly by the plate. A gas control knob is operable to turn on all the burners or to select various ones thereof only as required. The steep rake of the fuel bed ensures that the visual appearance of the appliance is enhanced by fully presenting the working area and the alumina burner tubes positioned in the high temperature fuel bed ensure an effective living flame effect of high efficiency.

Abstract: A hot water boiler, particularly for central heating and hot water supply in small dwellings where an economic unit with an output less than about 0.3 megajoule/hr (30,000 but/hr) is required, has a compact, cylindrical heat exchanger (110) with central combustion chamber (20) and forced draught. Water circulates through double-pass longitudinal waterways (12) in the monobloc heat exchanger body (111), in crossflow relationship to hot gases forced through short, narrow, annular radial passages (23). One or more walls (22) separating these passages may be replaced by a hollow wall within which water can circulate, increasing the heat exchange surface available.