A hollow building element (10) of plastics material comprises one of more longitudinal ducts (30) and has, at opposite sides thereof, coupling members (32,34), whereby elements are connected together directly or indirectly, wherein an upper coupling member at one side of an element is a hook like member and an upper coupling member at the opposite side of the element include a latch for the hook-like member of another like element. Building structures are created by connecting together such buil...

A structural panel has a structural frame of interconnected structural members of cold-rolled steel material. EPS insulation is integrally moulded around the structural members to a combined depth of the members and wall tie brackets extending outwardly. There is minimal surface area contact between each bracket and a structural member to minimise cold bridging. Wall ties connect to the brackets by engagement of hooks on the wall ties with slots in the brackets, again with minimal area of contac...

A photovoltaic element has a first collecting electrode and a second collecting electrode on a light-receiving surface and has a configuration in which the first and the second collecting electrodes are electrically joined to each other on an insulating member. In the photovoltaic element, a second resin layer having a high compatibility with a component of the insulating member covers a boundary between the insulating member and a first resin layer formed on the light-receiving surface, thereby...

Cover for bedding element suitable for receiving at least one comforter comprising a first main piece of fabric and a seecond main piece of fabric joined together by their lateral borders and at least one holding device which in substance takes on the form of a rectangle parallelepiped open on one of its sides, and suitable for conforming in shape to an extremity of the mattress characterized in that said holding device is an integral part of the cover, and is formed by the first main piece of f...

A hollow building element of plastic material for use in forming roof structures comprises one or more longitudinal ducts and having, at opposite sides thereof coupling members, whereby elements may be connected to each other directly or indirectly, wherein lower coupling members at opposite sides of the element are sized to meet with co-operating lower coupling elements of adjacent elements offset from a central axis parallel to adjacent element sides.

A honeycomb-shaped electric element includes a honeycomb-shaped structural body, the honeycomb-shaped structural body including crossing partition walls defining a number of through-holes arranged thereamong, the through-holes being arranged in at least three lines extending laterally substantially in the same direction, wherein partition wall portions of the through-boles in the at least three lines are made of at least an electrically conductive material and an insulating material such that th...

The invention concerns a building element which is a stud (10) having a number of channels (12). Each channel can receive a cooperating means (14) which can be used to mount a panel or bracket on the stud. The invention also concerns a building element which is a joining clip (16) which can be connected to a panel or bracket. The joining clip includes the cooperating means (14) for mounting a panel or bracket on the stud. The invention also concerns a building element which is a joining element ...

Resistor elements made by co-molding of film-resistors comprising conductive powder and polyimide resin and a diallyl isophthalate substrate containing more than 500 ppm inhibitors have good thermal stability and smooth surfaces, and are especially suitable for long life potentiometers for high temperature uses.

A cured structural building element formed by winding and curing resin saturated glass fibre on a former. The element takes the form of a rod or beam having pairs of projections pointing towards each other at an angle to the rod or beam. The heads of the projections are arranged to lock together upon bending of the rod or beam to form a curved rigid element.

A catalytic element comprising small, thin-walled metal half-cylinders, slightly tapered at one end and perforated to give a large number of generally frusto-conical projections over the entire outer surface. The outer ends of the projections are jagged or burred. A wide variety of active catalytic materials can be applied to the entire surface of these metal members for use in a wide variety of gas and liquid phase reactions.