Abstract: A helmet comprises a helmet lining; a helmet shell and an impact absorbing crash element for interposition between the helmet lining and a helmet shell, the helmet lining comprising a curved first part adapted to cover the nape of the neck and a curved second part adapted to cover the forehead, the first and second part being interconnected and arranged to be detachably secured to the crash element. The helmet lining is an example of a number of uses of an item of headgear to which accessories can be attached.

Abstract: A connector for connecting a pipe to a hose comprises a cylindrical protrusion on the pipe supporting an outwardly flared frusto-conical nipple. The hose is to be placed over the nipple and a sleeve is provided having a corresponding frusto-conical bore with internal threading to enable the sleeve to be tightened on the nipple. The cone angle of the bore is not the same as the cone angle of the nipple.

Abstract: An accessory support member in which a flat plate is provided with two portions adapted to embrace the rim of a variety of types and sizes of protective helmet. The support member is provided with a variety of removable accessories mounted by connections which enable movement of these accessories and for normal uses.

Abstract: A drive system for a movable closure member movable along rail sets carried on opposed sides of the frame of a structure includes a rail set on each side of at least one pair of opposed sides of the frame. Each rail set includes first and second laterally offset toothed sections. Each first section includes a horizontal segment and an inclined segment whereas each second segment includes a vertical segment and an inclined segment which has at least a portion thereof in juxtaposed side-by-side relation with the inclined segment of the first section. An electric motor has a drive shaft that extends transversely of the rail sets and carries a first gear wheel coaxially therewith at each end. Each first gear wheel carries a second and smaller gear wheel eccentrically thereon. The first and second gear wheels have a common point of tangency.

Abstract: A device for holding an ear defender includes a housing with a space therein to accommodate a loop which forms part of a supporting member for an ear defender. The space is defined by a bottom wall, a rear wall, and a front wall, the front wall having notches to receive part of the supporting member connected to the loop. The loop is provided with two journalling parts which are arranged in line with each other and which are arranged in a groove on the inside of the front wall to thereby provide a journalling axis for the supporting member. An aperture is formed in the housing to extend through the bottom wall, and a central pin is positionable in the aperture for the purpose of affixing the device to a helmet. A lever is pivotably journalled with one end in the space for housing near the inside of the rear wall and the other end arranged to receive a transverse spring section of the loop.

Abstract: A clothes-hanger is disclosed having a fixed hook member which pivotably supports a second hook member. The second hook member can pivot to a position in which it locks the hanger on a rail, but can be released by operating handle portions provided on the hook members.

Abstract: A method of providing a moisture proof or moisture resistant foundation insulation for buildings involves digging a narrow ditch around the building, providing an insulating foil in the ditch, providing drainage material in the bottom of the ditch and refilling the ditch. Preferred foils are of plastics material with an expanded layer on at least one side.

Abstract: A roof construction for a single level building having a relatively large central area and peripherally arranged living and storage quarters. The roof construction includes sets of trusses each of which includes at least two generally triangular trusses. The trusses of each such set include a pair of legs angularly inclined relative to each other and a third leg longer than either leg of the pair and connected to the other two legs. The trusses are supported on a pair of vertical supports such that one of the pair of legs rests horizontally upon such vertical supports and the other leg of the pair extends upwardly in cantilevered relation above the central area of the building. The third and longest leg of each truss extends downwardly forming an acute angle with the horizontal and providing a support surface for a roof covering.

Abstract: A kitchen cupboard assembly has a lower floor mounted cupboard unit with an upper working surface and an upper wall mounted cupboard unit which is mountable thereabove. A frame is hinged about a horizontal axis between a lower position in which it rests on the working surface and a raised position in which it forms a front door of at least one cupboard of the upper cupboard unit. The upper surface of the frame is used to support an item of kitchen machinery such as a domestic mixer, or the like, and this is folded away into the upper cupbard when not in use.