Abstract: A heat sink particular suitable for dissipating heat from lamps. The sink is circular in cross-section having a central core and radial fins extending at an angle to a plane extending through the axis of the core.

Abstract: A pressure relief panel (1) for a vessel is mounted within a frame (11, 17) in the vessel wall. The panel (1) has a flap (3) which bursts open on predetermined over (or under) pressure within the vessel. The periphery of the flap (3) is at least partly defined by discontinuous edge slots or groove (5) with spaced interruptions (7). Outboard of each interruption (7) is a further slot (9) parallel to edge slot (5). Typically the edge slots are inboard of the edge (21) of the frame (11, 17) and sealed by a T-shaped sealing strip (22) which covers both slots.

Abstract: A slide bearing including an assembly of slide pads compressively mounted within a housing. The bearing allows a pipe to be held such that it may slide through the bearing whilst still accommodating lateral and pitch variations.

Abstract: A domed bursting disc adapted to be mounted in a holder and subject to pressure in which the disc is formed of flexible graphite. The flexible graphite may be used in a reverse buckling mode and may be backed by a metal disc. The disc is capable of operations over a wide range of temperatures and in non-oxidizing atmospheres can operate at temperatures up to 3,000.degree. C.

Abstract: A flexible container for potable liquids, the container being of a fabric reinforced rubber body with an internal lining, the lining being bonded to the rubber and being formed of a non-orientated polypropylene. The potable liquid may be wine.

Abstract: A sheet of brazing alloy foil, a clad sheet of aluminum, a brazed large section structure or a method of vacuum brazing large aluminium structures utilizing a brazing alloy based on aluminium and containing 4.5 to 13.5% silicon, 0.1 to 1.5% strontium and up to 3% magnesium.

Abstract: A reverse buckling disc having a central domed region, an outer flange and an integral transitional region interconnecting the flange and the domed central region wherein the included angle of the transitional region is greater than the included angle of the domed region, such that the reversing pressure of the disc is determined by the angle of the transitional region rather than by the height of the dome.

Abstract: A heat exchanger in which liquids are boiled, the heat exchanger being provided with fins in the boiling region, the fins comprising a corrugated layer formed of two sheets, each sheet being apertured, the sheets being in close proximity one to the other such that nucleation of bubbles occurs between the sheets and the bubbles are released by the apertures in the sheets.

Abstract: A container for fluids intended for use on a standard pallet, the container being formed of an outer fibreboard skin with an inner fluid-tight flexible bag, a series of posts each located vertically in the middle of a face of the container between the fibreboard skin and the flexible bag with a series of tension struts interlocating the upper and lower ends of the posts to prevent the bag expanding the container. The container is suitable for handling liquids or dry powder type fluids and can accommodate weights of the order of one ton while being easily dismantleable for despatch or storage. The container can be stacked three or more high.

Abstract: The invention provides an electrode material, and a method for its manufacture, for use in electrochemical reactions comprising bulk titanium oxide having the general formula TiO.sub.x where x is from 1.55 to 1.95 and also electrochemical cells including an electrode formed from such a material.

Abstract: An inner wall for a self-sealing fuel tank in which the inner wall is provided with a plurality of fronds bonded at one end to the wall, the fronds facing towards the inside of the tank such that on penetration of the wall of the tank by a projectile the fronds are carried by the surge of escaping fuel through the wall to become entangled in the hole and choke off escaping fuel.

Abstract: A safety pressure relief device including a pair of annular disc holders adapted to clamp between them a reverse buckling disc, one of the annular discs being located within the other disc and an arrester bar being disposed within the confines of the other disc member.

Abstract: The invention provides a submergeable structure provided with cathodic protection means comprising a flexible impressed current anode assembly including at least one elongate electrode wound around a rope and lying in the depressions between the strands of the rope to provide an anodic region and rope extensions extending from the anodic region in at least two different directions, said extensions being secured to the structure so as to space the anodic region from metal of the structure to be protected. In addition, the invention includes an impressed current anode assembly suitable for use as the above defined cathodic protection means and having an anodic region comprising an elongate electrode wound around an insulating rope which passes through the anodic region and extends therefrom in at least two different directions.

Abstract: A reverse buckling disc pressure relief venting apparatus in which the disc is held in position by an annular abutment against which the edge of the disc is forced when spreading under pressure and in which sealing is performed by means of a compressible seal acting between the disc and a support member for the disc.

Abstract: A method of carrying out an electrolytic process utilizing an electrode formed of a film-forming metal having applied thereto coatings of a precious metal compound capable of decomposing upon heating, said compound being decomposed by heating, and a further layer of precious metal electroplated on to said fired compound layer.