Abstract: A flexible tube for conveying a mixture of a liquid or solid material containing objects with sharp points, edges or similar projections, the internal wall part of said tube consisting of an elastic material, especially rubber, in which a wearproof material is present in the shape of rod-shaped elements which are provided essentially parallel and at a distance form one another in said internal wall part in such a way that they extend themselves between the inner and the outer surface of said internal wall part, the shortest distance between the most closely spaced wall parts of said elements being at least equal to the greatest dimension (D) of the rod-shaped elements as seen in the radial direction of said elements.

Abstract: Fender system comprising at least one absorbing body of elastomer material, which can be secured directly or indirectly to a quay or a jetty, and a front plate which is parallel in essentially a vertical plane to the plane of the quay or the jetty, and is provided at the other side of the absorbing body, which front plate can come into touch with an object such as a ship moving towards the front plate, the front plate serving for distributing and transferring the loads exerted by this object on the absorbing body, the front plate being made of reinforced concrete so that it can be connected with other parts as e.g. sliding strips during and/or after the casting thereof.

Abstract: A method for the production of a hose of a shape-cured elastomeric material, such as vulcanized rubber, especially an automotive radiator coolant hose, which method comprises the bringing of the hose onto a flexible straight mandrel, sliding the flexible mandrel onto an inner mandrel portion having the finally desired configuration of the hose, curing the hose in this configuration, sliding the flexible mandrel together with the hose off said inner mandrel portion and bringing the flexible mandrel onto a straight auxiliary mandrel and sliding the hose off the mandrel.

Abstract: Fender provided with an all-through hole for its suspension from a quay or other mooring place for ships by a chain or other type of suspension in at least one end of the hole of the fender a plug being provided for protecting the fender wall from damage by the suspension and, respectively plug for such a fender.

Abstract: A shoe cleaning mat employs a plurality of spaced projections on a base layer, all projecting to substantially the same height to provide a stable support. Some of the projections are each provided with an array of radially extending ribs which are progressively deeper in the radially outward direction to provide corresponding increasing elasticity. Two different sizes of such projections are employed and a third type of projection, smaller than the other two, is provided with vertically extending side ribs which are progressively deeper in upward direction.

Abstract: The invention relates to a mattress assembly comprising an elongated framework, a plurality of parallel laths fastened therein in the direction of width and a mattress consisting at least partly of foam material said mattress assembly being characterized in that the central parts (10) of the laths (8) are located in the mattress and surrounded by foam material and in that the two end parts emerge from the mattress.

Abstract: A flexible pipe section for the transportation of a mixture of water and solid material, such as pieces of stone, rock, metal and the like objects having sharp points and/or edges and/or projections offering a high resistance to wear and damage in that the wall of the pipe section lying between couplings at the ends of said pipe section, in order to lengthen its life, comprises a row of abrasion-resisting annular members spaced from each other and extending substantially in between the inner and outer surfaces of the wall of the pipe section and inclined at a sharp angle with the longitudinal axis of said pipe section, a tubular cover of elastic material on the pipe section including said wall, said cover having at least one insert serving to prevent as much as possible tension occurring in the layers of rubber or elastic material connecting said members.

Abstract: Profiled gasket for sealing tunnel segment joints, which is placed in a receiving groove in this segment and which is made of a body of rubber or an elastically deformable synthetic material, said body having at the one side two outer legs, within which there at least two inner legs, a slot being provided between each two legs, at least the upper part of the slot formed by each outer leg and its neighboring inner leg lying within the outer plane of the other side of the body.

Abstract: A pair of coupling collars are fixed on each end of a tubular mandrel. Each such collar carries a plurality of fixed bolt-hole sleeves projecting in a direction axially of the hose. Layers of rubber tape and continuous steel reinforcing cords are sequentially wound in a helical fashion on the mandrel and at the collar are brought radially out along the collar and circumferentially over at least one of the bolt-hole sleeves before passing back over the next tape layer to the other collar where the collar securing winding is repeated and so on until the required structure is built up. After the final outer tape layer is in place a split collar is placed over the hose and bolted on the inside of each of the fixed outer coupling collars to clamp the windings in place. The section is finished off by laying down tape layer seals over the area between the collars. The mandrel with its green hose section is then kettle-cured. Before shipping, polyurethane foam filled float collars of ABS are attached to the section.

Abstract: A waterstop of elastic deformable rubbery material used in concrete structures with a substantially flat middle portion and enlarged side wing anchor sections with elastic or metal anchor strips and sponge material attached to the outer edge of the strips and injection tubes from outside the concrete to the sponge material. The method of installing a waterstop in concrete and after setting injecting a fluid curable or settable material to admit the fluid to the concrete matrix in the region of the sealing extensions.