Abstract:
The invention provides a composite rope (10, 20) and mesh net (50) made therefrom. The composite rope (10, 20) comprises a plurality of outer fibre strands (14, 24) twisted or braided around an inner elongate core (12, 22) so as to provide the rope (10, 20) with increased durability. The inner elongate core (12, 22) extends at least partially in a helical configuration, and may comprise an expanded metal wire core having a helical configuration, alternatively a number of steel or synthetic elongate strands or filaments (26) wound to form a twisted cable in which each strand or filament (26) has a helical configuration. The mesh net (50) comprises a number of lengths of rope (52) knotted together at regular spaced intervals, with the net (50) being stretched and heat set during manufacture, and wherein the mesh net (50) includes at least some lengths of composite rope (1 0, 20) in accordance with the invention. The invention further provides for methods of using the mesh net (50).
Abstract:
The present invention provides a tether (1) containing strands (2) comprising high strength fibers and a plurality of conductors (4), wherein each conductor (4) is separated from any other conductor along its length by at least one of said strands. The tether (1) can be used for transporting electrical power from a high altitude wind energy generator or a wave and tidal energy generator to a ground station.
Abstract:
According to the invention, a high-security cable may be produced which can support extremely high loads within a relatively short period of time, by means of a cable made from a mixture of various synthetic yarns or synthetic yarns and metal wires. Said synthetic yarns and metal wires shall be present in the cable in three different production forms, namely in one form as twisted or untwisted yarns or wires, in a second form as twists and in a third form as cords. The twists and the cords are produced from twisted or untwisted yarns or wires. According to the invention, a twist is made from two yarns and a cord from three yarns. Said high-security cables are advantageously applied to automobile racing for the attachment of a wheel to the chassis of the racing car and for the production of security catch cables of application for piste security as temporary avalanche catch nets or temporary falling stone protection nets.
Abstract:
A steel cord characterised by a zigzag filament which is zigzagged two dimensionally or in a plane by a zigzag pitch length (Pw) and a zigzag wave height (h) and made up of straight segments each extending between zigzag peak points, each of the zigzag pitch lengths (Pw) and zigzag wave heights (h) being constant along the longitudinal direction thereof and either a second zigzag filament of the same type but having a different pitch length (Pw) or a straight filament such that the cord has an open construction so that rubber can penetrate it. The cord may be a single bunch or a twisting together of two or more bunches each comprising zigzag filaments. The cord may have zigzag filaments of at least two different zigzag pitch lengths. In each of these constructions the result is to give an open cord construction and the invention also includes a tyre incorporating such cord in the carcass breaker or the like.
Abstract:
A two-piece tire assembly has a removable tread belt (12) for installing about the circumference of a tire carcass (14). The tread belt (12) has at least a pair of belt layers (36, 38, 40), and one layer (42) comprising inextensible reinforcing cables (44, 94, 80, 102, 114) inclined at substantially zero degrees relative to the circumferential direction of the tire assembly. The cables in zero degree ply have a tensile strength of at least 27,500 N.
Abstract:
In a rope comprising a bundle of wires (21, 31, 32) each of which is adapted to bear a tensile load to be borne by the rope, predetermined one (32) of the wires is configured to be at least partially breakable by applying tension and flexure to the rope, before an at least partial breakage of a rest of the wires (21, 31) other than the predetermined one (32) of the wires by applying the tension and flexure to the rope.
Abstract:
A steel strand (10) comprises a steel core wire (12). This steel core wire (12) is surrounded by steel layer wires (14) that are twisted around the steel core wire (12). The steel core wire (12) is covered with a thick corrosion resistant core coating (16) provided by strip cladding or by metal extrusion. The steel layer wires (14) are covered with a thin corrosion resistant layer coating (18) provided by a hot dip operation or by an electroplating or chemical plating process. The steel strand (10) is compacted so that said steel layer wires (14) have a non-circular cross-section and that the thick corrosion resistant core coating fills the interstices between the steel core wire (12) and the steel layer wires (14) in order to give the steel strand (10) an improved corrosion resistance and increased lifetime.
Abstract:
The present invention relates to a reinforcement mesh (1) for use in construction, the mesh (1) comprising a plurality of longitudinally and transversely extending reinforcing members (2), wherein either of the longitudinal or the transverse reinforcing members (2), each comprises a rebar comprising strands (3) of material twisted together, the strands being parted at spaced locations along their length by the other of the longitudinal or transverse rebars which extend through, and are secured at, the spaced locations of the parted strands (4). The present invention also relates to a method for producing a reinforcement mesh (1) for use in construction
Abstract:
A tyre for vehicle wheels comprises a support structure and a tread band arranged in a radially outer position with respect to the support structure. The support structure comprises at least one reinforcing layer including a plurality of hybrid reinforcing cords (10′) each having a metallic wire (21) twisted together with a multifilament textile yarn (22) comprising a plurality of filaments (23). In any cross section of each of said hybrid reinforcing cords (10′), the metallic wire (21) is at least partially embedded in the filaments (23) of the multifilament textile yarn (22).