Abstract:
The present invention is related to a yarn construction comprising fibres A and at least one indicator fibre, wherein the indicator fibre comprises fibre B and an elemental metal at least partially coating the surface of the fibre B, wherein fibre A and fibre B are dissimilar ultra high molecular weight polyethylene (UHMWPE) fibres. The yarn constructions may be available in different forms, amongst others in ropes, straps, slings, fabrics and synthetic chains.
Abstract:
A metal cord has cylindrical layers formed of an internal layer, an intermediate layer, and an external layer. The in internal layer includes M threads. The intermediate layer includes N threads wound in a helix around the internal layer. The external layer includes P threads wound in a helix around the intermediate layer. An inter-thread distance, D2, between the threads of the intermediate layer is greater than or equal to 25 μm. An inter-thread distance, D3, between the threads of the external layer is greater than or equal to 25 μm.
Abstract:
A stranded wire whose deformation or breakage is suppressed so that sufficient safety is ensured, and a guidewire employing the stranded wire. The stranded wire includes a core element wire and side element wires wound so as to cover a circumference of the core element wire, the core element wire and the side element wires being stranded together. The side element wires include at least a pair of first side element wires arranged point-symmetrically around the core element wire, and a second side element wire having a tensile strength lower than a tensile strength of the core element wire and a tensile strength of the first side element wires.
Abstract:
The invention relates to a high strength fibers comprising a coating of cross-linked silicone polymer, and ropes made thereof. The fibers are preferably high performance polyethylene (HPPE) fibers. The coating comprising a cross-linked silicone polymer is made from a coating composition comprising a cross-linkable silicone polymer. The rope shows markedly improved service life performance in bending applications such as cyclic bend-over-sheave applications. The invention also relates to the use of a cross-linked silicone polymer in a rope for an improvement of bend fatigue resistance.
Abstract:
A high strength, high temperature resistant roundsling for use as a restraint safety device. The roundsling uses a blend of fibers having characteristics of high strength, improved heat resistance, low weight, and improved handibility, as compared to roundslings assembled from non-blended fibers. Use of the roundslings of the present invention to secure sections of pipeline systems, will assist to maintain safety and reduce failure conditions in such pipeline systems that are subject to higher pressures and elevated temperatures. An exemplary and preferred range of the fiber blend for the inventive roundsling device are within a range of 30-70% Para-Aramid fibers and 70-30% LCP fibers, respectively. An exemplary embodiment of the present invention that has been tested is a roundsling manufactured to include a blend of fibers within the approximate range of 55-65% Para-Aramid and 45-35% LCP.
Abstract:
A securing device is provided comprised of a reactive fiber component and at least one of a terminating fiber component and an initiating fiber component. The reactive fiber component includes at least one of the following: an undrawn polymer fiber and a substantially undrawn polymer fiber, wherein the first reactive fiber component is operative to stretch responsive to a load. The terminating fiber component is in a compressed state and is operative to elongate to a length at which the terminating fiber component is operative to prevent further stretching of the first reactive fiber component responsive to the load. The initiating fiber component is operative to break responsive to a predetermined force and permit the first reactive fiber component to stretch responsive to the load.
Abstract:
An elevator support, such as a cable or a belt connected with an elevator car or counterweight, has load-bearing synthetic material strands, which are reinforced by the introduction of a second phase and have a higher modulus of elasticity than that of the unreinforced strands.
Abstract:
A rope structure comprising a plurality of rope subcomponents, a plurality of bundles combined to form the rope subcomponents, a plurality of first yarns and a plurality of second yarns combined to form the bundles. In one embodiment, the first yarns have a tenacity of approximately 25-45 gpd and the second yarns have a tenacity of approximately 6-22 gpd. In another embodiment, the first yarns have a breaking elongation of approximately 2%-5% and the second yarns have a breaking elongation of approximately 2%-12%.
Abstract:
A wire rope including at least one metal wire and at least one fluoropolymer fiber. Preferably, the fluoropolymer fiber is present in an amount less than about 25 weight %, and in alternative embodiments less than 20 weight %, 15 weight %, 10 weight %, and 5 weight %. The fluoropolymer fiber is preferably PTFE, and most preferably expanded polytetrafluoroethylene (ePTFE). The wire rope is useful in tensioned and bending applications.
Abstract:
A rope comprising a plurality of bundle groups, each of said bundle groups having a periphery and comprising a plurality of high strength fibers, at least one low coefficient of friction fiber disposed around at least a portion of the periphery of at least one of the bundle groups.