Abstract:
A hybrid rope (40) or a hybrid strand (50) comprising a core element (42, 52), a first (44, 54) and a second (46, 56) metallic closed layer surrounding said core element (42, 52). The core element (42, 52) includes a bundle of synthetic yarns. The first metallic closed layer (44, 54) includes a plurality of first strands of wires helically twisted together with the core element (42, 52) in a first direction. The second metallic closed layer (46, 56) includes a plurality of second wires or strands helically twisted together with said core element (42, 52) and said first metallic closed layer (44, 54) in a second direction. The cross-sectional area of the core element (42, 52) is larger than the total cross-sectional area of the first (44, 54) and second (46, 56) metallic closed layers. A corresponding method of producing such a hybrid rope or hybrid strand is also disclosed.
Abstract:
The present invention provides structure of steel cord in heavy duty tires, in which the adhesive strength between filament and rubber, and penetrating property of rubber are improved by making the twist direction of core and strand different in the steel cord comprising core and strand filament, and by making the pitch or the twist period of core and strand different. In particular, this structure is applied to steel cord of 3+8*d(HT) which is used in heavy duty tires. In this application, twist direction of core filament is in the S direction and twist direction of strand filament is in the Z direction, and the ratio of the pitch of core filament (CP) and the pitch of strand filament (SP) is between 0.50 and 0.94.
Abstract:
A pliable cable (1) having a high torsional rigidity and comprising a core (2) having a high tensile resistance and a core-surrounding sheath (3), wherein the core-surrounding sheath (3) comprises an elastomer which includes at least one fibre package, wherein each fibre package is arranged around the core (2) and wherein the cable (1) has been subjected to a vulcanisation or polymerisation process. It also relates to a method of producing such a cable (1).
Abstract:
The present invention relates to a pliable cable (1) having a high torsional rigidity and comprising a core (2) having a high tensile resistance and a core-surrounding sheath (3), wherein the core-surrounding sheath (3) comprises an elastomer which includes at least one fibre package, wherein each fibre package is arranged around the core (2) and wherein the cable (1) has been subjected to a vulcanisation or polymerisation process. On the other hand, it also relates to a method of producing such a cable (1).
Abstract:
Various subsystems for a submerged or waterborne system used to generate power derived from fast-moving water currents using an induction-type generator system equipped with one or more fin-ring propellers are disclosed. Many of the systems and subsystems shown and described herein are individually suitable for use in systems using conventional generator drive systems and other means of power creation. Means for transmission of power generated by such systems, tethering and mooring systems, and methods for improving system transportation, installation and maintenance are also disclosed.
Abstract:
Rope of a hoisting appliance and method for manufacturing rope of a hoisting appliance (1), which rope of a hoisting appliance comprises a core wire (2) or similar and a plurality of outer wire layers, each of which comprises a plurality of wires (3). The rope (1) comprises at least one such wire layer, essentially all the wires (3) of which are at essentially the same distance from the core wire (2) and contain composite material and of which at least a part are essentially wedge-shaped in the shape of their cross-section. The hoisting appliance rope (1) can comprise at least one such wire layer that comprises wire bundles essentially at the same distance from the longitudinal axis of the rope and which wire bundles comprise wires (3) comprised of composite, and at least a part of which wire bundles are essentially wedge-shaped in the shape of their cross-section. In the method a plurality of wires (3) are directed into at least one outer layer (L) as a part of the rope (1) such that at least a part of the wires (3) forming the rope (1) are composite and in the method at least a part of the composite wires (3) intended to be a part of the rope (1) are coated with polymer and the wires (3) are directed into the proximity of each other as a part of the rope (1).
Abstract:
The present invention provides structure of steel cord in heavy duty tires, in which the adhesive strength between filament and rubber, and penetrating property of rubber are improved by making the twist direction of core and strand different in the steel cord comprising core and strand filament, and by making the pitch or the twist period of core and strand different. In particular, this structure is applied to steel cord of 3+8*d(HT) which is used in heavy duty tires. In this application, twist direction of core filament is in the S direction and twist direction of strand filament is in the Z direction, and the ratio of the pitch of core filament (CP) and the pitch of strand filament (SP) is between 0.50 and 0.94.