Provided is a rubber article-reinforcing steel cord having improved shear fatigue resistance while reducing the weight of the steel cord by using a wire of high tensile strength. The rubber article-reinforcing steel cord 10 is a steel cord 10 having a two-layer twisted structure comprising a core filament 11 composed of a plurality of filaments and a sheath filament 12 composed of a plurality of filaments twisted around the core filament 11, wherein the tensile strength of the core filament 11 is higher than the tensile strength of the sheath filament 12, and the core filament 11 and the sheath filament 12 are twisted together in the same direction and the same pitch.

Provided is a rubber article-reinforcing steel cord having improved shear fatigue resistance while reducing the weight of the steel cord by using a wire of high tensile strength. The rubber article-reinforcing steel cord 10 is a steel cord 10 having a two-layer twisted structure comprising a core filament 11 composed of a plurality of filaments and a sheath filament 12 composed of a plurality of filaments twisted around the core filament 11, wherein the tensile strength of the core filament 11 is higher than the tensile strength of the sheath filament 12, and the core filament 11 and the sheath filament 12 are twisted together in the same direction and the same pitch.

The invention relates to a process for manufacturing a metallic reinforcing cord (10) for tyres for vehicle wheels. The process comprises providing at least one elongated element (15) comprising at least one metallic wire (11) twisted together with at least one textile yarn (20) and removing said at least one textile yarn (20) from said at least one elongated element (15) to form the aforementioned metallic reinforcing cord (10). Such a metallic reinforcing cord (10) has a helical geometry, consisting only of said at least one metallic wire (11) that extends along a helical path. The invention also relates to an apparatus (1) for manufacturing the aforementioned metallic reinforcing cord (10).

A hoisting device rope has a width larger than a thickness thereof in a transverse direction of the rope. The rope includes a load-bearing part made of a composite material, the composite material including non-metallic reinforcing fibers, which include carbon fiber or glass fiber, in a polymer matrix. An elevator includes a drive sheave, an elevator car and a rope system for moving the elevator car by means of the drive sheave. The rope system includes at least one rope that has a width that is larger than a thickness thereof in a transverse direction of the rope. The rope includes a load-bearing part made of a composite material. The composite material includes reinforcing fibers in a polymer matrix.

A hoisting device rope has a width larger than a thickness thereof in a transverse direction of the rope. The rope includes a load-bearing part made of a composite material, the composite material including non-metallic reinforcing fibers, which include carbon fiber or glass fiber, in a polymer matrix. An elevator includes a drive sheave, an elevator car and a rope system for moving the elevator car by means of the drive sheave. The rope system includes at least one rope that has a width that is larger than a thickness thereof in a transverse direction of the rope. The rope includes a load-bearing part made of a composite material. The composite material includes reinforcing fibers in a polymer matrix.

A steel filament for twisting into a steel cord for the reinforcement of rubber articles, which contains a steel substrate that is coated with a coating comprising brass. The coating is different in that the amount of iron at the surface is distinctively higher than that prior steel filaments. The coating has an average iron content of 4 or more atomic percent compared to the total of iron, zinc and copper atoms in the layer extending from the surface to a depth of 3 nanometer below the surface. The steel filaments show an improved adhesion retention under hot and humid conditions and in organic cobalt compound containing rubbers as well as rubbers that are substantially free of cobalt. The lifetime of the rubber article is extended.

A steel filament for twisting into a steel cord for the reinforcement of rubber articles, which contains a steel substrate that is coated with a coating comprising brass. The coating is different in that the amount of iron at the surface is distinctively higher than that prior steel filaments. The coating has an average iron content of 4 or more atomic percent compared to the total of iron, zinc and copper atoms in the layer extending from the surface to a depth of 3 nanometer below the surface. The steel filaments show an improved adhesion retention under hot and humid conditions and in organic cobalt compound containing rubbers as well as rubbers that are substantially free of cobalt. The lifetime of the rubber article is extended.

A lifting member for an elevator system is disclosed, including a rope formed from a plurality of strands comprising liquid crystal polymer fibers, with the strands extending along a length of the lifting member. A first polymer coating is disposed on outer surfaces of the fibers or on outer surfaces of the strands. A second polymer coating disposed over the first polymer coating.

A lifting member for an elevator system is disclosed, including a rope formed from a plurality of strands comprising liquid crystal polymer fibers, with the strands extending along a length of the lifting member. A first polymer coating is disposed on outer surfaces of the fibers or on outer surfaces of the strands. A second polymer coating disposed over the first polymer coating.

A production method for a headline sonar cable characterized by steps of: a. providing a first strength member (14); b. coupling to strength member (14) a conductor (122); c. forming a layer of polymeric material about the combination of strength member (14) and conductor (122) while ensuring that the conductor remains slack; d. forming a flow shield around the layer of polymeric material, thus forming an elongatable internally located conductive structure; and e. braiding a strength-member jacket layer (52) of polymeric material around the elongatable internally located conductive structure while ensuring that the conductor is slack when surrounded by the jacket layer (52). For another embodiment, an optical fibre is wrapped around the exterior of the layer of polymeric material within which is enclosed a braided conductor formed about the first strength member (14). Other embodiments employ further thermo-plastic layers and further sheaths and further conductors.