Abstract:
The strand comprises a group of twisted metal wires, a plastic sheath and a pliant filling compound which fills internal interstices between the twisted wires of the group and a peripheral interstice lying between the periphery of the group and the inner face of the sheath. This peripheral interstice has, in a cross section of the strand, an area of between Pnullemin and 0.6nullS2, where P is the external perimeter of the group of wires, eminnull0.05 mm and S2 is the cumulative area of the gaps lying between the periphery of the group and the smallest circle within which the group is inscribed.
Abstract:
A reinforcement ply for an elastomeric article comprises a plurality of parallel extensible reinforcing members laid at a substantially constant end count perpendicular to their longitudinal direction, the ply having different extensibilities in the longitudinal direction of the reinforcing members in different parts of the ply. The reinforcing members are preferably made such that they each have at least one filament which is displaced perpendicularly from the longitudinal centerline of the reinforcing member in one part of the reinforcing member compared to another part. A tire may include the reinforcement ply as a hoop or band in the ground contacting tread region.
Abstract:
Steel cables are utilized for reinforcing a wide variety of rubber articles. For instance, pneumatic tires are normally reinforced with steel tire cords. It is important for such reinforcing cables to exhibit good fatigue and corrosion resistance. It has been unexpectedly found that the fatigue and corrosion resistance of such cables can be improved by incorporating syndiotactic-1,2-polybutadiene into the interstices between the steel filaments in such cables. This invention more specifically relates to a cable for reinforcing rubber articles having improved fatigue and corrosion resistance which is comprised of a plurality of steel filaments and syndiotactic-1,2-polybutadiene, wherein the syndiotactic-1,2-polybutadiene is dispersed within interstices between said steel filaments.
Abstract:
A metallic reinforcing cord structure suitable for reinforcing elastomeric articles characterized by a high compression modulus which increases resistence to buckling and fatigue failure and by improved adherence between the core and the elastomeric article in which it is embedded is disclosed. The cord comprises a core consisting of two equal diameter brass plated steel wires and an outer layer of six equal diameter brass plated steel wires disposed about the core wires, the diameter of the outer layer wires being between about 1.23 and about 1.43 times the diameter of the core wires. The two core wires are twisted about one another and the outer wires are twisted about the core. Both the core and the outer wires are laid in the same direction.This abstract is not to be taken either as a complete exposition or as a limitation of the present invention, however, the full nature and the extent of the invention being discernible only by reference to and from the entire disclosure.
Abstract:
A wire rope or strand is impregnated with a plastic foam type internal sealant to cushion the wires and strands and provide corrosion protection by (a) initially impregnating the strand with a foamable plastic composition, (b) heating the strand under ''''free-blowing'''' conditions to foam the plastic composition uniformly about the wires or strands, and (c) preferably finally collapsing the foam material upon the surface of the strand by means of a cold die to form a dense outer plastic jacket. The foamable plastic composition before foaming serves as a lubricant within the stranding die so that no additional stranding lubricant is required. The resulting plastic impregnated wire rope or strand has uniform low interwire foam filler densities. Alternative constructions of impregnated rope or strand can be made.
Abstract:
The invention relates to a laid cable (1-1b), in particular a laid fiber cable (1-1b) or a laid hybrid cable, comprising at least one core strand or a laid core cable (2-2b) and at least one outer strand (7-7b) surrounding the core strand or the core cable (2-2b), the core strand, the core cable (2-2b) and/or the at least one outer strand is composed of at least one fiber line (9-9b, 10-10b). The at least one fiber line (9-9b, 10-10b) is beneficially made of a composite material having reinforcing fibers (12), the reinforcing fibers (12) of which composite material are laid to form at least one reinforcing line (11). Advantageously, a laid cable which is stable under transverse pressure is provided. The invention also relates to a strand, to a method for manufacturing a cable and a strand, to an apparatus for producing a cable and/or a strand, as well as an apparatus with a drum drive, said apparatus comprising a cable according to the invention.
Abstract:
A tire having a radial carcass reinforcement, composed of at least one layer of metal reinforcing elements, the said tire comprising a crown reinforcement, itself topped radially by a tread, the said tread being joined to two beads via two sidewalls. The metal reinforcing elements of at least one layer of the carcass reinforcement are cords exhibiting, in the “permeability” test, a flow rate of less than 20 cm3/min and at least one layer of the carcass reinforcement is provided, on at least one face, with textile threads exhibiting, in the “permeability” test, a flow rate of between 1 and 3 cm3/min.
Abstract:
Elevator, which includes at least an elevator car and a device for moving the elevator car, preferably along guide rails, and a counterweight, and one or more ropes, which rope connects the elevator car and the counterweight and is separate from the supporting function and passes around a diverting pulley mounted on the bottom end of the elevator hoistway. The rope comprises a power transmission part or a plurality of power transmission parts, for transmitting power in the longitudinal direction of the rope, which power transmission part is essentially fully of non-metallic material.
Abstract:
A cable, which may be produced by the method described herein, comprises a cable with a core jacket comprising a predetermined cable length where the core jacket comprises a thermoplastic material comprising a memory characteristic which changes based on temperature, a set of core components, disposed within the core jacket, which comprise the predetermined length, and a strength member disposed within the core jacket intermediate the core components and the core jacket. The strength member comprises a selectively activated pre-impregnated uncured synthetic material adapted to be cured while in production, the strength member comprising a length substantially equal to the predetermined length.