A torque coil (two-layer coil structure) of the disclosed embodiments includes an inner coil formed by spirally winding metal wire, and an outer coil arranged to be in close contact with the outer periphery of the inner coil and formed by spirally winding metal wire. A winding direction of the inner coil and a winding direction of the outer coil are opposite from each other, and when the torque coil is twisted in the circumferential direction in which the diameter of the inner coil is increased, a change amount of the diameter of the outer coil is larger than a change amount of the diameter of the inner coil. The two-layer coil structure has high twisting rigidity, thus suppressing the occurrence of kinks due to rotational resistance.

A rope and an elevator. The rope comprises a core, an outer layer of strands, comprising at least four outer strands, and an elastomeric coating creating at least the outer surface of the rope.

A belt for suspending and/or driving an elevator car includes a plurality of cords. Each cord includes a plurality of wires and at least one yarn thread disposed at an outer periphery of the plurality of wires. An elastomeric jacket substantially retains the plurality of cords. The at least one yarn thread is configured to promote adhesion of the elastomeric jacket to the plurality of cords and reduce fretting of the plurality of wires. A method of forming a belt includes arranging a plurality of wires into a cord, arranging one or more yarn threads at an outer periphery of the plurality of wires, arranging a plurality of cords into a selected arrangement and applying an elastomeric jacket to the cords to retain the cords. The one or more yarn threads are configured to promote adhesion of the elastomeric jacket to the cords and reduce fretting of the wires.

A plurality of wire elements for use in an energy recovery device comprising Shape Memory Alloy or other Negative Thermal Expansion (NTE) material, wherein at least one wire element is fixed at one end and free to move at a second end, such that the wire elements are arranged adjacently and are in friction or interference contact with each other and are secured at the outer perimeter of wires utilising a securing means. In such arrangement, during the operation of the bundle arrangement in a heat engine system, the plate elements act to transmit the aggregated force generation of the wire grouping and thus usefully recover and transmit power.

[Object] A hollow stranded wire line, for manipulation, having an excellent torque transmittability is provided.

[Solution] A hollow stranded wire line 2 for manipulation is a hollow stranded wire line 2 that is advantageously used as a stranded wire line for manipulation in a medical instrument, and a side wire 4 or a side strand which is an outermost layer has a forming rate that is greater than 100% and not greater than 110%. The side wire 4 or the side strand having been formed has a spiral shape in which a flatness that is an aspect ratio obtained by a major axis being divided by a minor axis is preferably not less than 1.01 and preferably not greater than 1.10.

[Object] A manipulation rope having an excellent torque transmittability is provided.

[Solution] A manipulation rope 2 is a rope 2 that is advantageously used as a manipulation rope for a medical instrument, and includes a side wire 6 or a side strand which is an outermost layer, the side wire 6 or the side strand having a spiral shape in which a flatness that is an aspect ratio obtained by a major axis being divided by a minor axis is greater than 1.00 and not greater than 1.10. An elongation of the rope at a time when a tensile load that is 1.0% of a breaking load is applied, is preferably not less than 0.04% and preferably not greater than 0.10%.

Auger conveyors most commonly employed in industries where the horizontal and/or vertical transfer of solids or semi-solid materials is required. Auger conveyors employ a rotating helical screw blade, commonly known as fighting, which rotates about on an inline axis within an inline conduit. Described herein is an auger conveyor which does not need to follow the traditional rule of rotating about on an inline axis. A flexible wire rope shaft is employed to rotate about on an infinite number of axes thereby facilitating an auger conveyor connected to the flexible wire rope shaft through buttons, to traverse a non-linear path.

[Object] A manipulation rope having an excellent torque transmittability is provided.

[Solution] A manipulation rope 2 is a rope 2 that is advantageously used as a manipulation rope for a medical instrument, and includes a side wire 6 or a side strand which is an outermost layer, the side wire 6 or the side strand having a forming rate that is greater than 100% and not greater than 110%. The side wire or the side strand having been formed has a spiral shape in which a flatness that is an aspect ratio obtained by a major axis being divided by a minor axis is preferably not less than 1.01 and preferably not greater than 1.10. Further, an elongation of the rope at a time when a tensile load that is 1.0% of a breaking load is applied, is preferably not less than 0.04% and preferably not greater than 0.10%.

A kind of stainless steel auger braid welding material and its manufacturing method are disclosed in the invention, involving the field of welding technique. The stainless steel auger braid welding material consists of core wires and several steel tendons, wherein the said welding wire is of a round-bar shape; the said steel tendons are wrapped on the external surface of the said core wire along the axial line and stranded around the circumference of the said core wire, and each steel tendon shall be stranded by winding several fine wires. For the stainless steel auger braid welding material adopted in the invention, its melting rate is fast.

In an elevator rope, an inner layer rope has: an inner layer rope fiber core; a plurality of inner layer strands; and a resin inner layer rope coating body that is coated onto an outer circumference. Inner layer strands are twisted together on an outer circumference of the inner layer rope fiber core. The inner layer strands have: an inner layer strand fiber core that is disposed centrally; and a plurality of steel inner layer strand wires that are twisted together on an outer circumference of the inner layer strand fiber core. In addition, a plurality of steel outer layer strands are twisted together on an outer circumference of the inner layer rope.