A structural cable of a construction work. The structural cable including a bundle of load-bearing tendons, a sheath within which the bundle of tendons is located, a housing located within the sheath and fixed relative to the sheath, said housing defining a cavity, the bundle of tendons being at a distance from the housing and the cavity, the bundle of tendons being located outside the housing and the cavity, said cavity extending longitudinally relative to the sheath.

There is described a hoisting system and method of lifting that make use of a particular fibre rope. The fibre rope includes a plurality of magnets that are embedded within the fibre rope and spaced apart along the rope with a known axial distance between the magnets. The system may include a fibre rope hoisting speed sensor, and a magnetic field sensor that can sense the presence of the magnetic field of the embedded magnets. Using the sensors, the hoisting speed of the rope may be determined by: measuring the time between the passing of consecutive magnets by using the magnetic field sensor; calculating the distance between consecutive magnets using the hoisting speed sensor and the measured time between the passing of the consecutive magnets; and comparing the calculated distance between the magnets with an original, predefined distance between the magnets.

A rope edge protection system having a rope protection mat and an edge protection mat in combination for the protection of rope. The rope protection mat is a generally rectangular sheet that can be secured in a sleeve-like configuration around a climbing rope and move along the rope with the user. The edge protection mat is a generally rectangular sheet with loops on each corner, but not limited to the corners, to secure the sheet in place against a building or other structure. The edge protection mat is a multi-layer sheet with a high loft layer to decrease the bend radius of the rope across a ledge. Both the rope protection mat and the edge protection mat include visual safety indicators.

A rope is described including a first terminus, a first end, and a bulk portion. The first end portion consists of a predetermined length of the rope from the first terminus, and the bulk portion is connected to the first end portion. At least one of an external coloring and an external patterning of the first end portion is different from that of the bulk portion. The marked end of the rope allows a climber or other user to easily recognize that he or she is nearing the end of the rope.

A wire strand (10) comprises a plurality of wires (12, 16, 20). The wires comprise a central king wire (12), a first layer (14) of wires (16) arranged around the king wire, and a second layer (18) of wires (20) arranged around the first layer. The king wire is formed of steel having a carbon content of at least 0.3 wt %. Each wire of the first layer is formed of steel having a carbon content which is less than the carbon content of the king wire. Each wire of the second layer is formed of steel having a carbon content which is greater than, or the same as, the carbon content of the wires of the first layer.

Provided is a wire rope with resin wire, including a wire rope body in which a plurality of strands are twisted together, and at least one resin wire spirally wound around the wire rope body along a recess between the strands. Strand grooves into which the strands can fit and a resin wire groove into which the resin wire can fit are formed spirally along the twist of the wire rope with resin wire, in a winding hole of a resin wire winding die used for winding the resin wire around the wire rope body. As a result, the resin wire can be easily and reliably mounted on the wire rope body and a wire rope with resin wire can be thus produced.

A method and device for producing a rope, in particular a wire rope, a fiber rope or a rope having wire and fibers, wherein the rope is provided with a marking during the stranding thereof. The marking is changed during the stranding operation. Expediently, during stranding, the marking is provided successively with details characterizing the stranding progress. The details include production parameters, for example information relating to the length of the rope already formed, about raw materials used, the stranding speed and/or the current stranding time. The details are provided on a wire, a wire strand and/or a marking strand, wherein the details are printed on the wire, the wire strand or the marking strand or are embossed in the wire, the wire strand or the marking strand, and/or chips, preferably radio chips, are arranged in the rope.

Measuring distance along a wire rope, by steps that include moving the wire rope across a sensor head; counting rotations of a rotary encoder driven by the moving wire rope; detecting a first distance marker crossing the sensor head at a first position of the wire rope; detecting a second distance marker crossing the sensor head at a second position of the wire rope; and establishing calibration parameters for producing a calibrated distance measurement corresponding to any output of the rotary encoder, based at least on correlating a known distance between the first and second distance markers to a counted number of pulses of the rotary encoder between the first and second positions of the wire rope.

A flexible abrasion resistant omnidirectionally reflective retractable pet leash has an omnidirectionally reflective pet leash housed within a retractable housing device. The omnidirectionally reflective pet leash reflects an incoming light beam back in the same direction as it was emanated. The reflected light beam provides accurate illumination of the pet leash and the location of the pet during dusk or nighttime hours. This retractable pet leash is created by surrounding a central braided rope of nylon or polyethylene fibers with a cylindrically braided reflective sleeve. The braided reflective sleeve is composed of braided narrow width reflective strips each comprising a plurality of reflective threads worked together to form a weave. Due to the braided weave of the reflective threads and the arrangement of the microscopic reflectors light incident thereon from virtually any angle is reflected back to its source. Advantageously, the fabric remains supple, facilitating extension and retraction of the leash. The braided construction enables the pet leash to reflect light omnidirectionally over a large angle of acceptance, thereby providing an improved measure of safety for both the pet and the pet handler.

Provided is a wire rope with a reflective tape (or a fluorescent tape), in which a reflective tape (12) (or a fluorescent tape) is wound around an outer periphery of a wire rope (11), and further having on its outer periphery a protective layer (13) formed of a translucent member, thereby improving visibility of the wire rope at nighttime, etc., and a cable-type traffic barrier using the wire rope with the reflective tape (or the fluorescent tape).