An illustrative example embodiment of elevator sheave liner includes a rigid central portion made of a first material and a resilient outer portion made of a second material. The central portion defines a traction surface that is configured to receive an elevator tension member. The outer portion defines an engagement surface that is configured to secure the sheave liner to an elevator sheave.

An apparatus for moving ropeway vehicles in a ropeway system includes at least one conveying wheel being adjustable in height relative to the vehicles by a lifting device to be brought into abutment against the vehicles for displacing the vehicles along a track using the conveying wheel. An electric lifting device has an electric drive motor with a threaded sleeve or the like to be retained in its height position and rotated by the drive motor and a lifting spindle to be adjusted in height by the threaded sleeve for adjusting the conveying wheel in height. Upper and lower end surfaces of the threaded sleeve and the lifting spindle have stops located approximately in planes normal to the direction of rotation of the threaded sleeve or the like which, in upper and lower end positions of the lifting spindle, abut one another preventing further rotation of the threaded sleeve.

It is described a node handling device for use during deployment or retrieval of a plurality of seismic nodes (10) attacked to a cable (8), the node handling device comprising: a wheel device (1) adapted for damping of the cable (8) with attached seismic nodes (10) during deployment or retrieval. A wheel device and a method for deployment or retrieval are also disclosed.

It is described a node handling device for use during deployment or retrieval of a plurality of seismic nodes (10) attacked to a cable (8), the node handling device comprising: a wheel device (1) adapted for damping of the cable (8) with attached seismic nodes (10) during deployment or retrieval. A wheel device and a method for deployment or retrieval are also disclosed.

A hitch-minding pulley comprising at least one pulley sheave rotatably fixed between the arms of a split yoke, the arms being swivelable about the rotational axis of the or each pulley sheave to allow access for a pulley engaging climbing rope, the body of the yoke being split into two parts, each body part having a respective yoke arm extending therefrom, the body parts having multiple corresponding pairs of apertures for collectively receiving, in use, a plurality of carabiners, wherein at least one of the pairs of apertures is a curved slot, the outer curvature of which being generally oriented inward towards the or each pulley sheave.

An object of the present invention is to further improve upon the strength and durability of a wire rope. A wire rope has a core rope made of steel; a covering layer, which is made of a composite resin, covering the outer peripheral surface of the core rope; and multiple side strands, which are made of steel, wound on the outer peripheral surface of the core rope covered with the covering layer. The composite resin constituting the covering layer is obtained by blending cellulose nanofibers with polypropylene serving as a matrix.

A pulley comprising a wheel or sheave (1) having a central recess (2) and a channel (3); and at least one fastening cable (4) designed for transmitting the force from the sheave (1) to a fastening point, the cable passing transversely to the sheave (1) through the central recess (2); and which incorporates at least one low-friction bushing (6) that is housed between the fastening cable (4) and the sheave (1).

A pulley comprising a wheel or sheave (1) having a central recess (2) and a channel (3); and at least one fastening cable (4) designed for transmitting the force from the sheave (1) to a fastening point, the cable passing transversely to the sheave (1) through the central recess (2); and which incorporates at least one low-friction bushing (6) that is housed between the fastening cable (4) and the sheave (1).

A sheave may include a body portion with a circular circumference and defining a center plane, a bore extending through the body portion and configured for receiving a shaft and allowing the body portion to rotate in the center plane, and a rope groove arranged on the circular circumference including a radiused bottom with a first end and a second end and a pair of opposing sidewalls each extending directly and tangentially from one of the first and second end and having a curved profile.

A sheave may include a body portion with a circular circumference and defining a center plane, a bore extending through the body portion and configured for receiving a shaft and allowing the body portion to rotate in the center plane, and a rope groove arranged on the circular circumference including a radiused bottom with a first end and a second end and a pair of opposing sidewalls each extending directly and tangentially from one of the first and second end and having a curved profile.