A rescue system for safely rescuing, in the long term, a person from a wind turbine, comprises a container that can be opened and is closed in a gas-tight manner, and a rescue device configured for rescuing the person from the wind turbine, wherein the rescue device is stored inside the container, and the container is filled with a protective gas, as a result of which the rescue device remains suitable for rescuing the person in the long term.

The invention is directed broadly to a ladder having a fall control system, comprising: a ladder; a tensioner mounted towards a bottom end of the ladder; a mount mounted towards a top end of the ladder; a cable that extends from the tensioner and over the mount in a looped configuration; and an arrestor movably engaged with the cable for coupling a user to the cable, wherein the tensioner has a locked configuration for holding tension on the cable to support a weight of the user and an open configuration for allowing the cable to pass through the tensioner.

The invention is directed broadly to a ladder having a fall control system, comprising: a ladder; a tensioner mounted towards a bottom end of the ladder; a mount mounted towards a top end of the ladder; a cable that extends from the tensioner and over the mount in a looped configuration; and an arrestor movably engaged with the cable for coupling a user to the cable, wherein the tensioner has a locked configuration for holding tension on the cable to support a weight of the user and an open configuration for allowing the cable to pass through the tensioner.

The present invention relates to a portable power-driven system, such as an ascender/descender arrangement, specifically in relation to means for ensuring that a rope used in relation to the portable power-driven system is securely handled when in the operational state.

The present invention relates to a portable power-driven system, such as an ascender/descender arrangement, specifically in relation to means for ensuring that a rope used in relation to the portable power-driven system is securely handled when in the operational state.

A trolley for lifting and/or moving a load on lines and an installation and method using it are disclosed. The trolley includes first and second side plates and sheave assemblies. Each sheave assembly includes a sheave axle with an axle shaft projecting from the first plate, a sheave cartridge on the axle shaft between the plates. Each sheave cartridge includes a pulley wheel rotatable on a bearing around an axis of the axle shaft. The axes of the shafts are parallel to one another. Retention fasteners extend thought the second plate to secure the second and first plates through the axle shafts. An installation includes a trolley and main line extending between two fixed anchorages. In use, the main line passes between the plates of the trolley, the main line contacts a sheave or pulley wheel of the trolley whereby the trolley can travel along the main line.

Described herein is a device comprising members in a kinematic relationship. The kinematic relationship is at least partially governed by at least one magnetic flux interaction that, in effect, may provide a tunable resistance to movement, changing the rate of relative movement between the members. In one embodiment, the device comprises a first member in a kinematic relationship with at least one further member to form a system. The system moves within a limited range of motion and the system interacts when an external energizing force is imposed on the system causing the members to respond due to their kinematic and dynamic characteristics and thereby creating relative motion between the members. The trigger member is coupled to the at least the first member and moves in response to a pre-determined system movement. When the trigger member moves, the trigger member imposes a braking action on the system or a member or members thereof. The speed and/or intensity of the braking action imposed by the trigger member on the system or a member or members thereof is controlled by the trigger member rate of movement. This rate of movement is in turn governed by a magnetic flux interaction between the trigger member and the at least one first member causing formation of a magnetically induced eddy current force between the parts.

Disclosed is a belay device for climbing including an automatic winder including a pulley and a rope. The device includes an electric motor configured so as to apply a torque to the pulley and an encoder coupled to the pulley. The motor is controlled using the encoder according to the rotation of the pulley so as to modulate the torque applied to the pulley according to at least: —an assistance mode in which the torque applied by the servomotor to the pulley drives a pulling of the rope which assists the climber in his climb; and —a fall mode in which the torque applied by the servomotor to the pulley blocks a fall of the climber or slows it to a speed less than 3 m/s. Also disclosed is a climbing game system with virtual or augmented reality using such a belaying device.

Disclosed is a belay device for climbing including an automatic winder including a pulley and a rope. The device includes an electric motor configured so as to apply a torque to the pulley and an encoder coupled to the pulley. The motor is controlled using the encoder according to the rotation of the pulley so as to modulate the torque applied to the pulley according to at least: —an assistance mode in which the torque applied by the servomotor to the pulley drives a pulling of the rope which assists the climber in his climb; and —a fall mode in which the torque applied by the servomotor to the pulley blocks a fall of the climber or slows it to a speed less than 3 m/s. Also disclosed is a climbing game system with virtual or augmented reality using such a belaying device.

A fall-protection apparatus that includes a computing device configured to detect a mechanical command signal, and methods of using such an apparatus.