Abstract: A fall arrest device comprises a casing with an entry hole for the wire rope, and an exit hole for the wire rope, and a clamping mechanism and an overspeed detector arranged inside the casing. The speed detection mechanism comprises a driven roller arranged to be driven by the wire rope. The driven roller has one or more selected areas to be detected by a sensor, and the device further comprises a motion indicator configured to receive a signal from the sensor when the sensor detects one of the selected areas. The motion indicator is configured to give different indications depending on whether or not the signal is received from the sensor, and such indications are detectable from outside the casing. Methods for operating such a fall arrest device and method for retrofitting fall arrest devices are also disclosed.

Abstract: An elevator system comprising an elevator cabin, and a traction wire rope for driving the elevator cabin and/or a safety wire rope, wherein the elevator system further comprises an upper transverse element provided above the elevator cabin and adapted to be guided along the traction wire rope and/or the safety wire rope, and a support structure which is adapted to support the upper transverse element and substantially impede its movement in a downwards direction and in a horizontal direction, and to allow movement of the upper transverse element in an upwards direction.

Abstract: Elevator systems comprising: an elevator cabin and a drive for moving the elevator cabin along an elevator shaft, and a cable for supplying electrical power and/or control signals to the elevator cabin. The elevator system further comprises a cable protection system (6), attached to the elevator cabin and comprising a cable support (60) for holding a portion of the cable, an actuator (8) operatively connected with the cable support; and a restraint (7) configured to retain the actuator or the cable support up to a threshold force such that when the cable exerts a force on the cable support that is higher than the threshold force, the actuator (8) pushes against a switch (9) to stop the drive.

Abstract: An elevator system comprising an elevator cabin, and a traction wire rope for driving the elevator cabin and/or a safety wire rope, wherein the elevator system further comprises an upper transverse element provided above the elevator cabin and adapted to be guided along the traction wire rope and/or the safety wire rope, and a support structure which is adapted to support the upper transverse element and substantially impede its movement in a downwards direction and in a horizontal direction, and to allow movement of the upper transverse element in an upwards direction.

Abstract: The invention relates to a system for limiting horizontal movements in a lift for humans or equipment in eg. a wind turbine tower or the like. The lift is to be provided with one or more sliding devices which, during the movement of the lift, guide(s) the lift by cooperating with a cable or the like. The system further includes a securing device for direct or indirect anchoring of the cable to the wind turbine tower. The sliding device and the securing device include tubular units that are adapted to each other to the effect that the tubular unit of the securing device is able to slide within the tubular unit of the sliding device.

Abstract: The invention relates to a system for limiting horizontal movements in a lift for humans or equipment in eg a wind turbine tower or the like. The lift is to be provided with one or more sliding devices which, during the movement of the lift, guide(s) the lift by cooperating with a cable or the like. The system further includes a securing device for direct or indirect anchoring of the cable to the wind turbine tower. The sliding device and the securing device include tubular units that are adapted to each other to the effect that the tubular unit of the securing device is able to slide within the tubular unit of the sliding device. The tubular of the securing device is arranged on a flange, and the tubular of the sliding device is provided with a slot, wherein the flange and slot are also adapted to each other to the effect that the flange is able to travel through the slot when the tubular unit of the securing device travels through the tubular unit of the sliding device.