A fall arrest device for blocking a rope when a relative speed between the rope and the device reaches a threshold value comprises a blocking mechanism for blocking the rope, and a trigger mechanism configured for triggering an activation lever of the blocking mechanism for activating the blocking mechanism for blocking the rope when the speed reaches the threshold value, wherein the trigger mechanism comprises a drive axis rotated by the rope upon relative movement between the rope and the fall arrest device, the drive axis carrying a centrifugal weight holder, wherein at least one centrifugal weight is held acting against a restoring force of a spring, wherein the at least one centrifugal weight is movable between an inactive position and a trigger position for triggering the activation lever when the speed reaches the threshold value. The centrifugal weight holder is arranged rotatably relative to a release gear that comprises a toothing engagable by an actuator member of the at least one centrifugal weight, when the at least one centrifugal weight is in the trigger position.

A brake device (10, 10′) for the realization of laminar packages for electrical use defined by the overlapping of magnetic laminations formed by shearing, coupled to a shearing apparatus (13) below a shearing mould (14), with said brake device comprising a brake block (15, 15′), provided with an opening (16, 16′) with a shape corresponding to that of a lamination (12′) and with a size smaller than that of the lamination to define with said lamination an interference (Δ) functional to the packing of the laminations (12) and comprising mechanical stress compensation means adapted to keep said interference (Δ) constant.

Locking systems and method of manufacturing the same are provided. A locking system for fall protection includes a braking lever. The braking includes a shock absorber. The shock absorber includes a plurality of coils. The shock absorber also includes a plurality of breakaway interfaces coupling the plurality of coils together. Each of the plurality of breakaway interfaces are configured to decouple two of the plurality of coils at a different force. At least one of the breakaway interfaces defines at least one deformable finger defined on one of the plurality of coils of the shock absorber interfacing with another coil of the shock absorber.

A locking system for fall protection and a method of manufacturing the same are provided. An example locking system includes a housing. The housing defines a guide path through which the housing is slideably attached to a guide member. The locking system also includes a braking lever having a braking end that is configured to engage the guide member. The braking lever includes a shock absorber configured to deform during a fall instance. The locking system further includes a secondary braking feature configured independent from the braking lever. The secondary braking feature is an inertial structure configured to rotate into engagement with the guide member during the fall instance. A corresponding method of manufacturing is also provided.

The invention relates to a descent control device comprising a housing, wherein the housing comprises a rope entrance (2) and a rope exit (3) located at opposite sides of the housing (1), a channel (5) having at least one curvature of at least 180 degrees, for accommodating the rope (4) internally in the housing, and an element (5) arranged in the centre of the curvature, limiting the inner radius of the channel. The element is eccentric rotatable between a free position and a stop position, and provided with an arm (6) protruding out through the housing for controlling the rotating between free and stop position. The channel in the curvature is more narrow along substantially its whole length when the element is in stop position than in free position.

A braking system includes a frame, an actuator coupled to the frame, a rotating joint coupled to the actuator and the frame, an arm coupled to the rotating joint, a brake pad having a connector, the connector pivotably coupled to the arm, and a torsion spring positioned at the connector to bias the brake pad relative to the arm.

A bidirectional anti-slipping apparatus includes a vehicle following stabilizing mechanism, a track, and two front and rear sets of locking mechanisms with opposite directions. The vehicle following stabilizing mechanism includes a protective shell, a middle vehicle capable of sliding and a hydraulic cylinder configured to control the middle vehicle to slide are arranged in the protective shell, a front vehicle and a rear vehicle are respectively fixed at two front and rear ends of the protective shell. Each locking mechanism includes two left and right groups of ratchet devices, each of the ratchet devices includes a fixing rod, a plurality of inner ratchet wheels capable of rotating unidirectionally are respectively fixed at two ends of the fixing rod on one side of the fixing rod proximate to the track, the inner ratchet wheels on the two front and rear sets of locking mechanisms rotate in opposite directions.

Methods and systems are provided for a device. In one example, the device is configured to automatically grab and slip a line. The device is further configured to decrease degradation to the line by limiting a rotation of the device via contact with the line.

The present invention discloses an overhead rail and trolley apparatus and method. The apparatus provides an overhead rail having one or more tracks. A wheeled trolley having a wheel or wheels travels upon the tracks. A stop unit on the rail is positioned to selectively halt the trolley. There is a cutout section on the rail and an insert that is attached to the rail at the cutout. The trolley wheels engage the upper surface of the insert when the trolley is halted by the stop unit. A plating on the insert increases the hardness of the insert upper surface. The insert helps prevent and/or at least lessens wear of apparatus when the trolley is halted by the stop unit.

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.