Rope safety device

A rope safety device provides a secondary independent braking mechanism comprising an eccentric pulley 2 and an associated bollard 11, that acts cumulatively with a primary braking mechanism comprising an eccentric pulley 1 and a bollard 10, the pulley 1 having a control handle 12 secured thereto for releasing the primary braking mechanism. The secondary braking mechanism can be added or removed while the device is under load. The action of the cumulative braking mechanisms means the restraining force does not diminish too quickly when the primary braking mechanism is released. Preferably, the control handle has a further protuberance 13 to coact with the bollard 10 to jam the rope. Preferably, the bollard 10 is rectangular. Preferably, the pulleys and bollards are mounted on a base 5 and a pivotally mounted cover (6, Fig 1) with slots can be moved to cover or expose the pulleys allowing roping or removal of the rope thereof. Instead of pulleys, cams can be used.

A device which allows a pulley system to be attached at any point along a rope

A device comprises a pulley wheel mounted on a supporting plate 6, the axis of rotation of the pulley wheel being in a plane perpendicular to the plane of the plate 6, a cover 5 mounted on the pulley on the opposite side to the plate 6 and a releasable rope engaging mechanism 3. A rope channel 4 is located along one side of the plate 6. The releasable mechanism 3 may be in the form of a cam pivotally mounted on the plate 6, the free end of the cam being received within the rope channel 4. A first rope may be reeved on the pulley and a second rope bearing a load may be received within the rope channel 4. The device allows for a pulley system to the attached at any point along the second rope and the device is for use in recovering injured persons working at height or during leisure activities such as climbing or potholing.

Rope safety device

Pulley device