Abstract: There is provided a fast and a reliable way to inspect a condition of a chain by an arrangement comprising a camera and guide for positioning a chain in front of the camera such that holes of consecutive chain links are visible to the camera. In a method for inspecting a chain connected movable to a hoisting device, the chain is positioned in front of the camera by the guide and the chain is driven past the camera by the hoisting device.

Abstract: There is provided a fast and a reliable way to inspect a condition of a chain by an arrangement comprising a camera and guide for positioning a chain in front of the camera such that holes of consecutive chain links are visible to the camera. In a method for inspecting a chain connected movable to a hoisting device, the chain is positioned in front of the camera by the guide and the chain is driven past the camera by the hoisting device.

Abstract: A lifting hook includes a hook body with a hook stem; a tip; a safety latch with a fastening end and a free latch end, the fastening end being pivotally fastened close to the stem for movement between an open and a closed position, the safety latch being in the open position substantially against the inside of the hook body in a position that leaves the hook jaw open while in a closed position the latch end extends across the hook jaw to the tip of the hook, closing the jaw from the inside; and an actuator of the safety latch arranged between the safety latch and the hook stem, the actuator of the safety latch including a delay mechanism configured to return the safety latch from the open position to the closed position in a delayed manner. A safety latch of a lifting hook is also provided.

Abstract: The monitoring of a brake is disclosed. The brake includes first and second braking surfaces and a magnetizing device arranged to move the braking surfaces to an open state, in which the braking surfaces are separated from each other, and to a closed state, in which the braking surfaces are connected to each other. During the monitoring of the brake, the time is measured that elapses from the change in the magnetic field caused by the magnetizing device to the shift of the braking surfaces from one state to another.

Abstract: A lifting hook includes a hook body with a hook stem; a tip; a safety latch with a fastening end and a free latch end, the fastening end being pivotally fastened close to the stem for movement between an open and a closed position, the safety latch being in the open position substantially against the inside of the hook body in a position that leaves the hook jaw open while in a closed position the latch end extends across the hook jaw to the tip of the hook, closing the jaw from the inside; and an actuator of the safety latch arranged between the safety latch and the hook stem, the actuator of the safety latch including delay mechanism configured to return the safety latch from the open position to the closed position in a delayed manner. A safety latch of a lifting hook is also provided.

Abstract: The monitoring of a brake is disclosed. The brake includes first and second braking surfaces and a magnetizing device arranged to move the braking surfaces to an open state, in which the braking surfaces are separated from each other, and to a closed state, in which the braking surfaces are connected to each other. During the monitoring of the brake, the time is measured that elapses from the change in the magnetic field caused by the magnetizing device to the shift of the braking surfaces from one state to another.