Abstract: A mooring post unit is provided with a cable holding device on top of the mooring post. The cable holding device has a first pulley wheel, a second pulley wheel and a cable clamp, arranged to guide a mooring cable from a ship over the first pulley wheel to the clamp, back and forth via the second pulley wheel. A hydraulic force limiter is coupled between the second pulley wheel and the mooring post. The hydraulic force is expandable and compressible in the direction of a force exerted by the axis of the pulley wheel. The hydraulic force limiter temporarily gives way when a peak in the force exceeds a threshold. The clamp comprises a pair of drums, around which the mooring cable runs back and forth. By synchronously rotating the drums, the mooring cable may be hauled in or paid out under stress.

Abstract: A hydraulic mooring cable holding device provides a hydraulic cylinder-piston combination (20) for controlling the force on a mooring cable between one end of a ship and a mooring point. An overpressure protection part (26) with hydraulic liquid passing from the hydraulic cylinder (20) to a reservoir (260) when the pressure in the cylinder exceeds a threshold value, and returns the hydraulic liquid when the pressure has dropped. An auxiliary reservoir (24) with a steeper pressure response than the main reservoir (260) is connected in parallel with the main reservoir. The auxiliary reservoir may be connected to and/or disconnected from the cylinder under control of a sensor or a further mooring device at the other end of the ship, to reduce movement of the ship e.g. in swell. Furthermore, pressure from the auxiliary reservoir may be used to drive an electric generator.

Abstract: A hydraulic mooring cable holding device provides a hydraulic cylinder-piston combination (20) for controlling the force on a mooring cable between one end of a ship and a mooring point. An overpressure protection part (26) with hydraulic liquid passing from the hydraulic cylinder (20) to a reservoir (260) when the pressure in the cylinder exceeds a threshold value, and returns the hydraulic liquid when the pressure has dropped. An auxiliary reservoir (24) with a steeper pressure response than the main reservoir (260) is connected in parallel with the main reservoir. The auxiliary reservoir may be connected to and/or disconnected from the cylinder under control of a sensor or a further mooring device at the other end of the ship, to reduce movement of the ship e.g. in swell. Furthermore, pressure from the auxiliary reservoir may be used to drive an electric generator.