To accommodate bulk cargo vessels are often used gripper, whose execution requires special handling of the winch. Common designs of gripper vessels, the size of the vessels varies cbm 1 to 2 Example of a grab winch arrangement a,, is the same on a steam crane (Brown) 1) put angel. The gripper is related to the average chain on the hoisting rope and is by the dead weight of the gripping jaws and the load weight W is kept closed.