English to Spanish Tech/Engineering Ships, Sailing, Maritime

Anyone know the exact technical term in spanish?

Nipper: Short rope used to bind a cable to the "messenger" (a moving line propelled by the capstan) so that the cable is dragged along too (Used because the cable is too large to be wrapped round the capstan itself). During the raising of an anchor the nippers were attached and detached from the (endless) messenger by the ship's boys. Hence the term for small boys: 'nippers'.