CAT-GUT. A term applied to the sea-laces or Fucus filum. (See [Sea-catgut].)
CAT-HARPINGS, or Catharpin Legs. Ropes under the tops at the lower end of the futtock-shrouds, serving to brace in the shrouds tighter, and affording room to brace the yards more obliquely when the ship is close-hauled. They keep the shrouds taut for the better ease and safety of the mast.
CAT-HEAD. The cat-head passes through the bow-bulwark obliquely forward on a radial line from the fore-mast, rests on the timbers even with the water-way, passes through the deck, and is secured to the side-timbers. It is selected from curved timber. Its upper head is on a level with the upper rail; it is furnished with three great sheaves, and externally strengthened by a cat-head knee. It not only is used to lift the anchor from the surface of the water, but as it "looks forward," the cat-block is frequently lashed to the cable to aid by its powerful purchase when the capstan fails to make an impression. The cat-fall rove through the sheaves, and the cat-block furnish the cat-purchase. The cat-head thus serves to suspend the anchor clear of the bow, when it is necessary to let it go: the knee by which it is supported is generally ornamented with carving. Termed also cat-head bracket.
CAT-HOLES. Places or spaces made in the quarter, for carrying out fasts or springs for steadying or heaving astern.
CAT-HOOK. A strong hook which is a continuation of the iron strop of the cat-block, used to hook the ring of the anchor when it is to be drawn up or catted.
CAT-LAP. A common phrase for tea or weak drink.
CAT O' NINE TAILS. An instrument of punishment used on board ships in the navy; it is commonly of nine pieces of line or cord, about half a yard long, fixed upon a piece of thick rope for a handle, and having three knots on each, at small intervals, nearest one end; with this the seamen who transgress are flogged upon the bare back.
CATRAIA. The catraia of Lisbon and Oporto, or pilot surf-boats, are about 56 feet long, by 15 feet beam, impelled by sixteen oars.
CAT-RIG. A rig which in smooth water surpasses every other, but, being utterly unsuited for sea or heavy weather, is only applicable to pleasure-boats who can choose their weather. It allows one sail only—an enormous fore-and-aft main-sail, spread by a gaff at the head and a boom at the foot, hoisted on a stout mast, which is stepped close to the stem.
CAT-ROPE. A line for hauling the cat-hook about: also cat-back-rope, which hauls the block to the ring of the anchor in order to hook it.