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2. Stockless anchor - Wikipedia

   en.wikipedia.org/wiki/Stockless_anchor

   The stockless anchor is an improved version of the Admiralty anchor it is derived from. It has two flukes that pivot on the same plane perpendicular to the shank. [2] The weight of the shank and accompanying chain, or the shank angled under tension, keep the anchor laying flat on the sea floor.

3. Corvus (boarding device) - Wikipedia

   en.wikipedia.org/wiki/Corvus_(boarding_device)

   In Chapters 1.22-4-11 of his History, Polybius describes this device as a bridge 1.2 m (4 ft) wide and 10.9 m (36 ft) long, with a small parapet on both sides. The engine was probably used in the prow of the ship, where a pole and a system of pulleys allowed the bridge to be raised and lowered.

4. Derrick - Wikipedia

   en.wikipedia.org/wiki/Derrick

   On the top side, the two legs are connected together by a lashing but with a small spacer block placed between the legs. A sling, which may be made from ropes, is placed around the area that two legs meet to be used to put a tackle pulley system for lifting the load. There are two guy wires, front and rear, to support the shear legs.

5. Anchor - Wikipedia

   en.wikipedia.org/wiki/Anchor

   Holding ground is the area of sea floor that holds an anchor, and thus the attached ship or boat. [4] Different types of anchor are designed to hold in different types of holding ground. [5] Some bottom materials hold better than others; for instance, hard sand holds well, shell holds poorly. [6] Holding ground may be fouled with obstacles. [6]

6. Capstan (nautical) - Wikipedia

   en.wikipedia.org/wiki/Capstan_(nautical)

   As ships and their anchors grew in size, the anchor cable or chain would be too big to go around the capstan. Also, a wet cable or chain would be difficult to manage. A messenger would then be used as an intermediate device. This was a continuous loop of cable or chain which would go around the capstan.

7. Killick hitch - Wikipedia

   en.wikipedia.org/wiki/Killick_hitch

   The killick hitch / ˈ k ɪ l ɪ k / is a type of hitch knot used to attach a rope to oddly shaped objects. [1]: 32 It is a combination of a timber hitch tied in conjunction with a half hitch [1]: 23 which is added to lend support and stability when pulling or hoisting the object.

8. Fairlead - Wikipedia

   en.wikipedia.org/wiki/Fairlead

   A fairlead can be a hook, ring, pulley, chock, or hawse (hole) sometimes surrounded by rollers. If the line is meant to be moved while in the fairlead, the angle in the line created by the fairlead must be shallow to minimize friction. For larger angles a block or pulley is used as a fairlead to reduce friction. Where the line is removed from a ...

9. Sea anchor - Wikipedia

   en.wikipedia.org/wiki/Sea_anchor

   A conical sea anchor with tripline (from an illustration in The Sailors Handbook by Halsey C. Herreshoff). An early wooden drogue. A sea anchor (also known as a parachute anchor, drift anchor, drift sock, para-anchor or boat brake) is a device that is streamed from a boat in heavy weather. Its purpose is to stabilize the vessel and to limit ...