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2. Dutchman (repair) - Wikipedia

   en.wikipedia.org/wiki/Dutchman_(repair)

   A rail repair dutchman is typically a 4–6-inch (100–150 mm) long piece of rail that is cut in advance for the purpose and carried by a section crew. If the gang finds a rail with a chipped or broken end, they remove the connector plates ( fishplates ), cut out the damaged section, replace it with the dutchman, and bolt the connectors back ...

3. Pontoon bridge - Wikipedia

   en.wikipedia.org/wiki/Pontoon_bridge

   A pontoon bridge (or ponton bridge), also known as a floating bridge, uses floats or shallow-draft boats to support a continuous deck for pedestrian and vehicle travel. The buoyancy of the supports limits the maximum load that they can carry. Most pontoon bridges are temporary and used in wartime and civil emergencies.

4. 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]

5. Molly (fastener) - Wikipedia

   en.wikipedia.org/wiki/Molly_(fastener)

   Figure 1 of the original patent for the molly bolt, U.S. Patent No. 2,018,251. The molly bolt was patented in 1934 by George Frederick Croessant. [3] Although his patent acknowledges that expandable fasteners of this general kind were already known, Croessant's patent is intended to provide "an improved and adequate anchoring grip that may be retightened if necessary and that will permit ...

6. Dolphin (structure) - Wikipedia

   en.wikipedia.org/wiki/Dolphin_(structure)

   Wood pilings grouped into a pair of dolphins serving as a protected entryway to a boat basin. A dolphin is a group of pilings arrayed together to serve variously as a protective hardpoint along a dock, in a waterway, or along a shore; as a means or point of stabilization of a dock, bridge, or similar structure; as a mooring point; and as a base for navigational aids.

7. Anchors Aweigh - Wikipedia

   en.wikipedia.org/wiki/Anchors_Aweigh

   It is an order that a ship's anchors be raised, To "weigh anchor" is to bring all anchor(s) aboard the vessel in preparation for departure. In response to the order, the phrase "anchors aweigh" reports back that all anchors are clear of the sea bottom; therefore the ship is officially under way .