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  2. Common Berthing Mechanism - Wikipedia

    en.wikipedia.org/wiki/Common_Berthing_Mechanism

    The bolt/nut structural latch and 4-bar capture latches remained, although the bolt diameter had increased to 0.625 inches (15.9 mm). Both the bolts and the capture latches were motorized with manual backup being available, although the individual mechanisms were still driven by way of sealed couplings that passed through the bulkhead.

  3. Escape trunk - Wikipedia

    en.wikipedia.org/wiki/Escape_trunk

    Submarine escape trunk View inside a submarine escape trunk, looking up from below the lower hatch. An escape trunk is a small compartment on a submarine which provides a means for crew to escape from a downed submarine; it operates on a principle similar to an airlock, in that it allows the transfer of persons or objects between two areas of different pressure.

  4. Latch - Wikipedia

    en.wikipedia.org/wiki/Latch

    A slam latch uses a spring and is activated by the shutting or slamming of a door. Like all latches, a slam latch is a mechanism to hold a door closed. The slam latch derives its name from its ability to slam doors and drawers shut without damaging the latch. A slam latch is rugged and ideal for industrial, agricultural and construction ...

  5. Hold (compartment) - Wikipedia

    en.wikipedia.org/wiki/Hold_(compartment)

    Six large cargo hatch covers on a capesize bulk carrier ship as she approaches the Egyptian-Japanese Friendship Bridge. A cargo hatch or deck hatch or hatchway is type of door used on ships and boats to cover the opening to the cargo hold or other lower part of the ship. To make the cargo hold waterproof, most cargo holds have cargo hatch.

  6. Butterworth cover - Wikipedia

    en.wikipedia.org/wiki/Butterworth_Cover

    Butterworth hatches are not the main access hatches, but are the servicing hatches, and are generally closed with a metal cover plate with a gasket that is fastened to the deck by a number of bolts which stick up from the deck. Holes on the edges of the plate fit over these bolts and the cover is fastened down with nuts or dogs.

  7. Lazarette - Wikipedia

    en.wikipedia.org/wiki/Lazarette

    It is typically found below the weather deck in the stern of the vessel and is accessed through a cargo hatch (if accessed from the main deck) or a doorway (if accessed from below decks). The equipment usually stored in a lazarette would be spare lines, sails, sail repair, line and cable splicing repair equipment, fenders, bosun chair , spare ...

  8. Ejection seat - Wikipedia

    en.wikipedia.org/wiki/Ejection_seat

    Various ejection seats. In aircraft, an ejection seat or ejector seat is a system designed to rescue the pilot or other crew of an aircraft (usually military) in an emergency. . In most designs, the seat is propelled out of the aircraft by an explosive charge or rocket motor, carrying the pilot with

  9. Companionway - Wikipedia

    en.wikipedia.org/wiki/Companionway

    In the architecture of a ship, a companion or companionway is a raised and windowed hatchway in the ship's deck, with a ladder leading below and the hooded entrance-hatch to the main cabins. [1] A companionway may be secured by doors or, commonly in sailboats , hatch boards which fit in grooves in the companionway frame.