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  2. San Francisco Fire Department Auxiliary Water Supply System

    en.wikipedia.org/wiki/San_Francisco_Fire...

    The system is made up of a collection of water reservoirs, pump stations, cisterns, suction connections and fireboats. While the system can use both fresh or salt water, it is preferential to not use salt water, as it commonly causes galvanic corrosion in fire equipment. [2] Blue-topped AWSS fire hydrant in the Mission district of San Francisco.

  3. Process plant shutdown systems - Wikipedia

    en.wikipedia.org/wiki/Process_plant_shutdown_systems

    The safety shutdown system shall shut down the facilities to a safe state in case of an emergency situation, thus protecting personnel, the environment and the asset. The safety shutdown system shall manage all inputs and outputs relative to emergency shutdown (ESD) functions (environment and personnel protection).

  4. Floodgate - Wikipedia

    en.wikipedia.org/wiki/Floodgate

    Bulkhead gates are vertical walls with movable, or re-movable, sections. Movable sections can be lifted to allow water to pass underneath (as in a sluice gate ) and over the top of the structure. Historically, these gates used stacked timbers known as stoplogs or wooden panels known as flashboards to set the dam's crest height.

  5. Screwfix - Wikipedia

    en.wikipedia.org/wiki/Screwfix

    Screwfix Direct Limited, trading as Screwfix, is a retailer of trade tools, accessories and hardware products based in the United Kingdom. [6] Founded in 1979 as the Woodscrew Supply Company, the company was acquired in July 1999 by Kingfisher plc , which also owns B&Q , and is listed on the London Stock Exchange .

  6. National Airlines Flight 102 - Wikipedia

    en.wikipedia.org/wiki/National_Airlines_Flight_102

    The subsequent investigation concluded that improperly secured cargo broke free during the take-off and rolled to the back of the cargo hold, crashing through the rear pressure bulkhead and disabling the rear flight control systems. This rendered the aircraft stuck in an uncontrollable pitch-up attitude and induced a stall, and made recovery by ...

  7. Bulkhead (partition) - Wikipedia

    en.wikipedia.org/wiki/Bulkhead_(partition)

    Bulkhead also refers to a moveable structure often found in an Olympic-size swimming pool, as a means to set the pool into a "double-ended short course" configuration, or long-course, depending on the type of event being run. Pool bulkheads are usually air-fillable, but power driven solutions do exist.

  8. Common Berthing Mechanism - Wikipedia

    en.wikipedia.org/wiki/Common_Berthing_Mechanism

    A vestibule is composed of an ACBM ring (1) mounted to a flanged bulkhead (3) and a PCBM ring (2) mounted to a flanged bulkhead or barrel section (4). The rings, both machined from 2219 Aluminum forgings, mate at a "molded seal" (5); each ring is sealed at its inboard end by a pair of concentric o-rings (6).

  9. List of Seconds from Disaster episodes - Wikipedia

    en.wikipedia.org/wiki/List_of_Seconds_from...

    On August 12, 1985, the rear pressure bulkhead of a Boeing 747 bursts, destroying the vertical stabilizer and severing all four of the aircraft's vital hydraulic systems. The crew keep the aircraft flying for 32 minutes until it clips Mount Takamagahara in Gunma Prefecture and crashes, killing all but four people out of the 524 passengers and ...