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  2. Elevator - Wikipedia

    en.wikipedia.org/wiki/Elevator

    Holeless hydraulic elevators were developed in the 1970s, and use a pair of above-ground cylinders, which makes it practical for environmentally or cost-sensitive buildings with two, three, or four floors. Roped hydraulic elevators use both above-ground cylinders and a rope system, allowing the elevator to travel further than the piston has to ...

  3. Hoist (device) - Wikipedia

    en.wikipedia.org/wiki/Hoist_(device)

    Hoist atop an elevator. A hoist is a device used for lifting or lowering a load by means of a drum or lift-wheel around which rope or chain wraps. It may be manually operated, electrically or pneumatically driven and may use chain, fiber or wire rope as its lifting medium.

  4. Shop drawing - Wikipedia

    en.wikipedia.org/wiki/Shop_drawing

    Installation information will need to be reviewed with electrical and plumbing trades to coordinate third-party service connections. A shop drawing is a drawing or set of drawings produced by the contractor , supplier , manufacturer, subcontractor , consultants, or fabricator .

  5. Elevator operator - Wikipedia

    en.wikipedia.org/wiki/Elevator_operator

    The Smith Tower in Seattle, Washington uses traditional elevator operators, as seen in this 2008 photo.. An elevator operator (North American English), liftman (in Commonwealth English, usually lift attendant), or lift girl (in British English), is a person specifically employed to operate a manually operated elevator.

  6. Escalator - Wikipedia

    en.wikipedia.org/wiki/Escalator

    In the twenty-first century Schindler became the largest maker of escalators and second largest maker of elevators in the world, though their first escalator installation did not occur until 1936. [11] In 1979, the company entered the United States market by purchasing the Haughton Elevator company. [12]

  7. Fire alarm system - Wikipedia

    en.wikipedia.org/wiki/Fire_alarm_system

    A fire alarm control panel Fire alarm speaker and pull station. Fire alarm systems are composed of several distinct parts: Fire alarm control panel (FACP), or fire alarm control unit (FACU): This component, the hub of the system, monitors inputs and system integrity, controls outputs, and transmits information.

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