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  2. Sliding glass door - Wikipedia

    en.wikipedia.org/wiki/Sliding_glass_door

    A sliding glass door. In architecture and construction, a sliding glass door (also patio door or doorwall [1] [2]) is a type of sliding door made predominantly from glass, that is situated in an external wall to provide egress and light.

  3. Screened porch - Wikipedia

    en.wikipedia.org/wiki/Screened_porch

    A screened porch on the rear of a house in the southwestern United States. A screened porch, also known as a screen room, is a type of porch or similar structure on or near the exterior of a house that has been covered by window screens in order to hinder insects, debris, and other undesirable objects from entering the area inside the screen.

  4. Sliding door operator - Wikipedia

    en.wikipedia.org/wiki/Sliding_door_operator

    A door operator may be triggered in various ways: Approach Sensor (such as a radar sensor) - the door opens when a user approaches it. Pushbutton - the door opens when a user presses a button. Access control - the door opens when an access control system determines the user is authorized to go through. Automatically (in the case of elevators).

  5. Platform screen doors - Wikipedia

    en.wikipedia.org/wiki/Platform_screen_doors

    Platform screen doors on the Elizabeth line at Farringdon, 2019 "Horizontal lift" style doors at Lomonosovskaya station on the Saint Petersburg Metro, the first screen doors in the world The idea of platform edge doors dates from as early as 1908, when Charles S. Shute of Boston was granted a patent for "Safety fence and gate for railway ...

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  7. Elevator - Wikipedia

    en.wikipedia.org/wiki/Elevator

    The door is unlocked and opened by a machine sitting on the roof of the car, which also drives the doors that travel with the car. Door controls are provided to close immediately or reopen the doors, although the button to close them immediately is often disabled during normal operations, especially on more recent elevators.