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  2. Door - Wikipedia

    en.wikipedia.org/wiki/Door

    It is called a French window when used in a pair as double-leaved doors with large glass panels in each door leaf, and in which the doors may swing out (typically) as well as in. A double-acting door, patented in 1880 by the Dutch-American engineer Lorenz Bommer, swings both ways. They are often used in areas where many people are likely to ...

  3. List of cars with non-standard door designs - Wikipedia

    en.wikipedia.org/wiki/List_of_cars_with_non...

    Gullwing doors with a second hinge between door and moving roof panel are called falcon wing doors. Scissors – rotate vertically at a fixed hinge at the front of the door, and open by rotating on a horizontal axis, perpendicular to the vehicle's length. Scissor doors that also move outward while rotating are called dihedral synchro-helix ...

  4. Hinge - Wikipedia

    en.wikipedia.org/wiki/Hinge

    This hinge pivots in openings in the floor and the top of the door frame. Also referred to as double-acting floor hinges, they are found in ancient dry stone buildings and, rarely, in old wooden buildings. They are a low-cost alternative for use with lightweight doors. [7] Doors with these hinges may be called haar-hung doors. Self-closing hinge

  5. Scissor doors - Wikipedia

    en.wikipedia.org/wiki/Scissor_doors

    The Lamborghini Aventador The Lamborghini Countach. Scissor doors (also called flap doors, wing doors, beetle-wing doors, turtle doors, switchblade doors, swing-up doors, upswing doors, Lamborghini doors, [1] and Lambo doors) are automobile doors that rotate vertically at a fixed hinge at the front of the door, [2] rather than outward as with a conventional door.

  6. Door closer - Wikipedia

    en.wikipedia.org/wiki/Door_closer

    A door closer is a mechanical device that regulates the speed and action of a door’s swing. [1] Manual closers store the force used to open the door in some type of spring and reuse it to close the door. Automatic types use electricity to regulate door swing behavior. Door closers can be linked to a building's fire and security alarm systems. [2]

  7. Dihedral synchro-helix actuation doors - Wikipedia

    en.wikipedia.org/wiki/Dihedral_Synchro-Helix...

    The dihedral synchro-helix actuation door system is a type of door with a hinge mechanism which allows the doors to rotate 90° by sweeping outwards and upwards at the hinge. [1] It was designed and developed by Christian von Koenigsegg on behalf of high-performance sports cars manufacturer, Koenigsegg Automotive AB . [ 2 ]

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