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  2. Doorstop - Wikipedia

    en.wikipedia.org/wiki/Doorstop

    A handmade wooden doorstop A manufactured black rubber doorstop An integrated doorstop. A doorstop (also door stopper, door stop or door wedge) is an object or device used to hold a door open or closed, or to prevent a door from opening too widely. The same word is used to refer to a thin slat built inside a door frame to prevent a door from ...

  3. Crash bar - Wikipedia

    en.wikipedia.org/wiki/Crash_bar

    A crash bar (also known as a panic exit device, panic bar, or bump bar) [1] [2] is a type of door opening mechanism which allows users to open a door by pushing a bar. While originally conceived as a way to prevent crowd crushing in an emergency, crash bars are now used as the primary door opening mechanism in many commercial buildings.

  4. Petzl Stop - Wikipedia

    en.wikipedia.org/wiki/Petzl_Stop

    Changes to the design including updates to the handle, the bobbins and the carabiner slot. This version also saw Petzl shift the intended use of the Stop to recreational only use. The 2019 version of the Stop is no longer certified for Industrial use and Petzl now sell products such as the Petzl Rig and Petzl I'D S [3] for Industrial use instead.

  5. Door security - Wikipedia

    en.wikipedia.org/wiki/Door_security

    A metal doorframe with a strike plate built in: in other doors this would be a metal strikeplate in a wooden doorframe. The term door security or door security gate may refer to any of a range of measures used to strengthen doors against door breaching, ram-raiding and lock picking, and prevent crimes such as burglary and home invasions.

  6. Drawbar (defense) - Wikipedia

    en.wikipedia.org/wiki/Drawbar_(defense)

    A drawbar is a defensive implement used to secure a door or gate in a medieval or Early Modern building such as a castle, [1] [2] but also churches and townhouses. When drawn across the full length of the door, it prevents the door or gate from being opened. To open the door or gate, the drawbar is pushed into a drawbar slot in the wall.

  7. Stop bar - Wikipedia

    en.wikipedia.org/wiki/Stop_bar

    Stop bar or stopbar may refer to: A system of red lights on an airport taxiway signalling an aircraft not to proceed to the runway. Stop line, a transverse road surface marking; Stopbar tailpiece on the stoptail bridge of an electric guitar or archtop guitar