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2. 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.

3. Door furniture - Wikipedia

   en.wikipedia.org/wiki/Door_furniture

   Numerous devices exist to serve specific purposes related to how a door should (or should not) be used. See: Door chain - A device to secure door opening; Door closer – Mechanical or electromagnetic device to close an open door (in the event of a fire) [3] Door opener - Automatic door opening device activated by motion sensors or pressure pads

4. Electric strike - Wikipedia

   en.wikipedia.org/wiki/Electric_strike

   However, an electric strike's ramped surface can, upon command, pivot out of the way when the lock on the door is in the locked position and the door is opened, allowing a user to pull/push the door to open it without operating the mechanical lock or using a mechanical key. After the door is opened past the keeper, the keeper returns to its ...

5. Door closer - Wikipedia

   en.wikipedia.org/wiki/Door_closer

   Modern manual door closer Eclipse door spring and separate checking mechanism. 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.

6. Carl Prinzler - Wikipedia

   en.wikipedia.org/wiki/Carl_Prinzler

   Carl Jacob Prinzler (June 6, 1870 – May 30, 1949) was an American engineer who invented the "panic bar" device for doors that allowed them to be opened from the inside despite being locked on the outside.

7. Grimes Says She Didn't See One of Her Kids for 5 Months ... - AOL

   www.aol.com/lifestyle/grimes-says-she-didnt-see...

   Grimes is opening up about the past few months of her life. The singer, born Claire Boucher, shared a post on X, formally known as Twitter, on Wednesday, Nov. 20, giving an update on the release ...