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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.
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.
In 1910, Vonnegut Hardware Company began to sell the Von Duprin Safe Exit Device; not long after many public buildings in Indianapolis implemented the panic bar, setting standards that the rest of the nation too would soon follow. [5] Dupont announced his move to Florida in 1915, with an office in St. Petersburg's Central National Bank Building ...
Today, exit doors open outward, so that people trying to escape will tend to hold the doors open. There were no exit signs on fire-escape exits, and doors were concealed behind drapery. On the ground floor, the drapery was intact after the fire, but in the balconies, drapery was destroyed by the fireball. Theater staff had never experienced a ...
Electric strikes for rim panic exit devices are sometimes, though not always, 'no cut' electric strikes - no cutting, in reference to a rim panic strike, means the strike is bolted to the surface of jamb without cutting into the frame or modifying it in any way (except for the drilling and tapping of mounting screw and/or anchoring pins).
Don't panic, we've got you. Put the elf on the dashboard of the car or affix them around the rearview mirror for a fun carpool drop-off (or pick-up) this season. 76.
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