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Circa 1908, Prinzler, Dupont and the Vonnegut Hardware Company entered into an arrangement providing for the manufacture, marketing and distribution of the patent protected hardware. Under the trade name Von Duprin (a blend of the three principals names, VONnegut, DUpont, PRINzler) the Von Duprin Safe Exit Device, as it was called, was ...
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.
Electrified exit hardware, sometimes called "panic hardware" or "crash bars", are used in fire exit applications. A person wishing to exit pushes against the bar to open the door, making it the easiest of mechanically-free exit methods. Electrified exit hardware can be either fail unlocked or fail locked.
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).
For articles about locks used to raise and lower ships and boats, see Category:Locks (water navigation) The main article for this category is Lock (security device) . Wikimedia Commons has media related to Locks (security devices) .
It’s not a panic sign, either,” Challenger said. U.S.-based employers announced 57,727 cuts in November, a 3.8% increase from October and up 26.8% from the reductions announced in November ...
Gust lock on a rudder. A gust lock on an aircraft is a mechanism that locks control surfaces and keeps open aircraft doors in place while the aircraft is parked on the ground and non-operational. Gust locks prevent wind from causing unexpected movements of the control surfaces and their linked controls inside the aircraft, as well as aircraft ...
Sunday Today’s Willie Geist and Saturday Today coanchor Laura Jarrett filled in for Hoda Kotb, Savannah Guthrie and Craig Melvin on the Friday, October 18, episode of the NBC morning show.
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