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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.
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).
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Sill (for exterior doors) – A horizontal sill plate below the door that supports the door frame. Similar to a window sill but for a door; Threshold (for exterior doors) – A horizontal plate below the door that bridges the crack between the interior floor and the sill.
Metal fire-resistance rated door with a lockset consisting of a locking latch bolt operated by lever handle with an escutcheon that encompasses the locking mechanism.. A lockset (alternatively lock set) is the hardware and components that make up the locking or latching mechanism that can usually be found on a door or other hinged object but can also include sliding doors and dividers. [1]
Minor deletions included the removal of illuminated vanity mirrors for GS-trim vehicles and deleting "Grand Marquis" insignia on the center of the dash trim. In a functional change, drive-by-wire throttle control was introduced, and the cruise control function to the engine computer itself was relocated above the driver-side inner fender.
Evacuation slide used in an emergency drill. An evacuation slide is an inflatable slide used to evacuate an aircraft quickly. An escape slide is required on all commercial (passenger carrying) aircraft where the door sill height is such that, in the event of an evacuation, passengers would be unable to step down from the door uninjured (Federal Aviation Administration requires slides on all ...