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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.
A report by the UK-based Building Research Establishment (BRE) stated "there is a commonly held view that equipment designed to meet the European EN54 Fire detection and fire alarm systems standard cannot be used within an installation designed to the US National Fire Alarm Code, NFPA 72." In actuality, "there appears to be no requirement in ...
A device made of rigid, heavy gauge wire and designed to fit through the space between double-swinging equipped with panic hardware. [9] Jet-Axe A Jet-Axe was a shaped charge of two to six ounces of RDX, and was used for forcible entry [10] and ventilation in the 1960s and 1970s. Jet siphon
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.
A panic button alarm is a self-contained electronic device powered by an internal long-life battery, typically Waterproof and designed to be shock resistant and highly durable. In a medical emergency, the advantage over a simple cell phone is that the person in distress may not have the ability to dial the three digits for 911, and may not have ...
The U.S. State Department often uses steel grillwork much like a jail to seal off parts of a home used by U.S. Foreign Service members overseas when they are living in cities with a high crime threat. In some cities, the entire upstairs area is grilled off, [1] as well as every window and door to the home. Other homes have steel doors to one or ...
This is an accepted version of this page This is the latest accepted revision, reviewed on 16 January 2025. American multinational home improvement supplies retailing company The Home Depot, Inc. An aerial view of a Home Depot in Onalaska, Wisconsin Company type Public Traded as NYSE: HD DJIA component S&P 100 component S&P 500 component Industry Retail (home improvement) Founded February 6 ...
A Halligan bar and a flathead axe can be joined (and partially interlocked, head-to-toe) to form what is known as a married set, set of irons or simply the irons. This combination of tools is most common within the fire service. However, the Halligan may also be combined with a Halligan hook or sledgehammer as an alternative.
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