When.com Web Search

Search results

1. Results From The WOW.Com Content Network

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. 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.

4. Safe room - Wikipedia

   en.wikipedia.org/wiki/Safe_room

   In basic safe rooms, a peephole in the door may be used for a similar purpose. Safe rooms are typically stocked with basic emergency and survival items such as a flashlight, blankets, a first-aid kit, water, packaged food, self-defense tools, a gas mask, and a simple portable toilet. High-end safe rooms may have a gun closet, a biodefense air ...

5. Door breaching - Wikipedia

   en.wikipedia.org/wiki/Door_breaching

   A U.S. Marine performs a ballistic breach of a padlocked door using a combat shotgun. Door breaching is a process used by military, police, or emergency services to force open closed or locked doors. A wide range of methods are available depending on the door's opening direction (inward or outward), construction materials, etc., and one or more ...

6. Emergency exit - Wikipedia

   en.wikipedia.org/wiki/Emergency_exit

   Emergency exit in Universitetet metro station in Stockholm. An emergency exit in a building or other structure is a special exit used during emergencies such as fires.The combined use of regular and emergency exits allows for faster evacuation, and emergency exits provide alternative means of evacuation if regular exits are inaccessible.

7. Bank vault - Wikipedia

   en.wikipedia.org/wiki/Bank_vault

   Some doors may be configured so that either dial will unlock the door, trading off increased convenience for lessened security. A time lock is a clock that prevents the vault's door from opening until a specified number of hours have passed. This is still the "theft proof" lock system that Sargent invented in the late nineteenth century.