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Fire door held open by an electromagnet. Most fire doors are designed to be kept closed at all times. Some doors are designed to stay open under normal circumstances, and close automatically in the event of a fire. Whichever method is used, the door's movement should never be impaired by a doorstop or other obstacle.
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.
How to make the wreath: Start with a flat-wire 18-inch frame. Hot-glue corn husks (roughly 18) and ears of flint corn (roughly 9) in an alternating pattern. Fray the ends of the corn husks to add ...
Eastlake movement. The Eastlake movement was a nineteenth-century architectural and household design reform movement started by British architect and writer Charles Eastlake (1836–1906). The movement is generally considered part of the late Victorian period in terms of broad antique furniture designations. In architecture the Eastlake style ...
A fire escape is a special kind of emergency exit, usually mounted to the outside of a building —occasionally inside, but separate from the main areas of the building. It provides a method of escape in the event of a fire or other emergency that makes the stairwells inside a building inaccessible. Fire escapes are most often found on multiple ...
Mortise lock. The two main parts of a mortise lock. Left: the lock body, installed in the thickness of a door. This example has two bolts: a sprung latch at the top, and a locking bolt at the bottom. Right: the box keep, installed in the doorjamb. A mortise lock (also spelled mortice lock in British English) is a lock that requires a pocket ...
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