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Variants of casement windows are still the norm in many European countries. They are sometimes opened with a crank, lever, or cam handle, which is placed around hand height or at the bottom and serves as a window lock. [2] A crank, stay, or friction hinge is necessary when the window opens outward, to hold the window in position despite wind.
Roll shutters on windows. Security roller shutters in a dead mall. A roller shutter, security shutter, coiling door, roller door or sectional overhead door is a specialized type of door or window shutter consisting of multiple horizontal slats, bars, or web systems interconnected through hinges. The mechanism involves lifting the door to open ...
Crash bar doors in a school, with upper vertical rod latches. 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.
The parts included in the typical US mortise lock installation are the lock body (the part installed inside the mortise cut-out in the door); the lock trim (which may be selected from any number of designs of doorknobs, levers, handle sets and pulls); a strike plate (or box keep), which lines and reinforces the cavity in the door jamb or frame ...
The term window security may refer to any of a range of measures used to avoid unauthorized access through windows, and prevent crimes such as burglary and home invasions. Window security is used in commercial and government buildings, as well as in residential settings.
President Biden took a departing jab at Trump, saying that what the president-elect did was a "genuine threat to democracy.". Ahead of the anniversary of the Jan. 6, 2021, riot at the U.S. Capitol ...
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