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Police locks are particularly associated with New York City in the 20th century, [2] and are sometimes seen in movies set in that place and time. [1] [2] Floor-mounted types were designed for use with wooden doors and have been superseded with the advent of metal doors and doorframes. [2] A copy of the original crossbar type of police lock is ...
The Crossbar latch is a technology published by Phillip Kuekes of HP Labs in 2001 and granted a US patent in 2003, [1] with the goal of eventually replacing transistors in various applications. [2] This would enable the creation of integrated circuits composed solely of memristors , which, according to the patent, might be easier and less ...
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 ...
a deadbolt lock; a door chain; a locking door handle; an electromagnetic lock, which holds a door shut when electricity is supplied to it; a keycard lock, commonly used on hotel doors; a mortise lock, a lock installed in a hollowed-out pocket within a door; a rim lock, a lock fixed to the exterior of the door
An electric strike is an access control device used for door frames. It replaces the fixed strike faceplate often used with a latch (also known as a keeper). Like a fixed strike plate, it normally presents a ramped or beveled surface to the locking latch allowing the door to close and latch just like a fixed strike would.
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