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Pin tumbler lock, commonly used for mortise locks in the US. The next major innovation to mortise lock mechanisms came in 1865. Linus Yale, Jr.'s pin tumbler mortise cylinder lock put not only the latch or bolt itself inside the door, but also the tumblers and the bolt mechanism. Up to this point, the lock mechanism was always on the outside of ...
The electronic lock core is the same as the mechanical lock core, which can be directly modified into the existing mechanical lock. Different from the mechanical lock core, the electronic lock core integrates a miniature electronic single-chip microcomputer , there is no mechanical keyhole, and only three metal contacts are retained. [ 4 ]
The Chubb detector lock is a variation of the lever lock which was designed to detect and prevent picking attempts. Lever locks can be drilled, but usually a template or stencil is required to mark the drilling point, as the lock mechanism is commonly mortised into the door and so it is harder to determine the point at which to drill.
A tubular lock and key. A tubular pin tumbler lock, also known as a circle pin tumbler lock, radial lock, or the trademark Ace lock popularized by manufacturer Chicago Lock Company since 1933, is a variety of pin tumbler lock in which a number of pins are arranged in a circular pattern, and the corresponding key is tubular or cylindrical in shape.
The shear-line is the thin line shared by the lock plug and its cylindrical housing. If a pin sits flush with the circumference of the plug it will allow lock rotation. Lock cylinders use different length pins in different combinations to create relatively unique key bitting. Most keys have 5 cuts from bow to tip.
The plug is the part of a cylinder lock which is designed to turn when a key is inserted. Plug follower A plug follower is a device used in the assembly and disassembly of locks; it is a solid cylinder that is used to push the plug out of the lock, while preventing the springs and driver pins from moving. [8] Relocking device in a safe ...