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Kensington Security lock: unlocked, locked The Kensington Security Slot is the rightmost opening on the side of this Acer Swift 3 laptop computer. The Kensington Security Slot (also called a K-Slot or Kensington lock) is part of an anti-theft system designed in the mid 1980s and patented by Kryptonite in 1999–2000, assigned to Schlage in 2002, and since 2005 owned and marketed by Kensington ...
In a pin tumbler lock, the bottom pin is in contact with the key. It has varying lengths, corresponding to the key's bitting cuts. The bottom pin is also known as the key pin. Break A break in the pins is a separation in one or more sections of the pin used to encode the lock for a specific key or set of keys in a master keying system. Driver ...
Disc tumbler locks are composed of slotted rotating detainer discs. A specially cut key rotates these discs like the tumblers of a safe to align the slots, allowing the sidebar to drop into the slots, thus opening the lock. Unlike a wafer tumbler lock or a pin tumbler lock, this mechanism does not use springs.
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.
Locks are usually re keyed to build master-key systems, make a set of locks share a common key, or to eliminate compromised keys. Sometimes worn pins are replaced with new pins if the old pins become too short to reach the shear-line. The shear-line is the thin line shared by the lock plug and its cylindrical housing. If a pin sits flush with ...
Wafer tumbler lock. A wafer tumbler lock is a type of lock that uses a set of flat wafers to prevent the lock from opening unless the correct key is inserted. This type of lock is similar to the pin tumbler lock and works on a similar principle. However, unlike the pin tumbler lock, where each pin consists of two or more pieces, each wafer in ...
A split pin, also known in the US as a cotter pin or cotter key, [1] is a metal fastener with two tines that are bent during installation, similar to a staple or rivet. Typically made of thick wire with a half-circular cross section, split pins come in multiple sizes and types. The British definition of " cotter pin " is equivalent to US term ...
The bored cylindrical lock arose from a need for a more cost-effective method of locking doors. The previous norm (still the norm in Europe), the mortise lock , is a more complex device, and its higher manufacturing cost as well as its more labor-intensive installation make the bored cylindrical lock an ideal substitute, both in price and ...