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  2. Glossary of locksmithing terms - Wikipedia

    en.wikipedia.org/wiki/Glossary_of_locksmithing_terms

    In pin tumbler locks, the series of key cuts on a key causes the pins to line up at the shear line or gate so the lock will open. In warded locks, the key cuts bypass the wards so the key can push or pull the bolt. [6] Key pin In a pin tumbler lock, the key pin is in contact with the key. It has varying lengths, corresponding to the key's ...

  3. Padlock - Wikipedia

    en.wikipedia.org/wiki/Padlock

    In the early 1920s, Harry Soref started Master Lock off with the first laminated padlock. Plates that were punched from sheet metal were stacked and assembled. Holes that were formed in the middle of the plates made room to accommodate the locking mechanism. The entire stack of plates, loaded with the lock parts in it, was riveted together.

  4. Master keying - Wikipedia

    en.wikipedia.org/wiki/Master_keying

    A practical attack exists to create a working master key for an entire system given only access to a single master-keyed lock, its associated change key, a supply of appropriate key blanks, and the ability to cut new keys. [2] Locksmiths may also determine cuts for a replacement master key, when given several different key examples from a given ...

  5. Puzzle lock - Wikipedia

    en.wikipedia.org/wiki/Puzzle_lock

    In Europe, many small puzzle padlocks had front plate with a face or mask. The padlocks were designed to secure small bags or pouches and could be found across Europe with the most around the Danubian provinces and Aquileia. [2] They were often shaped like rings and may have been fitted around the mouth of a bag as a sort of tamper-proof seal. [3]

  6. Rotary combination lock - Wikipedia

    en.wikipedia.org/wiki/Rotary_combination_lock

    Many combination locks have three wheels, but the lock may be equipped with additional wheels, each with a drive pin and fly, in a similar manner. The number of wheels in the mechanism determines the number of specific dial positions that must be entered to open the lock, so a three-sequence combination is required for a three-wheel lock.

  7. Lockset - Wikipedia

    en.wikipedia.org/wiki/Lockset

    Metal fire-resistance rated door with a lockset consisting of a locking latch bolt operated by lever handle with an escutcheon that encompasses the locking mechanism.. A lockset (alternatively lock set) is the hardware and components that make up the locking or latching mechanism that can usually be found on a door or other hinged object but can also include sliding doors and dividers. [1]

  8. Lever tumbler lock - Wikipedia

    en.wikipedia.org/wiki/Lever_tumbler_lock

    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.

  9. Tubular pin tumbler lock - Wikipedia

    en.wikipedia.org/wiki/Tubular_pin_tumbler_lock

    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.

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