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  2. Chubb detector lock - Wikipedia

    en.wikipedia.org/wiki/Chubb_detector_lock

    A Chubb detector lock is a lever tumbler lock with an integral security feature, a re-locking device, which frustrates unauthorised access attempts and indicates to the lock's owner that it has been interfered with. When someone tries to pick the lock or to open it using the wrong key, the lock is designed to jam in a locked state until ...

  3. 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.

  4. Lock bumping - Wikipedia

    en.wikipedia.org/wiki/Lock_bumping

    The lock is not visibly damaged, although the force of the bump can leave an indentation on the front of the cylinder. Certain clicking and vibrating tools designed for bumping can also be used. These allow for rapid repetition of bumping. Though some locks have advertised "bump proof" features, only a rare few key-pin locks cannot be bumped.

  5. 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.

  6. Trapped-key interlocking - Wikipedia

    en.wikipedia.org/wiki/Trapped-key_interlocking

    This is a trapped-key interlock on the door of an electrical switchgear cabinet. It is attached with one-way security screws to discourage casual removal, which would defeat the interlock scheme. Trapped-key interlocking utilizes locks and keys for sequential control of equipment and machinery to ensure safe operation. Trapped-key interlocks ...

  7. Bitting (key) - Wikipedia

    en.wikipedia.org/wiki/Bitting_(Key)

    A bit key with its main parts labelled. Bitting is the depth of key cuts on a cylinder key for a pin tumbler lock, often expressed as a number. Bitting also refers to the combination of key cuts on a bit key for a warded lock or lever tumbler lock. The exact geometry of modern keys is usually described by a code system. [1]

  8. New York traffic falls after $9 congestion fee - AOL

    www.aol.com/york-traffic-falls-9-congestion...

    The scheme aims to ease New York's notorious traffic problems and raise billions for the public transport network. Most drivers are charged $9 once per day to enter the congestion zone at peak ...

  9. Futures dip after S&P 500, Nasdaq's strong close - AOL

    www.aol.com/news/futures-slip-p-500-nasdaqs...

    (Reuters) -Futures linked to Wall Street's main indexes took a pause on Thursday after the S&P 500 and Nasdaq ended the previous session on a positive note, while investors awaited some more ...

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