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  2. Time-delay combination locks - Wikipedia

    en.wikipedia.org/wiki/Time-delay_combination_locks

    [2] Modern time delay combination locks can have many functions such as multiple different codes, pre-set time lock settings (open and close times), pre-set vacation times (e.g. Christmas Day), dual code facility, and a full audit trail providing a detailed record of the lock history showing who opened the lock, when and how long it was open ...

  3. Electric strike - Wikipedia

    en.wikipedia.org/wiki/Electric_strike

    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.

  4. List of International Space Station spacewalks - Wikipedia

    en.wikipedia.org/wiki/List_of_International...

    Demonstrated shuttle thermal protection repair techniques and enhancements to the Station's attitude control system. installed a base and cabling for an External Stowage Platform, rerouted power to Control Moment Gyroscope-2 (CMG-2), retrieved two exposure experiments, and replaced a faulty global positioning system antenna on the station. [70] 60.

  5. Lever frame - Wikipedia

    en.wikipedia.org/wiki/Lever_frame

    A mechanical lever frame inside the signal box at Knockcroghery in Ireland Waterloo station A signalbox, LSWR (Howden, Boys' Book of Locomotives, 1907). Mechanical railway signalling installations rely on lever frames for their operation to interlock the signals, track locks [1] and points to allow the safe operation of trains in the area the signals control.

  6. Metal stitching - Wikipedia

    en.wikipedia.org/wiki/Metal_stitching

    Scott used his patents to secure the repair process, called it the ‘Metalock Repair Process’, and began to offer franchises under the Metalock Corporation trade name after starting his own operation in Long Island City, NY. Shortly thereafter, Thomas O. Oliver Ltd. (based in Ontario, Canada) was the first company to purchase a franchise.

  7. Lock time - Wikipedia

    en.wikipedia.org/wiki/Lock_time

    The lock time of conventional bolt-action rifles is usually around 2.6 to 9.0 milliseconds. [1] For example, the SIG Sauer 200 STR / SSG 3000 has a relatively short lock time of 2.4 ms. [ 2 ] Firearm mechanisms utilizing a hammer are known for having long lock times since the hammer becomes an extra moving part contributing to a longer lock time.

  8. Gimbal lock - Wikipedia

    en.wikipedia.org/wiki/Gimbal_lock

    Gimbal lock is the loss of one degree of freedom in a multi-dimensional mechanism at certain alignments of the axes. In a three-dimensional three- gimbal mechanism, gimbal lock occurs when the axes of two of the gimbals are driven into a parallel configuration, "locking" the system into rotation in a degenerate two-dimensional space.

  9. Lux Products - Wikipedia

    en.wikipedia.org/wiki/Lux_Products

    The company's timer line includes the Minute Minder timers, the modern versions thereof introduced by the Lux Clock Manufacturing Company around 1950. The original timers were offered in white with red numerals, but different colors were later added to the line.