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  2. Door closer - Wikipedia

    en.wikipedia.org/wiki/Door_closer

    Modern manual door closer Eclipse door spring and separate checking mechanism. A door closer is a mechanical device that regulates the speed and action of a door’s swing. [1] Manual closers store the force used to open the door in some type of spring and reuse it to close the door. Automatic types use electricity to regulate door swing behavior.

  3. Power window - Wikipedia

    en.wikipedia.org/wiki/Power_window

    Inside driver's door showing hydraulic cylinder for power window Window controls on center console between front seats (2005 Saab 9-5) Packard had introduced hydraulic window lifts (power windows) in fall of 1940, for its new 1941 Packard 180 series cars. [1] [2] This was a hydro-electric system.

  4. Technology of the New York City Subway - Wikipedia

    en.wikipedia.org/wiki/Technology_of_the_New_York...

    Some of these projects, such as subway line automation, proposed platform screen doors, the FASTRACK maintenance program, and infrastructural improvements proposed in 2015–2019 Capital Program, contribute toward improving the system's efficiency. Others, such as train-arrival "countdown clocks", "Help Point" station intercoms, "On the Go!

  5. Storm door - Wikipedia

    en.wikipedia.org/wiki/Storm_door

    Rollscreen. This is a relatively new hybrid of the full view and ventilating storm doors. The screen is connected at the top of the storm door's window, and when not in use it automatically rolls up on a tensioned dowel in the top of the door. This gives a full-view door when the screen is not in use, and a ventilating door when it is.

  6. 20 useful and innovative gadgets to make life easier for ...

    www.aol.com/lifestyle/products-to-make-life...

    It has a hydraulic lift and an adjustable handle under the seat so you can get the right height you need. The curved and padded backrest can be removed, too. $30 at Walmart

  7. Interlock (engineering) - Wikipedia

    en.wikipedia.org/wiki/Interlock_(engineering)

    Power cannot be re-applied to the kiln until the kiln door is locked, releasing the key, and the key is then returned to the disconnecting switch interlock. [1] A similar two-part interlock system can be used anywhere it is necessary to ensure the energy supply to a machine is interrupted before the machine is entered for adjustment or maintenance.

  8. White House press secretary defends Hunter Biden pardon ... - AOL

    www.aol.com/white-house-press-secretary-defends...

    White House press secretary Karine Jean-Pierre on Monday defended President Joe Biden's decision to pardon his son Hunter despite telling the press multiple times that the president had no such plans.

  9. High-frequency vibrating screens - Wikipedia

    en.wikipedia.org/wiki/High-frequency_vibrating...

    The purpose of the vibrating screen is that particles are introduced to the gaps in the screens repeatedly. The frequency of the screen must be high enough so that it prevents the particles from blocking the apertures and the maximum height of the particle trajectory should occur when the screen surface is at its lowest point.

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