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  2. Evacuation tip - Wikipedia

    en.wikipedia.org/wiki/Evacuation_tip

    The evacuation tips of these tube are the narrow points at the top. The evacuation tip is a port on any glass envelope or vessel inside of which specific gasses or a vacuum must be held. They are very often seen on nixies or vacuum tubes. It is used to evacuate gases from the tube, and in the case of nixies, add the proper mix of gases before ...

  3. Schrader valve - Wikipedia

    en.wikipedia.org/wiki/Schrader_valve

    The Schrader valve is used on virtually all automobile tires and motorcycle tires and most wider-rimmed bicycle tires.In addition to tube and tubeless tires, Schrader valves of varying diameters are used on many refrigeration and air conditioning systems to allow servicing, including recharging with refrigerant; by plumbers conducting leak-down pressure tests on pipe installations; as a ...

  4. Roughing pump - Wikipedia

    en.wikipedia.org/wiki/Roughing_pump

    A roughing pump is any vacuum pump (typically mechanical) used to initially evacuate a vacuum system, as a first stage towards achieving high vacuum or ultra high vacuum.The term "roughing pump" derives from the vacuum range it works in, "rough vacuum", above 1x10 −3 torr (0.1 Pa).

  5. Manual fire alarm activation - Wikipedia

    en.wikipedia.org/wiki/Manual_fire_alarm_activation

    If there was, they would evacuate the building and call the fire department. Antique Holtzer-Cabot coded pull station. System tests could be conducted in one of two ways: In a coded pull station, there is either a test hole on the front (usually activated with an Allen wrench) or a test switch on the inside.

  6. Lawsuit alleges U.S. failed to evacuate Palestinian Americans ...

    www.aol.com/news/lawsuit-alleges-u-failed...

    The lawsuit accuses the State Department of discriminating against Americans of Palestinian origin by abandoning them in a war zone and not making the same effort that it would to promptly ...

  7. Man Charged with Fatally Shooting Son After Accusing ... - AOL

    www.aol.com/man-charged-fatally-shooting-son...

    A Utah man is said to have killed his son following an argument on Christmas Eve, in which he accused him and his fiancée of "withholding information" about his wife’s alleged affair.

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