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  2. Positive locking device - Wikipedia

    en.wikipedia.org/wiki/Positive_locking_device

    A wheel hub with a castellated nut secured in the center using a cotter pin to prevent it from unscrewing. A positive locking device is a device used in conjunction with a fastener in order to positively lock the fastener.

  3. Trim tab - Wikipedia

    en.wikipedia.org/wiki/Trim_tab

    Typical trim tabs on aileron, rudder and elevator. Trim tabs are small surfaces connected to the trailing edge of a larger control surface on a boat or aircraft, used to control the trim of the controls, i.e. to counteract hydro- or aerodynamic forces and stabilise the boat or aircraft in a particular desired attitude without the need for the operator to constantly apply a control force.

  4. Key retainer - Wikipedia

    en.wikipedia.org/wiki/Key_retainer

    Key Retainer for Small Format Interchangeable Cores. A key retainer device (KRD) is a small metal unit that is wall or door mounted, usually designed for the interchangeable core that retains one key (Key A) while the second key (Key B) is used for authorized purposes. When the key in use (Key B) is returned into the key retainer, the key held ...

  5. Retainer - Wikipedia

    en.wikipedia.org/wiki/Retainer

    Retainer agreement, a contract in which an employer pays in advance for work, to be secured or specified later, when required; Domestic worker or servant, especially one who has been with one family for a long time (chiefly British English) Affinity (medieval), also Retinue, a person or group gathered around in the service of a lord

  6. Bent (structural) - Wikipedia

    en.wikipedia.org/wiki/Bent_(structural)

    A bent in American English is a transverse rigid frame (or similar structures such as three-hinged arches). Historically, bents were a common way of making a timber frame ; they are still often used for such, and are also seen in small steel-frame buildings, where the term portal frame is more commonly used.

  7. List of Microsoft Windows versions - Wikipedia

    en.wikipedia.org/wiki/List_of_Microsoft_Windows...

    Tablet computer running a "Tablet PC Edition" of Windows XP. Two versions of Windows XP were released that were optimized for tablets. Beginning with Windows Vista, all tablet-specific components were included in the main version of the operating system.

  8. Drone sightings: A timeline of the reports, arrests and calls ...

    www.aol.com/news/drone-sightings-timeline...

    Senate Majority Leader Chuck Schumer tells reporters he requested the U.S. Department of Homeland Security to deploy "special detection systems" in New York and New Jersey to address the recent ...

  9. Bent pin analysis - Wikipedia

    en.wikipedia.org/wiki/Bent_Pin_Analysis

    4. A bent pin that has been pushed flat against the mating surface of its insert may be slightly curved. 5. An unwired bent pin that can touch two or more electrical paths simultaneously has open and shorted failure modes. Ground Rule 1 means that a pin can be bent to lie on the mating surface of its insert, or it does not bend at all.