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  2. Hunter Industries - Wikipedia

    en.wikipedia.org/wiki/Hunter_Industries

    The company was founded in 1981 by Edwin J. Hunter and Paul M. Hunter, to produce a compact landscape sprinkler called the "PGP" (an acronym meaning "professional gear-driven pop-up"), the first sprinkler to utilize "matched-precipitation" regardless of the radii or arc. [7]

  3. Crank (mechanism) - Wikipedia

    en.wikipedia.org/wiki/Crank_(mechanism)

    [21] [22] The handle near the outer edge of the rotary part makes the crank, [21] [23] [24] a human arm powering the rotation would be the connecting rod. [21] According to F. Lisheng and T. Qingjun, the hand-crank of the rotary quern was different from a crank, which was the combination of a hand-crank and a push-and-pull connecting rod by a ...

  4. Rotary table (drilling rig) - Wikipedia

    en.wikipedia.org/wiki/Rotary_table_(drilling_rig)

    A rotary table is a mechanical device on a drilling rig that provides clockwise (as viewed from above) rotational force to the drill string to facilitate the process of drilling a borehole. Rotary speed is the number of times the rotary table makes one full revolution in one minute (rpm).

  5. Internal rotary inspection system - Wikipedia

    en.wikipedia.org/wiki/Internal_rotary_inspection...

    Internal rotary inspection system (IRIS) is an ultrasonic method for the nondestructive testing of pipes and tubes. The IRIS probe is inserted into a tube that is flooded with water, and the probe is pulled out slowly as the data is displayed and recorded. The ultrasonic beam allows detection of metal loss from the inside and outside of the ...

  6. Rotary combination lock - Wikipedia

    en.wikipedia.org/wiki/Rotary_combination_lock

    A rotary combination lock is a lock commonly used to secure safes and as an unkeyed padlock mechanism. This type of locking mechanism consists of a single dial which must be rotated left and right in a certain combination in order to open the lock.

  7. Rotary Air Force RAF 2000 - Wikipedia

    en.wikipedia.org/wiki/Rotary_Air_Force_RAF_2000

    The RAF 2000 is a two-seat kit built autogyro that was designed by Bernard J. Haseloh. Kits were first manufactured by Rotary Air Force Marketing Inc. in Canada. The marketing and manufacturing rights were sold to the Mocke Family in Upington, Northern Cape, South Africa in April 2007. They formed UMRTC Eben Mocke to produce the aircraft design.