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    • 15. 发明授权
    • Collapsible and adjustable gage apparatus
    • 可折叠和可调量具设备
    • US4213246A
    • 1980-07-22
    • US926522
    • 1978-07-20
    • Daniel M. Stevens
    • Daniel M. Stevens
    • E21B47/08G01B5/12G01B3/02E21B17/10
    • G01B5/12E21B47/08
    • A collapsible and adjustable gage apparatus comprising a plurality of wear link members adapted to engage the inner walls of pipe, which members are pivotally attached through articulated mechanical arms to a rotatably adjustable collar and to a slidable, releasable collar. The gage apparatus may be adapted to different diameters of pipe by varying the distance between the adjustable collar and the releasable collar. The gage apparatus may be collapsed for easier withdrawal from a pipe by actuating the catch mechanism which holds the releasable collar in a fixed position, permitting the releasable collar to slide away from the adjustable collar, thereby collapsing the wear link members and articulated arms so as to reduce the effective diameter of the apparatus to its smallest possible size.
    • 一种可折叠和可调整的量规设备,包括适于接合管子内壁的多个耐磨连件,该构件通过铰接的机械臂枢转地附接到可旋转的可调节的环和可滑动的可释放的环。 量规设备可以通过改变可调套环和可释放套环之间的距离来适应不同直径的管。 通过致动将可释放的套环保持在固定位置的卡扣机构,计量装置可以收缩以便更容易地从管道中取出,从而允许可释放的套环从可调节的套环滑离,从而使磨损连杆构件和铰接臂塌陷,使得 以将装置的有效直径减小到尽可能小的尺寸。