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    • 3. 发明授权
    • Compression tool jawset
    • 压缩工具钳口
    • US07260975B2
    • 2007-08-28
    • US11059116
    • 2005-02-16
    • James E. HammTodd A. Westley
    • James E. HammTodd A. Westley
    • B21D37/00B21D37/20
    • B25B27/10
    • A compression tool having a pair of jaw arms pivotal between side plates and having inner edges provided with laterally inwardly open opposed spring pin recesses providing an opening therebetween for a spring pin, and a spring associated with the pin and biasing the jaw arms in a closing direction and biasing the spring pin rearwardly of the spring pin opening has one or the other or both the spring pin opening and spring pin modified for the pin to be displaced from the spring pin opening or canted therein in response to a fracture of at least one of the jaw arms outwardly from the corresponding pin recess toward the outer edge of the jaw arm.
    • 一种压缩工具,其具有在侧板之间枢转的一对钳口臂,并且具有设置有横向向内开放的相对弹簧销凹槽的内边缘,所述相对的弹簧销凹槽在其间提供用于弹簧销的开口,以及与所述销相关联的弹簧并且在闭合 方向和偏压弹簧销向后的弹簧销具有一个或另一个或两个弹簧销开口和弹簧销,该弹簧销开口和弹簧销被修改以使销从弹簧销开口或其中倾斜移位以响应于至少一个 颚臂从相应的销凹槽向外朝向颚臂的外边缘向外臂。
    • 5. 发明授权
    • Roll grooving apparatus
    • 轧辊切槽装置
    • US06688150B1
    • 2004-02-10
    • US10298306
    • 2002-11-18
    • Todd A. WestleyRichard W. Ballas
    • Todd A. WestleyRichard W. Ballas
    • B21D1504
    • B21D15/06B21D17/04
    • Roll grooving apparatus for rolling a circumferential groove in a pipe comprises a first support rotatably supporting a first grooving roll, a second support rotatably supporting a second grooving roll and being displaceable relative to the first support for displacing the second grooving roll toward and away from said first grooving roll, a stabilizer on the first support for stabilizing a pipe to be roll grooved, and first and second guards pivotally mounted on the second support for displacement therewith. The first guard engages the stabilizer, the second guard engages a pipe being roll grooved during a roll grooving operation and each guard is spring biased to engage the corresponding one of the stabilizer and a pipe being roll grooved. A member on the first support engages and displaces the second guard away from a pipe which has been roll grooved when the second support is displaced to move the second grooving roll away from the first grooving rolls.
    • 用于滚动管道中的周向凹槽的辊切槽装置包括可旋转地支撑第一切槽辊的第一支撑件,可旋转地支撑第二切槽辊的第二支撑件,并且可相对于第一支撑件移位,以使第二切槽辊朝向和远离所述第一切槽 第一切槽辊,用于稳定要滚动槽的管的第一支撑件上的稳定器,以及可枢转地安装在第二支撑件上的第一和第二保护件,用于与其一起移位。 第一防护件与稳定器接合,第二防护件在轧辊切槽操作期间接合在辊槽上的管道,并且每个防护件被弹簧偏置以接合相应的一个稳定器和具有滚槽的管。 当第二支撑件移位以使第二切槽辊离开第一切槽辊时,第一支撑件上的构件接合并移动已经滚动槽的管的第二护罩。