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    • 6. 发明授权
    • Side-loading suspension frame and ladder assembly for maintenance of
energized power transmission lines
    • 侧装式悬架和梯形组件,用于维护通电输电线路
    • US5494132A
    • 1996-02-27
    • US195528
    • 1994-02-14
    • Harry L. Hansen
    • Harry L. Hansen
    • B61B12/00H02G1/02E04G3/10
    • B61B12/00H02G1/02
    • A frame and ladder assembly which includes an electrically conductive frame that is provided to engage two, generally parallel, aerially suspended, transmission conductors of a phase bundle and to be supported therefrom; within the frame a side opening structure which defines a cradle is provided, and in the cradle structure is provided means to engage the phase, such as a plurality of rollers with circumferential recesses, so that the frame can be repositioned along the phase similar to a carriage, without disengaging the frame from the phase; the ladder assembly comprises an insulated triangular ladder assembly which is attached at its vertex to the frame and hangs beneath it, permitting a line worker situated on the ladder assembly to easily perform maintenance and repairs on an energized phase directly above the ladder assembly; the ladder assembly is also comprised of pivotally connected ladder legs so that when the top of one of the two inclined side ladders is released from the frame, the other ladder legs of the assembly will pivot relative to one another and hang vertically, downwardly from the frame, affording the line worker a means of safely descending from the energized bundled conductor phase; a support cable with an insulating segment is releasably attached at one of its ends to a harness connected to the frame and at its other end to a lifting means, such as a helicopter, which can aerially transport the ladder and frame assembly to, and position it in supportable engagement with two of the transmission conductors in the side opening cradle of the frame.
    • 一种框架和梯子组件,其包括导电框架,所述框架和梯子组件设置成与相束的两个大致平行的空气悬挂的传输导体接合并由其支撑; 在框架内设置了限定支架的侧开口结构,并且在支架结构中设置有用于使相位接合的装置,例如具有周向凹部的多个辊,使得框架可以沿着相位相似地重新定位 没有从框架脱离相位; 梯子组件包括绝缘的三角形梯形组件,其在其顶点附接到框架并且悬挂在其下方,允许位于梯子组件上的线路工作者容易地在正在梯子组件上方的通电阶段进行维护和修理; 梯子组件还包括枢转地连接的梯形腿,使得当两个倾斜侧梯中的一个的顶部从框架释放时,组件的另一个梯形腿将相对于彼此枢转并垂直地从 为线路工人提供从通电束带导体相位安全降落的手段; 具有绝缘段的支撑电缆在其一端被可释放地附接到连接到框架并且在另一端的线束到诸如直升机的提升装置,其可以将梯子和框架组件空气传输到位置 它可与框架的侧面开启支架中的两个传输导体支撑接合。
    • 7. 发明授权
    • Method of making a leaf rejecting rain gutter
    • 制作叶片拒绝雨水沟的方法
    • US5491998A
    • 1996-02-20
    • US377491
    • 1995-01-24
    • Harry Hansen
    • Harry Hansen
    • B21D5/08E04D13/076B21D51/16
    • E04D13/076B21D5/08
    • An improved elongated gutter system for mounting under the edge of a roof of a structure for receiving water run-off in preference to leaves and debris. The gutter system includes a back support wall having a top and a bottom for mounting against a wall of the structure. A trough is joined to the bottom of the back support wall. A shield is joined with the top of the back support wall and has a free front end. The shield forms a continuous surface that extends from the back support wall and turns inward over the trough before ending, so that rain, leaves and debris move downward over said shield with the rain entering the trough and the leaves and debris passing beyond the trough. The improvement resides in a reinforcing fold-over edge on the free front end of the shield, wherein the fold-over edge is generally parallel to the trough.
    • 一种改进的细长沟槽系统,用于安装在结构的屋顶的边缘下,以优先于叶和碎屑接收水流出物。 沟槽系统包括具有顶部和底部以用于抵靠结构的壁安装的后支撑壁。 槽连接到后支撑壁的底部。 护罩与后支撑壁的顶部连接并且具有自由的前端。 护罩形成从后支撑壁延伸的连续表面,并在结束之前向内倾斜,使得雨,叶和碎屑向下移动越过所述屏蔽件,雨进入槽中,叶片和碎屑通过槽。 改进在于屏蔽件的自由前端上的加强折叠边缘,其中折叠边缘通常平行于槽。