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    Mining machine sensing signal transmission connection
    1.
    发明授权
    Mining machine sensing signal transmission connection 失效
    采矿机感应信号传输连接

    公开(公告)号：US3771830A

    公开(公告)日：1973-11-13

    申请号：US3771830D

    申请日：1971-12-07

    申请人： COAL INDUSTRY PATENTS LTD

    发明人： HARTLEY D ,  PLUMPTON N ,  ALFORD D

    IPC分类号： E21C35/08 ,  E21C35/24 ,  E21C39/00 ,  H01R39/56

    CPC分类号： E21C39/00 ,  E21C35/08 ,  E21C35/24

    摘要： A mineral mining machine having a rotary cutter and a probe on the cutter head which senses the cutting horizon of the cutter head relative to boundaries of the mineral seam and which derives an electric signal which is fed to control means on the body of the machine for controlling the machine''s steering mechanism. The signal is conveyed from the rotating cutter to the non-rotating body via two spaced annular plates arranged as a capacitor.

    摘要翻译： 一种具有旋转切割器和在刀头上的探头的矿物挖掘机，其感测切割头相对于矿物边界的切割水平线，并且导出电信号，该电信号被馈送到机器主体上的控制装置 控制机器的转向机构。 信号通过作为电容器布置的两个隔开的环形板从旋转刀具传送到非旋转体。

    Apparatus for steering a longwall mineral mining machine
    2.
    发明授权
    Apparatus for steering a longwall mineral mining machine 失效
    转向长期采矿机的设备

    公开(公告)号：US3719394A

    公开(公告)日：1973-03-06

    申请号：US3719394D

    申请日：1971-01-11

    申请人： COAL INDUSTRY PATENTS LTD

    发明人： HARTLEY D

    IPC分类号： E21C35/08 ,  E21C27/24

    CPC分类号： E21C35/08

    摘要： The invention relates to apparatus for steering longwall mining machines. The apparatus comprises an electromagnetic-radiation emitter/detector which is mounted on the end of an arm pivotally mounted on the machine. The emitter/detector is located immediately behind the machine''s rotary cutter and is urged by a hydraulic jack so as to remain close to the roof.

    摘要翻译： 本发明涉及用于转向长壁采矿机的设备。 该装置包括安装在枢转地安装在机器上的臂的端部上的电磁辐射发射器/检测器。 发射器/检测器位于机器旋转切割器的后面，并被液压千斤顶推动以保持靠近屋顶。