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    Apparatus for correcting railroad track
    1.
    发明授权
    Apparatus for correcting railroad track 失效
    用于校正轨道轨迹的装置

    公开(公告)号：US3604359A

    公开(公告)日：1971-09-14

    申请号：US3604359D

    申请日：1969-04-04

    申请人： RAILWAY MAINTENANCE CORP

    发明人： DOORLEY RICHARD B ,  SETTLE PAUL S JR

    IPC分类号： E01B33/02 ,  E01B35/00

    CPC分类号： E01B35/00 ,  E01B33/02 ,  E01B2203/16

    摘要： Apparatus for use in correcting the position of railroad track including an elongated vehicle carrying means responsive to a variation in electric current, at least one elongated rigid member extending forwardly from the vehicle and pivotally supported thereon and a second vehicle pivotally supporting the other end of the member for movement along the track. At least one variable resistor attached between the member and the elongated vehicle and connected in a bridge circuit with the means responsive to current variation so that angular displacement of the elongated vehicle and the member in at least one plane from a preset relationship varies the resistance of the variable resistor effecting a response by the means responsive to current variation.