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    Railway safety system for detecting overheated brakes
    224.
    发明授权
    Railway safety system for detecting overheated brakes 失效
    用于检测过热制动器的铁路安全系统

    公开(公告)号：US3767146A

    公开(公告)日：1973-10-23

    申请号：US3767146D

    申请日：1972-06-22

    Applicant: SERVO CORP OF AMERICA

    Inventor： GALLAGHER C

    IPC: B61K9/12 ,  B61K9/06 ,  B61K13/00 ,  G01J5/00 ,  B61L3/02

    CPC classification number: B61K9/06

    Abstract: A railway safety system is provided to detect defects on railroad rolling stock, such as sticking brakes, which are ultimately manifested by an abnormal temperature rise in the region of the railway car wheel rim. The system utilizes an infrared detector positioned along a section track and focused to scan the wheels of passing cars. Scanning is confined to an area of each wheel between the rail head and the bottom of the car brake shoes.

    Abstract translation: 提供了一种铁路安全系统，用于检测铁路车辆的缺陷，如铁路车辆轮辋区域的异常升温，最终表现为刹车。 该系统利用沿着轨道轨道定位的红外探测器并被聚焦以扫描经过的车辆的车轮。 扫描被限制在轨道头和汽车刹车片底部之间的每个车轮的区域。

    Automatic train length computer
    225.
    发明授权
    Automatic train length computer 失效
    自动火车长度计算机

    公开(公告)号：US3573441A

    公开(公告)日：1971-04-06

    申请号：US3573441D

    申请日：1968-08-29

    Applicant: SERVO CORP OF AMERICA

    Inventor： GLAZAR ARTHUR J

    IPC: B61L1/16 ,  G01B21/06 ,  G06F15/48 ,  G06G7/78

    CPC classification number: B61L1/161 ,  B61L1/165 ,  G01B21/06

    Abstract: An apparatus for measuring the length of a moving railroad train is provided. The apparatus includes two sensors mounted on a rail of the track in relatively close proximity to one another and two counting circuits, each of which is operatively connected to the sensors and counts the pulses from an associated fixed frequency pulse generator. The first counting circuit is enabled when a wheel passes the first sensor and disabled when that wheel passes the second sensor. The second counting circuit counts the pulses during the time interval between successive wheels passing one of the sensors. An arithmetic unit is also provided which computes the quotient of the counts of the first and second counting circuits. The quotient is directly proportional to the distance between the successive wheels. The arithmetic unit also sums the quotient for each set of successive wheels and this sum is directly proportional to the total length of the train.

    Train wheel defect detector
    226.
    发明授权
    Train wheel defect detector 失效
    火车轮缺陷检测器

    公开(公告)号：US3558876A

    公开(公告)日：1971-01-26

    申请号：US3558876D

    申请日：1968-10-16

    Applicant: SERVO CORP OF AMERICA

    Inventor： TILLMAN LEONARD ,  GLAZAR ARTHUR J

    IPC: G01N29/12 ,  B61L1/06

    CPC classification number: G01N29/12 ,  G01N2291/2696

    Abstract: A railroad wheel defect-detecting device is described. An accelerometer senses the vibrations induced in a test rail by a railroad wheel traveling thereon. The test rail is vibrationally isolated from adjacent train tracks and ground vibrations to permit sensing of train wheel defects such as flat spots on wheels, loose couplings, dragging equipment and the like. Defects are recognized when the sensed vibrations exceed preselected maximum tolerable levels, said levels being fixed or automatically regulated to compensate for varying train conditions. Identification of each wheel having a defect is provided as well as optional car identification.

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