The paper refers briefly to the development of power-operated doors on multiple-unit electric stock from the system of manually-operated gates used on the early “tubes”. Systems of door control are discussed, with particularreference to protection against irregular operation, and particularsare given of the special types of door-control magnet valves developed by London Transport and adopted for certain BritishRailways electrification schemes. Compressed-air door-operating engines are similarly described, with a reference to methods of “controlling” the door movement and arrangements for the detraining of passengers in emergency. Some principles governing the design of door “proving” circuits are stated, with a mention of recent developments in the detection of door obstruction or faulty operation of the equipment. The concluding Sections refer to a new type of key-operated door controller, to experimental exterior door-control mechanism designed especially for operation by a guard located at the centre of a train, and statistical evidence of service reliability.


    Access

    Check access

    Check availability in my library

    Order at Subito €


    Export, share and cite



    Title :

    Power-operated doors on multiple-unit electric railway stock


    Contributors:


    Publication date :

    1950-01-01


    Size :

    4 pages




    Type of media :

    Article (Journal)


    Type of material :

    Print


    Language :

    English


    Keywords :


    Power-operated doors for railway rolling stock

    Collins, A.F. | Engineering Index Backfile | 1945


    Power-operated doors for railway rolling stock

    Collins, A.F. | Engineering Index Backfile | 1945



    INCREASED VERSATILITY MULTIPLE-UNIT RAILWAY ROLLING STOCK

    KONDIRA EMMANYUEL | European Patent Office | 2021

    Free access

    RAILWAY CAR DOORS

    CHOI DOO HO / KIM JEONG GUK / LIM JAE YONG et al. | European Patent Office | 2016

    Free access