Cooke, Troughton and Sims, of York, have developed in collaboration with London and North Eastern Railway, 8-v 5-w lamp; in test carried out, it gave illuminating power of 41.7 ft candles over area of 4.05 sq ft at distance of 31 ft 4 in., this corresponding to beam of 41,100 cp.


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    Title :

    Cooke fog penetrating lamp


    Additional title:

    Ry Gaz


    Published in:

    Publication date :

    1933


    Type of media :

    Article (Journal)


    Type of material :

    Print


    Language :

    English


    Keywords :


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