Control by cascade connection of two motors, according to Swiss patent; Ward-Leonard control; advantages of collective control in comparison with common push button system; automatic door closing and safety devices.


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    Title :

    Recent developments of electric elevators


    Additional title:

    Die Entwicklung der elektrischen Aufzuege in den letzten Jahren


    Contributors:
    Blaser, O. (author)

    Published in:

    Publication date :

    1948


    Size :

    6 pages


    Type of media :

    Article (Journal)


    Type of material :

    Print


    Language :

    German


    Keywords :


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