Based on so-called single-tube system with change-of-air operation, that is, compressed air is used in transmission of mail boxes in one direction, and suction air for other direction; system arranged for semi-automatic operation.


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    Title :

    Pneumatic mail tubes in railway repair shop at Schwerte, Germany


    Additional title:

    Die Rohrpostanlage im Eisenbahnausbesserungswerk Schwerte


    Contributors:
    Berens, J. (author)


    Publication date :

    1926


    Size :

    2 pages


    Remarks:

    3 Figs.


    Type of media :

    Article (Journal)


    Type of material :

    Print


    Language :

    German




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    Pneumatic tubes to expedite air mail deliveries

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    Pneumatic mail tubes and operation of automatic railroads

    Stuart, Kenneth E. | Engineering Index Backfile | 1922