Airport-closure device in which all advantages of mechanically operated window are incorporated in circular port has been developed by Kearfott Engineering Co., New York, N. Y.; disadvantages of usual hinged type of port are eliminated inasmuch as portclosure member rolls upward into port casing instead of hinging outward into limited space of cabin; weathertightness is obtainable without clamping screws; operation through turning of handle.


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    Title :

    A rolling airport-closure device


    Additional title:

    Mar. Eng. Shipg. Age


    Published in:

    Publication date :

    1929


    Size :

    2 pages


    Remarks:

    3 Figs.


    Type of media :

    Article (Journal)


    Type of material :

    Print


    Language :

    English


    Keywords :





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