New type of Kvaerner Brug hatch cover is so designed that each hatch is covered equally by two steel pontoon type sections built as airtight box girders; one section is lifted by hydraulic cylinders to allow for other section, which is self-propelled, to roll under and below first section; first section is then lowered to ride "piggyback" on second; together, sections will perform as motorized, self-propelled package which can be moved electrically to any available position over adjacent hatchways along rail tracks placed on each side of coaming top and extending fore and aft also between hatches, etc. (45560)


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    Title :

    New fore-and-aft rolling hatch cover


    Additional title:

    Shipbldg Shipping Rec


    Published in:

    Publication date :

    1968


    Type of media :

    Article (Journal)


    Type of material :

    Print


    Language :

    English


    Keywords :


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