Patents Assigned to A/S Bjolvefossen
  • Production of cast iron
    Patent number: 4500352
    Abstract: The invention provides apparatus for and a method of adding magnesium containing material to molten iron in the production of nodular or modified graphite irons comprising a block of magnesium containing material, and a plunging arm, the block and the arm being shaped such that the block is securely mountable on the arm with the arm projecting into the block substantially to its center of mass.
    Type: Grant
    Filed: November 23, 1983
    Date of Patent: February 19, 1985
    Assignees: Stanton and Staveley Limited, A/S Bjolvefossen
    Inventors: George E. Else, Cyril Millward, Ronald H. T. Dixon, Knut Jorgensen