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  • Method and apparatus for controlling the movement of an oscillating spout
    Patent number: 4575790
    Abstract: A method and apparatus for controlling the movement of an oscillating spout is presented wherein uneven distribution of spout discharge material is eliminated or at least substantially reduced by a compensating action of varying the angular speed of rotation of the spout in accordance with the angular position of the spout. The present invention is particularly suited for use in conjunction with a charging installation of a shaft furnace, particularly those charging devices having a spout with a cardan suspension system.
    Type: Grant
    Filed: July 21, 1983
    Date of Patent: March 11, 1986
    Assignee: Paul Wurth S.A.
    Inventors: Edouard Legille, Guy Thillen, Emile Lonardi
  • Method of and apparatus for controllably charging a furnace
    Patent number: 4525120
    Abstract: The position of the discharge end of a tubular member, supported from its first end so as to be rotatable about a first axis and pivotal about a second axis which intersects and is transverse to the first axis, is controlled from a remote location. The controllable tubular member may be the distribution spout of a shaft furnace charging installation which is mounted between the branches of a suspension fork which is rotatable about its own longitudinal axis. A motion transmission mechanism extends through the suspension fork and, in cooperation with the movements of the fork itself, transmits the movements imparted to a control device, which is caused to undergo precisely the same movements as it is desired to have the spout perform, to the spout.
    Type: Grant
    Filed: July 31, 1981
    Date of Patent: June 25, 1985
    Assignee: Paul Wurth S.A.
    Inventors: Edouard Legille, Pierre Mailliet
  • Apparatus for controllably charging a furnace
    Patent number: 4547116
    Abstract: The position of the discharge end of a tubular member, supported from its first end so as to be rotatable about a first axis and pivotal about a second axis which intersects and is transverse to the first axis, is controlled from a remote location. The controllable tubular member may be the distribution spout of a shaft furnace charging installation which is mounted between the branches of a suspension fork which is rotatable about its own longitudinal axis. A motion transmission mechanism extends through the suspension fork and, in cooperation with the movements of the fork itself, transmits the movements imparted to a control device, which is caused to undergo precisely the same movements as it is desired to have the spout perform, to the spout.
    Type: Grant
    Filed: November 26, 1984
    Date of Patent: October 15, 1985
    Assignee: Paul Wurth, S.A.
    Inventors: Edouard Legille, Pierre Mailliet