Patents Assigned to Eschweiler Bergwerks-Verein AG
  • Patent number: 4830233
    Abstract: A sluice type apparatus for discharging batches of material from a pressurized enclosure has a container with an upper inlet and a lower outlet each closable by a slide gate. Preferably, each slide gate has two slide gate members driven by respective piston cylinder devices so that one gate is closed while the other gate is open and vice versa. At least the slide gate members for opening and closing the inlet are withdrawn from their inlet closing position into a respective outwardly closed or sealed chamber for making it easier to keep the container pressurized. The seals between the chamber entrance slots and the respective slide gate member are not required to be precision seals because any material that may pass into these outwardly closed or sealed chambers is easily removed again.
    Type: Grant
    Filed: July 16, 1987
    Date of Patent: May 16, 1989
    Assignee: Eschweiler Bergwerks-Verein AG
    Inventors: Hubert Thelen, Menrad Wesp
  • Patent number: 4103732
    Abstract: The inner surface of a continuous-casting mold is efficiently lubricated by a lubricating ring rotatably held in a respective recess around the upper edge of the mold. The lubricating ring has a ring chamber for receiving the lubricant and radially inwardly directed distribution channels connecting the ring chamber to the inner wall of the mold. The ring is rotated either by a rotating electromagnetic field or by the lubricant supply itself. In the latter embodiment there are wings in the ring chamber and the lubricant is fed into the ring chamber tangentially thereto.
    Type: Grant
    Filed: March 2, 1977
    Date of Patent: August 1, 1978
    Assignees: ARBED, Acieries Reunies de Burbach-Eich-Dudelange S.A., Eschweiler Bergwerks-Verein AG
    Inventor: Dietrich Habert