Patents Assigned to St. Anne's Board Mill Company Limited
  • Flowboxes
    Patent number: 4197159
    Abstract: A flowbox for a paper or board web-making machine is provided with at least one side wall movable along an axis at right angles to the direction of stock flow through the flowbox, whereby the width of the flowbox may be varied and the web deckled before it leaves the flowbox.
    Type: Grant
    Filed: August 8, 1978
    Date of Patent: April 8, 1980
    Assignee: St. Anne's Board Mill Company Limited
    Inventors: Michael D. Newns, Brian W. Attwood
  • Flowbox with convergent wall portions
    Patent number: 4083750
    Abstract: For a paper, board or similar fibrous web making machine, a flowbox comprising an enclosed explosion chamber having upstream and downstream walls converging from a top wall toward a bottom wall, the stock inlet being directed at the downstream wall adjacent the region of convergence. A stock outlet is provided by non-divergent upper and lower plates defining an exit slice, the lower plate being a continuation of the bottom wall and the lower plate being shorter than the upper plate.
    Type: Grant
    Filed: May 3, 1976
    Date of Patent: April 11, 1978
    Assignee: St. Anne's Board Mill Company Limited
    Inventors: Michael David Newns, Brian William Attwood