Patents by Inventor Brian R. Astbury

Brian R. Astbury has filed for patents to protect the following inventions. This listing includes patent applications that are pending as well as patents that have already been granted by the United States Patent and Trademark Office (USPTO).

  • Wire drawing method and apparatus
    Patent number: 4644769
    Abstract: A multi-stage steel wire drawing machine has, in each stage, two dies and a single drive motor for drawing the wire through the two dies. In a preferred arrangement the dies are mounted side-by-side and an idler wheel used to define part of the wire path between the dies in the stage and a coaxial driven wheel is used to draw the wire through both dies in the stage and to define part of the wire path leading to the next stage. Dry wire lubrication before die entry and water cooling after passage through the dies are disclosed.
    Type: Grant
    Filed: July 14, 1986
    Date of Patent: February 24, 1987
    Assignee: Marshall Richards Barcro Limited
    Inventors: John W. Pamplin, Brian R. Astbury
  • Wire drawing method and apparatus
    Patent number: 4464922
    Abstract: A method and wire drawing apparatus are disclosed in which rapid cooling of the wire is effected by directly contacting the wire with liquid as it leaves the die and ensuring the wire passes through a bath of coolant while on the block. The bath can be formed against the wire-engaging surface of the block by a cowl.
    Type: Grant
    Filed: May 13, 1982
    Date of Patent: August 14, 1984
    Assignee: Marshall Richards Barcro Limited
    Inventors: John W. Pamplin, Brian R. Astbury, Richard Shillito
  • Wire drawing method and apparatus
    Patent number: 4345451
    Abstract: Method and apparatus for drawing wire which uses a partial turn of wire wedged in an endless groove in a rotating wheel to generate the necessary drafting tension and wherein the drawn wire is cooled by direct contact with a liquid coolant as it leaves the die and while it is wedged in the groove. In a multi-stage apparatus, the coolant is removed from the wire downstream of the wheel and upstream of the next sizing opening by an air wipe.
    Type: Grant
    Filed: December 10, 1979
    Date of Patent: August 24, 1982
    Assignee: Marshall Richards Barcro Limited
    Inventors: John W. Pamplin, Brian R. Astbury, Richard Shillito