Patents by Inventor Denys W. Brough

Denys W. Brough 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).

  • Patent number: 5171971
    Abstract: In a textile machine, a yarn heating arrangement incorporates a channel whose bottom surface is heated and a door which closes the channel and on whose inner surface are mounted yarn guides providing a yarn path adjacent the heated surface when the door is closed and the yarn guides are disposed within the channel. The length of the heated yarn path, or the proximity of the yarn to the heated bottom surface of the channel is adjustable to vary the level of heating of the yarn, and the door can be opened for cleaning and threading. A pivotal elongate yarn guide prior to the heater or pivotal elongate cooling track after the heater allow variation of the point of yarn inlet to or yarn outlet from the heater.
    Type: Grant
    Filed: October 24, 1991
    Date of Patent: December 15, 1992
    Assignee: Rieter-Scragg Limited
    Inventors: Geoffrey Naylor, Denys W. Brough
  • Patent number: 4719771
    Abstract: Apparatus for applying liquid to a running yarn in a textile machine comprises a hollow body providing a manifold for the liquid and an elongate tube extending horizontally across the manifold. The tube is retained in a bore in the body by a yarn guide which is detachably secured to the body and the bore in the tube communicates with a groove yarn path provided by the yarn guide via a bore in the yarn guide of larger diameter than the bore in the tube. The constant supply of liquid to the yarn is provided by the controlled flow of liquid along the tube whose length is at least 100 times the diameter of the bore therein. A height adjustable weir in a liquid supply tank supplies liquid to the manifold at a predetermined pressure. The yarn path has a plurality of yarn contact points to ensure complete application of liquid by the yarn.
    Type: Grant
    Filed: February 26, 1986
    Date of Patent: January 19, 1988
    Assignee: Rieter Scragg Limited
    Inventors: Denys W. Brough, Christopher J. Lawrence
  • Patent number: 4581884
    Abstract: A textile machine, which comprises a stand-off creel, first, second and third feed means, first and second heaters, cooling zone, false twist device and take-up means, has the second and third feed means, false twist device, second heater and take-up means mounted on a common frame with the second heater disposed vertically behind the take-up means and the third feed means located forwardly of the second heater, and has guide means operable to guide a yarn from the outlet end of the second heater through 90.degree. to the third feed means. This enables the second heater to be mounted lower in the frame than with previous machines and enables the false twist device, second feed means, cooling zone and first heater to be positioned nearer to the operator for operation, maintenance or cleaning.
    Type: Grant
    Filed: September 14, 1984
    Date of Patent: April 15, 1986
    Assignee: Rieter-Scragg Limited
    Inventor: Denys W. Brough
  • Patent number: 4549361
    Abstract: A stabilizing or secondary heater, for producing a crimped set yarn, comprises a tube having two substantially parallel bores extending therealong, one bore providing a yarn path for the yarn. Air is passed along the other bore, in a direction opposed to the direction of travel of the yarn, so as to be heated, and then through a communicating inlet and passages to impinge upon and be entrained by yarn, the air travelling along the yarn path bore to prevent entrainment of cold ambient air therealong and to ensure good heat transfer to the yarn.
    Type: Grant
    Filed: November 30, 1983
    Date of Patent: October 29, 1985
    Assignee: Rieter-Scragg Limited
    Inventors: Denys W. Brough, Christopher J. Lawrence
  • Patent number: 4538409
    Abstract: A crossed belt false twist device for texturing yarn which includes two belts supported by pulleys to provide two free runs crossing at a crossing region which is nearer to one pulley in each case than to the other pulley. Longer belts can be used than heretofore known without sacrificing stability and control, thereby also reducing wear and allowing cooler running.
    Type: Grant
    Filed: September 27, 1983
    Date of Patent: September 3, 1985
    Assignee: Rieter-Scragg Limited
    Inventor: Denys W. Brough