Cutter Means Patents (Class 139/7F)
  • Patent number: 4039007
    Abstract: An Axminster carpet loom is described which has improved cutting means for severing pile lengths of yarn from the pile yarns. In the past these have been severed by a pair of knives which operate rather like a pair of scissors but they require skill and time to set up. The present improved means include a serrated edge blade and one or more knives mounted on weft-wise reciprocatable carriages, the cutting edges being reciprocated over the serrations in the blade which locate the pile yarns during the cutting operation. Such knives can be relatively quickly and easily removed and replaced by fresh or reground knives when they need sharpening and so the loom can quickly be started again.
    Type: Grant
    Filed: March 29, 1976
    Date of Patent: August 2, 1977
    Assignee: Carpets International Limited
    Inventors: Kenneth John Coleman, Phillip John Brown, Howard John Stephen Watkins
  • Patent number: 3963057
    Abstract: A method of making an Axminster carpet having different heights of pile in the same pile forming pick in which yarn carriers selected to supply high pile are given an additional lift to position the yarns drawn therefrom out of the general plane of yarns drawn-off nonselected carriers. Thereafter means, such as a finger mounted on the knife box, is traversed across the loom ahead of the knife to engage the selected yarns and lengthen them.
    Type: Grant
    Filed: November 29, 1974
    Date of Patent: June 15, 1976
    Assignee: Thomson Shepherd and Company Limited
    Inventor: Geoffrey Wilson Dewhirst
  • Patent number: 3938559
    Abstract: A method of increasing the length of tuft to be woven into an Axminster carpet on a gripper loom. After the yarns have been drawn-off the yarn carriers by relative movement between the yarn carriers and the grippers, means, such as a finger mounted on the knife box, is caused to traverse the loom ahead of the knife and successively engage the drawn-off yarns thereby increasing the length of the tufts.
    Type: Grant
    Filed: November 29, 1974
    Date of Patent: February 17, 1976
    Assignee: Thomson Shepherd and Company Limited
    Inventor: Geoffrey Wilson Dewhirst