Patents Assigned to William M. Alexander
  • Patent number: 4131713
    Abstract: A leather yarn embodies a novel combination of five parameters which enables the leather yarn to be readily worked by garment knitting machine needlework into a unique knitted fabric having a soft "leather hand".The parameters are:1. Softness;2. Consistent Thinness of Depth;3. Consistent Narrowness of Width;4. Adequate Tensile Strength; and5. Continuity.The leather yarn is cut from a thin leather having a weight in the range of about 3 oz. to 11/2 oz. as measured by a standard leather thickness gauge such as the Woburn ounce weight caliber, made by the Woburn Machine Company, Woburn, Massachusetts.The softness parameter is obtained by the selection of a leather with the softness characteristics of fine garment/dress glove leather (a standard category in the tanning industry).The consistent narrowness of width and thinness of depth (and manufacture of the yarn at a marketable cost) is obtained by a number of specifically interrelated machine cutting operations.
    Type: Grant
    Filed: June 17, 1977
    Date of Patent: December 26, 1978
    Assignee: William M. Alexander
    Inventors: Leslie P. Barta, William M. Alexander