Needle thread work limb retainers Patent #: 4095539
ApplicationNo. 05/940935 filed on 09/11/1978
US Classes:112/184, Vertical axis112/260, Work supports112/302Thread guiding or handling
ExaminersPrimary: Reynolds, Wm. Carter
Attorney, Agent or Firm
International ClassesD05B 73/00 (20060101)
D05B 73/12 (20060101)
AbstractA throat plate having means attached thereto for preventing the work limb in a loop of thread from being drawn up through the material being sewn by the take-up limb due to friction therebetween causing a loose stitch known as a halo.