Angular Drive Patents (Class 289/9)
  • Patent number: 4351551
    Abstract: A bale twine knotter comprised of a rotatably mounted billhook for forming a loop of twine thereabout and a wiper arm with an improved adjustably mounted wiper for sliding a twine loop from the billhook while the twine end is retained in a jaw of the billhook to complete the formation of a twine knot. The adjustable mounting of the wiper permits the spacing of the wiper from the billhook to be adjusted easily and accurately and permits the wiper and wiper arm to be made of strong, rigid materials.
    Type: Grant
    Filed: July 25, 1980
    Date of Patent: September 28, 1982
    Assignee: Deere & Company
    Inventor: Michael J. Verhulst