With Auxiliary Vertical Adjustment Patents (Class 172/448)
  • Patent number: 4058180
    Abstract: To facilitate broadcasting fertilizer from different levels above the ground, in addition to linkages for mounting the device on a three point power hitch of the tractor, linkages and an accompanying hydraulic system are provided for elevating the spreader above the level to which the tractor power hitch can raise it. The device comprises an open frame 2 formed by upright supports 5 and a cross arm 4. The open frame construction facilitates the connection of the tractor power take-off shaft to the spreader, and the connection of linkages between the tractor and spreader for control of the metering mechanism of the spreader.
    Type: Grant
    Filed: July 27, 1976
    Date of Patent: November 15, 1977
    Assignee: Amazonen-Werke H. Dreyer
    Inventor: Heinz Dreyer
  • Patent number: 3990723
    Abstract: A mechanism is provided for the positioning of an implement attached to a small garden tractor which includes a power takeoff system from the engine of the tractor connected to a device that controls a power drive mechanism attached to a positioning linkage that connects with the conventional manual lifting system for such tractors.
    Type: Grant
    Filed: April 14, 1975
    Date of Patent: November 9, 1976
    Assignee: Hart Kohn, Jr.
    Inventor: Robert C. Sessions