Patents Assigned to Walker Forge, Inc.
  • Patent number: 5642637
    Abstract: A reciprocating lubricator assembly for a die press employs a non-linear travel path and a mechanical advantage to permit the use of an actuator having a very short stroke to move a lubricating nozzle into and out of alignment with the dies, thereby permitting very rapid operation and increasing the press's production rate. The design of the lubricator assembly may depend upon the size of the press. Relatively small presses employing dies on the order of 6" can accommodate a lubricator assembly the nozzle of which is reciprocated by a glide arm assembly which causes the nozzle to move a stroke on the order of 51/2-7" with a 3" actuator stroke. Larger presses having dies on the order of 14" or larger are better suited for accommodating a swing arm assembly the nozzle of which traverses a stroke of 10" or more with an actuator stroke of 3".
    Type: Grant
    Filed: May 31, 1996
    Date of Patent: July 1, 1997
    Assignee: Walker Forge Inc.
    Inventor: James R. Crum
  • Patent number: 4420962
    Abstract: A method of forging an arcuate shaped toothed segment which is adapted to be bolted to an endless track wheel for an endless track vehicle. The method includes the simultaneous finishing without the necessity of machining of various surfaces of the toothed segment, and which surfaces are arranged at right angles to one another. The method includes inserting a rough blank so that the surfaces to be finished are held in a two-piece die and at an inclined angle in respect to the direction of die movement. As a result, all of the surfaces of the segment are simultaneously and completely finished so as to need no further machining.
    Type: Grant
    Filed: September 2, 1981
    Date of Patent: December 20, 1983
    Assignee: Walker Forge, Inc.
    Inventor: Donald J. Peterson