Crank, Pitman, Lever, And Slide Patents (Class 74/40)
  • Patent number: 3941240
    Abstract: Apparatus for driving an automatic workpiece conveyor in a press train which includes a plurality of linkage members articulated to one another to drivingly interconnect a drive element of a press with a workpiece conveyor. The linkage members are interconnected and configured so as to assure movement of the workpiece conveyor between two end positions, with a predetermined stopping interval at the end position, with a continuously moving press drive element. These linkage members include a coupling point interconnecting two of the members which is constrained to move in a predetermined path including two arcuate sections spaced from one another and having the same radius of curvature, which arcuate sections correspond to the end positions of the conveyor. A secondary linkage system is provided for operating a turning device for turning the workpieces when in the end positions.
    Type: Grant
    Filed: February 21, 1974
    Date of Patent: March 2, 1976
    Assignee: L. Schuler GmbH
    Inventor: Otto Rasenberger