Patents Assigned to Schrader Machine & Tool, Inc.
  • Tool wear compensator
    Patent number: 4605346
    Abstract: The invention pertains to a fine adjustment for the tool of a machine tool. The tool carrier is displaceable by forces generated by the rotation of a shaft through an eccentric wherein the shaft is indexed by a reversible electric stepping motor. Tool adjustments of thousandths of an inch are accurately and consistently achievable.
    Type: Grant
    Filed: June 4, 1984
    Date of Patent: August 12, 1986
    Assignee: Schrader Machine & Tool, Inc.
    Inventor: David J. Trevarrow
  • Machine tool adjustment
    Patent number: 4561815
    Abstract: The invention pertains to an adjustment for machine tool components, such as a head or slide, wherein minute dimensional variations are achieved by the utilization of a wedge acting against a spring biasing force. The wedge is longitudinally displaced by incremental motor means and the biasing force opposing the wedge actuated forces are produced by compression spring elements.
    Type: Grant
    Filed: April 25, 1984
    Date of Patent: December 31, 1985
    Assignee: Schrader Machine & Tool, Inc.
    Inventor: David J. Trevarrow