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Program modification registers for numerically controlled machine tools
T977007 Program modification registers for numerically controlled machine tools
Patent Drawings:Drawing: T977007-2    Drawing: T977007-3    
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Inventor: Selander
Date Issued: December 5, 1978
Application: 05/874,340
Filed: February 1, 1978
Inventors: Selander; Douglas S. (New Berlin, WI)
Assignee: Kearney & Trecker Corporation (West Allis, WI)
Primary Examiner:
Assistant Examiner:
Attorney Or Agent:
U.S. Class: 700/181
Field Of Search:
International Class: G05B 19/408
U.S Patent Documents:
Foreign Patent Documents:
Other References:

Abstract: by utilizing a set of program modification registers, a numerically controlled machining program can be written with loops and branches like a computer program. The order and action of the program blocks can be made dependent upon data contained in the program modification registers. The register data may be altered by the program as it runs or by external inputs to the control circuits.
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