US Patent: RE28,761
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| Manual Control System for Numerically Controlled Machine
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Patentees:
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| Thomas E. Hentz (exact or similar names) - Cincinnati, OH |
| Robert K. Burroughs (exact or similar names) - Batavia, OH |
| Manufacturer: |
| Not known to have been produced |
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Patent Dates:
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| Applied: |
Oct. 29, 1974 |
| Granted: |
Apr. 06, 1976 |
| Reissue Information: |
| Reissue of 3,766,460 (Oct. 16, 1973) |
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Joel Havens
"Vintage Machinery" entry for R. K. Leblond Machine Tool Co.
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Description: |
| Abstract
A manual control system including a powered feed for a numerically controlled machine tool. The system includes a manually operable differential resolver located in the position feedback loop of the servo control system for each slide and a variable speed motor for driving that differential resolver at a controlled rate so as to effect controlled feeding movement of the slides independent of the numerical control unit.
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