US Patent: 3,358,201
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| Apparatus for Compensating Machine Feed Driveservomechanisms
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Patentee:
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| Gordon H. Jones (exact or similar names) - Fond Du Lac, Fond Du Lac County, WI |
| Manufacturer: |
| Not known to have been produced |
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Patent Dates:
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| Applied: |
Jul. 27, 1966 |
| Granted: |
Dec. 12, 1967 |
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Joel Havens
"Vintage Machinery" entry for Giddings & Lewis Manufacturing Co.
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Description: |
| Continuation of application filed 14 Jan., 1963. This application 27 July, 1966.
Abstract:
A machine tool having a feed drive servomechanism including a servomotor for positioning a movable machine element. By means of a main feedback loop a position feedback signal is derived from a point closely coupled to the servomotor and, by means of a correction feedback loop, the position indicated by the feedback signal is compared with the actual position of the movable element. |
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