US Patent: 2,129,049
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| Means for regulating the rate of feed of a milling machine or other machine tool
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Patentee:
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| John E. Doran (exact or similar names) - Cincinnati, OH |
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Patent Dates:
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| Applied: |
Feb. 15, 1935 |
| Granted: |
Sep. 06, 1938 |
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Jeff Joslin
Vintage Machinery entry for G. A. Gray Co.
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Description: |
| "The invention relates to a new and useful means and method for regulating the rate of feed of a milling machine or other machine tool whereby the rate of feed is so regulated as to maintain a nearly constant power input to the driving motor, which, in the case of a milling machine maintains a nearly constant torque on the milling cutter..." |
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