US Patent: 2,867,556
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| Method of Flame Hardening
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Patentee:
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| George E. Tegen (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: |
Sep. 18, 1953 |
| Granted: |
Jan. 06, 1959 |
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Joel Havens
"Vintage Machinery" entry for Giddings & Lewis Manufacturing Co.
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Description: |
| The present application is a continuation-in-part of my earlier application, filed in the United States Patent Office on 30 September, 1950, now abandoned.
Claim:
This invention relates to the flame hardening of relatively long bars of ferrous metal such as cast iron, such bars having lengths many times greater than their cross-sectional dimensions. The greater aim of the invention is to provide a novel method of flame hardening such bars which is simple and inexpensive and which virtually avoids distortion in the final hardened bar. |
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