US Patent: 2,028,293
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| Undercutting Attachment for Lathes
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Patentees:
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| John J. O'Brien (exact or similar names) - South Bend, IN |
| Miles W. O'Brien (exact or similar names) - South Bend, IN |
| Manufacturer: |
| Not known to have been produced |
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Patent Dates:
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| Applied: |
Jan. 11, 1935 |
| Granted: |
Jan. 21, 1936 |
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Patent Pictures:
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Joel Havens
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Description: |
| George J. Oltsch - patent attorney
This invention relates to undercutting attachments for lathes, and particularly means for accurately undercutting laminations and the like of a cylindrical member mounted on a lathe, such as mica laminations of a motor commutator. |
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