US Patent: 152,872
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| Improvement in Devices for Hammering Saws
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Patentee:
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| Charles T. Shoemaker (exact or similar names) - Philadelphia, PA |
| USPTO Classifications: |
| 76/26 |
| Manufacturer: |
| Not known to have been produced |
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Patent Dates:
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| Applied: |
Jun. 20, 1874 |
| Granted: |
Jul. 07, 1874 |
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Patent Pictures:
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1 | 2
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Russ Allen.
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Description: |
| Use of a power hammer to tension blade instead of using skilled labor. Power hammering ensures that the blow struck always coincides with the face of the anvil. |
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