US Patent: 379,340
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| Power-hammer
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Patentee:
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| Henry St. Lawrence (exact or similar names) - Northampton, MA |
| Manufacturer: |
| Not known to have been produced |
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Patent Dates:
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| Applied: |
May 28, 1887 |
| Granted: |
Mar. 13, 1888 |
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Jeff Joslin
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Description: |
| "This invention relates to a novel form of power-hammer, the principal objects of the invention being to relieve the main supporting-frame from the shock incident to the fall of the hammer stock and to provide for a yielding connection between the hammer-stock and its crank-yoke." |
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