US Patent: 44,006
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Steam-Boiler Indicator
Improvement in Steam-Boiler Whistles
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Patentees:
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| Levi E. Lincoln (exact or similar names) - Lowell, MA |
| Elizabeth K. Lincoln (exact or similar names) - Lowell, MA |
| Manufacturer: |
| Not known to have been produced |
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Patent Dates:
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| Granted: |
Aug. 30, 1864 |
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Patent Pictures:
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Levi E. Lincoln patent August 30, 1864 |
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Stan Schulz
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Description: |
| The patent is for a whistle which self-adjusts to steam pressure. The auxiliary wrench is described in the specifications and shown in the drawings. |
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