US Patent: 76,579
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Improvement in Hose-Coupling Wrench
Improved Signal Hose-Wrench for Coupling and Uncoupling Engine-Hose
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Patentee:
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| Albert F. Allen (exact or similar names) - Providence, RI |
| Manufacturer: |
| Not known to have been produced |
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Patent Dates:
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| Granted: |
Apr. 14, 1868 |
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Patent Pictures:
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Albert F. Allen Pat. April 14, 1868 |
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Stan Schulz
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Description: |
| The wrench is designed to fit A. F. Allen's hose coupling patented Sept. 3, 1867. The wrench has "horns" extending in both directions from the lug socket so the coupling can be turned in either direction without removing and resetting the wrench. Rapid coupling and uncoupling would generate water surges which could be timed to form signals. |
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