US Patent: 489,803
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| Pipe Wrench
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Patentees:
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| Richard S. Gillespie (exact or similar names) - New York, NY |
| Harry James (exact or similar names) - New York, NY |
| Manufacturer: |
| Not known to have been produced |
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Patent Dates:
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| Applied: |
Mar. 03, 1892 |
| Granted: |
Jan. 10, 1893 |
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Patent Pictures:
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Richard S. Gillespie and Harry James patent January 10, 1893 |
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Stan Schulz
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Description: |
| A further modification of a design where a set screw type adjustment pushes a handle into engagement with the movable jaw. The modifications in this patent facilitate handle movement compared to the earlier versions.
Patent nos. 460,008, 461,750, and 481,110 represent earlier stages in the evolution. |
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