US Patent: 520,094
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Adjustable Wrench
Improvement in Adjustable Spanners or Wrenches
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Patentee:
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| John Townsend Trench (exact or similar names) - Dublin, Ireland |
| Manufacturer: |
| Not known to have been produced |
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Patent Dates:
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| Applied: |
Dec. 04, 1893 |
| Granted: |
May 22, 1894 |
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Patent Pictures:
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John Townsend Trench patent May 22, 1894 |
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Stan Schulz
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Description: |
| The adjustment means is a cam-action lever handle with gripping teeth that mesh with rack teeth on the shank.
The specifications note the wrench had received British patent no. 16,729 issued Sept. 8, 1893. |
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