US Patent: 234,091
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| Wrench
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Patentee:
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| Henry Artemas Thompson (exact or similar names) - Farmington, ME |
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Patent Dates:
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| Applied: |
Aug. 02, 1880 |
| Granted: |
Nov. 02, 1880 |
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Patent Pictures:
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Henry A. Thompson patent Nov. 2, 1880 |
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Stan Schulz
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Description: |
| The wrench has a long sliding jaw, and a unique adjusting nut "which may be rapidly twirled by striking the respective arms successively.." Some wrenches are found with a single adjustable socket as shown in this patent and Canadian patent CA-13,865; most correspond to Thompson's Oct. 16, 1883 patent (no. 286,653).
John Hill's May 2, 1899 patent (no. 624,211) is a similar design. |
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