US Patent: 451,833
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Adjustable Wrench
Improved Spanner
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Patentee:
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| Jacob Mueller (exact or similar names) - Burbach, Germany |
| Manufacturer: |
| Not known to have been produced |
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Patent Dates:
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| Applied: |
Jun. 26, 1890 |
| Granted: |
May 05, 1891 |
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Patent Pictures:
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Jacob Mueller patent May 5, 1891 |
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Stan Schulz
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Description: |
| The movable jaw has a central opening with "teeth" at the outer ends. The main shank has teeth on opposite edges. In use, the movable jaw rocks so that diagonally opposite teeth on the jaw engage the teeth on the shank to hold the adjustment. |
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