US Patent: 455,300
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| Ratchet Wrench
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Patentee:
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| John Berner (exact or similar names) - Philadelphia, PA |
| Manufacturer: |
| Not known to have been produced |
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Patent Dates:
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| Applied: |
Oct. 23, 1890 |
| Granted: |
Jul. 07, 1891 |
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Patent Pictures:
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John Berner patent July 7, 1891 |
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Stan Schulz
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Description: |
| The ratchet head's outer edge is thicker, forming a dove-tail shape corresponding to the dove-tail grooves in the two arms of the handle. A spring-loaded arc-shaped pawl provides the ratchet action. |
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