US Patent: 168,406
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| Ratchet-Wrench
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Patentee:
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| Franklin S. Ober (exact or similar names) - Washington, DC |
| Manufacturer: |
| Not known to have been produced |
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Patent Dates:
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| Applied: |
Aug. 04, 1875 |
| Granted: |
Oct. 05, 1875 |
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Patent Pictures:
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Franklin S. Ober Pat. October 5, 1875 |
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Stan Schulz
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Description: |
| The patent is for the adjustable "socket" within a ratchet head. The jaw mechanism employs springs and pawls to close the jaws upon a nut or bolt to be turned. The closing action is driven by moving the handle; the pawl mechanism can be disengaged to release the grip or expand the jaw opening. |
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