US Patent: 483,803
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Wrench
Improvements in Ratchet-Wrenches
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| Manufacturer: |
| Not known to have been produced |
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Patent Dates:
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| Applied: |
May 28, 1892 |
| Granted: |
Oct. 04, 1892 |
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Patent Pictures:
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Lawrence I. Folk, John W. Nairn and Louis H. Dempsey patent October 4, 1892 |
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Stan Schulz
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Description: |
| The size adjustment is held by a sliding wedge. The jaw frame on which this wedge-adjust operates can be closed by a toggle-link lever and is held open by a spring. |
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