US Patent: 79,306
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| Wrench
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| Manufacturer: |
| Not known to have been produced |
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Patent Dates:
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| Applied: |
Feb. 07, 1868 |
| Granted: |
Jun. 30, 1868 |
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Patent Pictures:
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Bradshaw & Lyon Pat. June 30, 1868 |
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Stan Schulz
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Description: |
| A spring loaded jaw with the portion adjacent to the shank cut away functions as a ratchet nut wrench. The patent also shows the same spring feature employed on a hook jaw pipe wrench and on an angle-jaw wrench.
An article on pg. 321 of the November 18, 1868 SCIENTIFIC AMERICAN touts the invention's advantages, and solicits proposals for manufacture. |
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