US Patent: 639,369
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| Wrench
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Patentee:
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| Joseph H. Flanigan (exact or similar names) - Town Creek, AL |
| Manufacturer: |
| Not known to have been produced |
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Patent Dates:
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| Applied: |
May 01, 1899 |
| Granted: |
Dec. 19, 1899 |
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Patent Pictures:
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Joseph H. Flanigan patent Dec. 19, 1899 |
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Stan Schulz
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Description: |
| Quick adjustment; a toothed "cam" in the movable jaw engages rack teeth on the shank, and has an additional wedging feature to additionally tighten the jaw's grip. A friction spring helps hold the adjustment. |
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