US Patent: 61,929
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| improvement in Wrenches
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Patentee:
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| Timothy Earle (exact or similar names) - Valley Falls, Smithfield, RI |
| Manufacturer: |
| Not known to have been produced |
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Patent Dates:
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| Granted: |
Feb. 12, 1867 |
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Patent Pictures:
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Timothy Earle Pat. Feb. 12, 1867 |
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Stan Schulz
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Description: |
| The movable jaw has fine teeth or a roughend surface on its inside surface. A spring steel insert in the shank has a corresponding toothed end or roughened segment. A thumb screw tapped through the shank can be tightened to force the teeth or rough surfaces together to hold the adjustment. |
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