US Patent: 1,012,037
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| Wrench
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Patentee:
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| John H. Vinton (exact or similar names) - Jamaica Plain, MA |
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Patent Dates:
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| Applied: |
Aug. 10, 1911 |
| Granted: |
Dec. 19, 1911 |
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Patent Pictures:
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John H. Vinton Pat. December 19, 1911 |
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Stan Schulz
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Description: |
| This patent date appears on TRIMO produced wrenches over a long time span, reflecting this patent and parallel patent 1,012,036. The main point of the patent is the "flat washer" style nut guard that extends beyond the circumference of the adjusting nut to prevent the adjustment being altered by the adjusting nut rubbing against adjacent surfaces.
Patent no. 1,613,229 is a further refinement of the "flat washer" nut guard; no. 1,430,955 is a similar refinement of the "U" shaped nut guard. |
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