US Patent: 440,435
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| Wrench
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Patentees:
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| Augustus J. O'Neill (exact or similar names) - Butte City, MT |
| Henry Reinhart (exact or similar names) - Butte City, MT |
| Manufacturer: |
| Not known to have been produced |
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Patent Dates:
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| Applied: |
May 28, 1890 |
| Granted: |
Nov. 11, 1890 |
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Patent Pictures:
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Augustus J. O*Neill and Henry Reinhart patent November 11, 1890 |
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Stan Schulz
O*Neill & Reinhart Improved Wrench ( edited ) - FLICKR
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Description: |
| The adjustable jaws are driven by a worm gear and rack and pinion gear mechanism. The handle can extend and at the end of its travel the outer portion of the handle can be hinged out at right angles to provide extra leverage.
Dec. 6, 1890 SCIENTIFIC AMERICAN has a writeup for the wrench. |
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