US Patent: 396,017
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| Wrench
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Patentee:
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| Thomas Warren (exact or similar names) - Centralia, IL |
| Manufacturer: |
| Not known to have been produced |
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Patent Dates:
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| Applied: |
Jul. 31, 1888 |
| Granted: |
Jan. 08, 1889 |
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Patent Pictures:
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Thomas Warren patent January 8, 1889 |
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Stan Schulz
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Description: |
| The swinging brace provides the rough size adjustment; the final size adjustment is "self adjusting" as the pivot in the shank forces the sliding jaw toward the fixed jaw.
Notches in the shank and a sliding collar provide the "anchor" point for the swinging brace. |
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