US Patent: 13,617
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| Screw-Wrench
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Patentee:
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| Joseph Hyde (exact or similar names) - New York, NY |
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Patent Dates:
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| Granted: |
Oct. 02, 1855 |
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Patent Pictures:
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Joseph Hyde patent Oct. 2, 1855 |
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Stan Schulz
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Description: |
| The face of the wrench bar is threaded to engage threads on a nut in the adjustable jaw. The adjusting nut rides on an oval pin with a second adjusting knob, to throw the adjusting nut into or out of engagement with the teeth on the bar. This enables the wrench to operate with a quick and screw-adjust.
A GRAY BROTHERS (N.Y.) 1857 / 1858 listing shows a HYDE's PATENT GRIPPING WRENCH that incorporates features of this patent and Hyde's March 13, 1855 patent (no. 12,510).
A corroded example retrieved from a Civil War era shipwreck shows the "grain" of the upset wrought iron forming the head. |
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