US Patent: 627,950
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| Wrench
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Patentee:
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| George E. Zeigler (exact or similar names) - Parnassus, PA |
| Manufacturer: |
| Not known to have been produced |
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Patent Dates:
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| Applied: |
Nov. 03, 1898 |
| Granted: |
Jun. 27, 1899 |
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Patent Pictures:
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George E. Zeigler patent June 27, 1899 |
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Stan Schulz
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Description: |
| The distinguishing details of the patent include: partial threads on the adjusting screw and movable jaw allow for quick adjustment; a spring at the base of the adjusting screw facilitates aligning the partial threads; the thumb levers on the adjusting screw also act as motion limits; a wedge portion on the adjusting screw provides firm adjustment. |
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