US Patent: 618,859
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| Wrench
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Patentee:
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| John Gardiner (exact or similar names) - Philadelphia, PA |
| Manufacturer: |
| Not known to have been produced |
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Patent Dates:
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| Applied: |
Apr. 27, 1898 |
| Granted: |
Feb. 07, 1899 |
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Patent Pictures:
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John Gardiner patent February 7, 1899 |
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Stan Schulz
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Description: |
| The specifications relate this patent to wrenches of the type corresponding to Milton Wenger's Dec. 1, 1896 patent no. 572,185.
The "improvement" in this patent is a spring-loaded pivot for the adjusting nut which keeps the opposite conical end of the adjusting nut pressed firmly against the conical socket in the opposite side of the frame holding the adjusting nut. |
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