US Patent: 556,049
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| Wrench
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Patentee:
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| James Carloss Gregory (exact or similar names) - Pleasant Hill, NE |
| Manufacturer: |
| Not known to have been produced |
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Patent Dates:
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| Applied: |
May 24, 1895 |
| Granted: |
Mar. 10, 1896 |
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Patent Pictures:
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James Carloss Gregory patent March 10, 1896 |
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Stan Schulz
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Description: |
| The adjustment means is a wedge key acting on rack teeth on the shank of the movable jaw. The wedge key is attached to a side lever which is pulled into its socket by a leaf tension spring.
The shape of the jaw is not included in the patent; the drawings show pipe gripping teeth. |
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