US Patent: 591,893
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| Wrench
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Patentee:
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| Edwin Blake Smith (exact or similar names) - Manchester, England |
| Manufacturer: |
| Not known to have been produced |
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Patent Dates:
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| Applied: |
Feb. 10, 1897 |
| Granted: |
Oct. 19, 1897 |
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Patent Pictures:
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Edwin Blake Smith patent October 19, 1897 |
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Stan Schulz
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Description: |
| Combination quick and screw-adjust nut wrench. The hole through the adjusting nut is oval, with threads only on the sides. The shank of the movable jaw is flat, with threads on the edges. A quarter turn of the adjusting nut engages or disengages the threads.
The patent includes the formation of the fixed jaw and handle of side plates and spacers. |
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