GB Patent: GB-189,320,009
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| Improvement in Spanners or Wrenches
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Patentee:
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| Joseph Walker (exact or similar names) - Birmingham, England |
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Patent Dates:
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| Applied: |
Oct. 24, 1893 |
| Granted: |
Aug. 04, 1894 |
| Antedated: |
Oct. 24, 1893 |
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Patent Pictures:
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British patent 20009 of 1893 - edited composite image |
Espacenet patent
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Stan Schulz
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Description: |
| A pivoted slotted cam and sliding block are the adjusting means for this adjustable "box end" wrench. Ron Geesin's THE ADJUSTABLE SPANNER notes the tool produced was a pocket wrench for bicyclists, called the CAMspanner.
A limited edition miniature of this wrench was produced in the U.S. for members of an antique tool collectors' club. |
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