GB Patent: GB-384,468
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| A New and Improved Rapidly Adjusting Spanner To Take Nuts of Different Sizes
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Patentee:
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| Arthur Pearson Ibbott (exact or similar names) - Oxhey, Watford, Hertfordshire, Great Britain |
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Patent Dates:
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| Applied: |
Jan. 26, 1932 |
| Granted: |
Dec. 08, 1932 |
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Patent Pictures:
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A. P. Ibbott patent applied January 26, 1932 |
Espacenet patent
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Stan Schulz
GB-384468 in ESPACENET
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Description: |
| A pivoted cam with spiral groove or edge provides adjustment for the movable jaw. The principle is shown as applied to a variety of wrench forms.
An adjustable wrench marked "BURSTON / BRITISH PATENT 384468 - 26-1-32 / CHAS. RICHARDS & SONS LTD - DARLASTON, ENGLAND" embodies this patent. Corresponding U.S. patent 2,053,033 was granted in 1936.
The patent appears to be an example of independent invention of using a "spiral cam" for wrench adjustment, as the idea appears in U.S. 1903 patent 734,329, which is not known to have been produced. |
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