GB Patent: GB-186,300,945
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| Spanners and Wrenches; Combination Tools
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Patentees:
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| William Edward Newton (exact or similar names) - London, England |
| L Schwartzkopff (exact or similar names) - Berlin, Germany |
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Patent Dates:
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| Granted: |
Apr. 21, 1863 |
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Patent Pictures:
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L. Schwartzkopff patent registered April 21, 1863 - edited from "Abridgments of Specifications" |
Espacenet patent
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Stan Schulz
SCHWARTZKOPFF'S SPANNER (edited ) - FLICKR
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Description: |
| Self-adjusting wrench design; corresponding U.S. patent 42,903 was granted May 24, 1864. W. E. Newton was a British patent agent. German technical journals of the period discuss the wrench and note it was produced in three sizes in Germany. A known German example is marked "PATENT L. SCHWARTZKOPFF BERLIN"
Produced by the Argus Works of Sheffield as SCHWARTZKOPF'S ADJUSTING SPANNER. A modification of the handle structure to allow locking the adjustment was registered Feb. 19, 1885.
Note: Early British patents (pre 1916) were numbered by the year and started at patent #1 at the start of each year in January. The patent # used in DATAMP represents the year of registration and the patent #, with "leading zeros" interposed to make the number total nine digits. This patent is #945 of the year 1863. |
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