GB Patent: GB-190,226,218
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| New and Useful Adjustable Screw-Key
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Patentee:
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| Harry Scheffer (exact or similar names) - Aix-La-Chapelle, Rhenish Prussia Germany |
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Patent Dates:
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| Applied: |
Nov. 28, 1902 |
| Granted: |
Sep. 24, 1903 |
| Antedated: |
Nov. 28, 1902 |
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Patent Pictures:
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Harry Scheffer patent Nov. 28, 1902 - edited from Espacenet |
Espacenet patent
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Stan Schulz
GB-190226218 in ESPACENET
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Description: |
| Self-adjusting wrench design which also was patented in the U.S. (pat. no. 741,841) and elsewhere (see Espacenet). A tension spring working in concert with a cam face on the main handle closes the jaws. The side links between the swinging handle and movable jaw open the jaws.
A known example with "D. R. PATENT" the only visible marking was found in Britain; a write-up in the April 15 1904 Zeitschrift für Werkzeugmaschinen und Werkzeuge names the manufacturer as Gesellschaft für Werkzeug-Industrie G.m.b.H. (Remscheid-Haddenbach, Germany), and notes German patent DE-149630.
Note: British patents (through 1915) 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 #26218 of the year 1902. |
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