GB Patent: GB-188,901,609
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| Pipe Wrenches
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Patentees:
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| Daniel R. Porter (exact or similar names) - Chelsea, MA |
| Henry Harris Lake (exact or similar names) - London, England |
| Manufacturer: |
| Not known to have been produced |
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Patent Dates:
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| Granted: |
Jan. 29, 1889 |
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Patent Pictures:
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Daniel R. Porter patent registered Jan. 29, 1889 - edited from "Abridgments of Specifications" |
Espacenet patent
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Stan Schulz
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Description: |
| Quick adjust pipe wrench corresponding to Canadian patent CA-30,994. It includes a pivot in the movable jaw structure, which distinguishes these patents from Porter's earlier U.S. patent 389,899.
Following British patent options of the period, the patent is issued in the name of British patent agent H. H. Lake.
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 #1,609 of the year 1889. |
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