US Patent: 203,774
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| Wrench Attachment
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Patentee:
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| Henry Franklin Read (exact or similar names) - Brooklyn, NY |
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Patent Dates:
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| Applied: |
Feb. 16, 1878 |
| Granted: |
May 14, 1878 |
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Patent Pictures:
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Henry F. Read Pat. May 14, 1878 |
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Stan Schulz
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Description: |
| The attachment is a pair of detachable jaw components designed to temporarily convert a nut wrench to a pipe wrench or pipe cutter. The wrench shown in the illustration is Read's May 13, 1873 patent (no. 138,932). In the specifications, Read discusses modifying the adjusting knurl of a nut wrench to accept a "claw wrench" to provide extra force to make such a jaw grip or cut pipe. The illustration for Read's May 24, 1881 patent (no. 241,881) shows this adaptation.
A Nov. 15, 1879 AMERICAN MACHINIST article describes the wrench with pipe gripping and pipe cutter attachments in terms that imply Read was producing them. |
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