US Patent: 41,747
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| Improved Screw-Wrench
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Patentee:
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| George C. Taft (exact or similar names) - Worcester, MA |
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Patent Dates:
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| Granted: |
Feb. 23, 1864 |
| Reissue Information: |
| Reissued as RE3,483 (Jun. 01, 1869) |
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Patent Pictures:
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George C. Taft patent Feb. 23, 1864 |
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Stan Schulz
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Description: |
| The patent is for a "rosette" design to transfer strain from the adjusting screw to the shank of a monkey wrench. It is a refinement of the design in Taft's Nov. 10, 1863 patent 40,590. A known example incorporating these patents is marked "CHAMPION MOWER AND REAPER WRENCH // PAT ??? 1863, FEB. 23, 1864" (The November 1863 date is partially obliterated on this example.) Another known example is marked "DODGE & WELLINGTON WORCESTER // PAT"D NOV. 10, 1863 FEB. 23, 1864"
These Taft patents figured prominently in various phases of the Collins / Coes patent infringement lawsuits, and were used for the L. Coes & Co. MECHANICS WRENCH in the 1870s.
A bit of trivia: The "signature" on the drawing is entirely in the handwriting style of Thomas H. Dodge or someone in his employ -- compare a "typical" Taft signature (like the drawing for patent 40,590). |
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