US Patent: 68,545
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Plow-Clevis
Improvement in Plough-Clevis
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Patentees:
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| Harrison W. Austin (exact or similar names) - Kalamazoo, MI |
| William Schaw (exact or similar names) - Kalamazoo, MI |
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Patent Dates:
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| Granted: |
Sep. 03, 1867 |
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Patent Pictures:
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Patent 68,545 - edited image |
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Stan Schulz
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Description: |
| The issue this design addresses is equalizing the resistance faced by the center horse in a three-horse abreast hitch. The piece is set vertically, with the middle horse hooked to the top, and the evener for the other two horses attached to the bottom.
The patent claims the related structure of the vertical piece, the single tree for the middle horse, and the double tree for the other two horses. 1868 agricultural trade journal ads for the Three Horse Clevis Mfg. Co., Kalamazoo, MI. show this design in use. |
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