US Patent: 376,792
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| Clevis for Plows
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Patentees:
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| Lewis A. Weyburn (exact or similar names) - Rockford, Winnebago County, IL |
| George S. Briggs (exact or similar names) - Rockford, Winnebago County, IL |
| Manufacturer: |
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Weyburn Co. - Rockford, Winnebago County, IL |
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Patent Dates:
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| Applied: |
May 18, 1887 |
| Granted: |
Jan. 24, 1888 |
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Joel Havens
"Vintage Machinery" entry for Weyburn Co.
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Description: |
| Abstract:
The object of this invention is to produce a combination-clevis, and to attach the same to a plow-beam in such a manner that a doubletree and singletrees connected therewith and supported thereby will not drop down upon the heels of draft-animals hitched thereto whenever said animals turn at an angle with the plow-beam or materially lessen the draft thereon.
Claim:
The combination, with the series of devises herein shown and described, of a pair of draft-plates connected therewith by means of a pin, C2, and a double hook, B, for maintaining said series of devises in a substantially horizontal position, and thereby preventing a doubletree, G, and singletrees connected therewith from coming in contact with the heels of draft-animals. |
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