US Patent: RE1,705
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Improvement in the Mode of Casting Plow-Plates
Making Plow Plates
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Patentee:
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| F. F. Smith (exact or similar names) - Collinsville, CT |
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Patent Dates:
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| Granted: |
Jun. 21, 1864 |
| Reissue Information: |
| Reissue of 30,691 (Nov. 20, 1860) |
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Patent Pictures:
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F. F. Smith reissue patent June 21, 1864 |
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Stan Schulz
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Description: |
| Reissue of "DIVISION A" of patent no. 30,691. The specifications note the technical challenges of casting steel plow parts in cast iron molds and the advantages of plow parts made of cast steel over parts made of steel plates.
The claim is for the process of removing the cast parts from the molds while hot before shrinkage cracks can begin to form.
The drawings are the same ones used for parallel patent RE1,706. |
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