US Patent: 155,051
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Improvement in testing-machines
Torsion measuring apparatus
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Patentee:
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| Robert H. Thurston (exact or similar names) - Hoboken, NJ |
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Patent Dates:
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| Applied: |
Dec. 22, 1873 |
| Granted: |
Sep. 15, 1874 |
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Jeff Joslin
Vintage Machinery entry for Pratt & Whitney Co.
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Description: |
| The inventor was professor of mechanical engineering in the Stevens Institute of Technology in Hoboken. An 1893 catalog from Pratt & Whitney shows an "Improved Autographic Torsion Testing Machine. Prof. R. H. Thurston's patents." The illustrated machine is labeled as made by Pratt & Whitney. The only other R. H. Thurston patent wee have found is patent 230,158, for a lubricant testing machine, which was also manufactured by Pratt & Whitney. |
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