US Patent: 138,409
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| Improvement in apparatus for carbureting air
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Patentees:
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| Ellis Doty (exact or similar names) - Janesville, WI |
| Thorwaldsen Judd (exact or similar names) - Janesville, WI |
| Manufacturer: |
| Not known to have been produced |
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Patent Dates:
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| Applied: |
Jan. 14, 1871 |
| Granted: |
Apr. 29, 1873 |
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Jeff Joslin
Vintage Machinery entry for Doty Mfg. Co.
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Description: |
| "Our invention relates to apparatus for carbureting atmospheric air for producing illuminating gas..."From the 1879 book, The History of Rock County, Wisconsin, Page 704, in a biography of Ellis Doty. "During the year 1870 he associated himself with Thor Judd in the manufacture of a gas machine, which had been rendered valuable by improvements made upon it by Mr. Doty. This partnership was continued less than a year, Mr. Judd assuming the entire interest." Ellis was co-owner of the Doty Mfg. Co. |
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