US Patent: AI5
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| Worm for Stills
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Patentee:
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| John G. Webb (exact or similar names) - Albany, Albany County, NY |
| Manufacturer: |
| Not known to have been produced |
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Patent Dates:
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| Granted: |
Apr. 07, 1838 |
| Reissue Information: |
| Reissue of 8,016X (Feb. 11, 1834) |
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Patent Pictures:
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1 | 2
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Joel Havens
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Description: |
| The original patent was lost in the December 1836 Patent Office fire and was not restored.
In the United States, the term "Additional Improvement Patents" refers to a specific, historical category of patents used between 1837 and 1861. Under the Patent Act of 1836, an inventor could add improvements to their already existing patent rather than filing an entirely new application.
AI (Additional Improvements) patents were issued between 1836 and 1861 and only 318 were ever issued.
This patent is an improvement of patent #8,016X.
Claim:
The manner of constructing the worms herein set forth by making separate flattened tubes, placing such tubes vertically and in an inclined position for the condensed water and oils to lodge in, and at all the lowest points connecting-tubes placed to return the condensed fluid to the boiler.
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