Most of the patents prior to 1836 were lost in the Dec. 1836 fire. Only about 2,000 of the almost 10,000 documents were recovered. Little is known about this patent. There are no patent drawings available. This patent is in the database for reference only.

For an improvement in the apparatus for Distillation; Joseph T. Dwyer, Nashville, Tennessee. An alien, who has declared his intention to become a citizen of the United States; October 14.

On the 19th of November, 1833, a patent for a similar object was obtained by the same person. This was noticed at p. 264, vol. xiii, Although the mode now described may be said to be similar in principle with the former, there is considerable difference in the manner of carrying this principle into effect. A tube rises vertically from the top of a still head, and passes through the centre of the bottom of a round tub, formed like a washing tub, and within this is placed the apparatus alluded to. A flat, metallic drum, or hollow disk, stands a little above the bottom of the tub, and the vapour from the still passes into this drum, through the tube above mentioned. Parallel to this first drum, and at a convenient distance above it, within the tub, is placed a similar drum, or disk; and a number of tubes, bent so as to form a semicircle, connect these two drums together, by entering through their cylindrical peripheries. From the centre of the upper drum, or hollow disk, a tube rises, which conveys the vapour into an ordinary worm, or cooler. As a portion of the less volatile vapour will be condensed in the upper drum, a tube leads down from its lower side, into, or through, the first named drum, so as to re-convey it into the still. The claim is “the general arrangement herein stated.”

Journal of the Franklin Institute, Vol. 15, May 1835 pg. 322.

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