AN IMPROVED BATH FOR HEATING AND DISTILLING
Year: 1853

page_text: LETTERS PATENT to Frederick Albert Gatty, of Accrington, in the
County of Lancaster, Manufacturing Chemist, for the Invention
of "AN IMPROVED BATH FOR HEATING AND DISTILLING."
Sealed the 27th February 1854, and dated the 2nd November 1853.
PROVISIONAL SPECIFICATION left by the said Frederick Albert
Gatty at the Office of the Commissioners of Patents, with his
Petition, on the 2nd November 1853.
I, FREDERICK ALBERT GATTY, of Accrington, in the County of Lan-
caster, Manufacturing Chemist, do hereby declare the nature of the.
said Invention for "AN IMPROVED BATH FOR HEATING AND DISTILLING" to
be as follows:-
In preparing baths for heating and distilling it has heretofore been
customary to employ steam, water, oil, or other fluids, as a medium for
transmitting heat from the vessel containing the bath to the vessel
immersed in the bath; now my improvements consist in applying
a refuse matter obtained in the manufacture of gas, called "gas tar,"
as a bath.
.

page_text: SPECIFICATION in pursuance of the conditions of the Letters Patent
filed by the said Frederick Albert Gatty in the Great Scal Patent
Office on the 28th April 1854.
TO ALL TO WHOM THESE PRESENTS SHALL COME, I,
FREDERICK ALBERT GATTY, of Accrington, in the County of Lancaster,
Manufacturing Chemist, send greeting.
WHEREAS Her most Excellent Majesty Queen Victoria, by Her
Letters Patent, bearing date the Second day of November, in the year
of our Lord One thousand eight hundred and fifty-three, in the seven-
teenth year of Her reign, did, for Herself, Her heirs and successors,
give and grant unto me, the said Frederick Albert Gatty, Her special
license that I, the said Frederick Albert Gatty, my executors, admi-
nistrators, and assigns, or such others as I, the said Frederick Albert
Gatty, my executors, administrators, and assigns, should at any time
agree with, and no others,. from time to time and at all times there-
after during the term therein expressed, should and lawfully might
make, use, exercise, and vend, within the United Kingdom of Great
Britain and Ireland, the Channel Islands, and Isle of Man, an Iuven-
tion for AN IMPROVED BATH FOR HEATING AND DISTILLING," upon the
condition (amongst others) that I, the said Frederick Albert Gatty, by
an instrument in writing under my hand and seal, should particularly
describe and ascertain the nature of the said Invention, and in what
manner the same was to be performed, and cause the same to be filed
in the Great Seal Patent Office within six calendar months next and
immediately after the date of the said Letters Patent.
NOW KNOW YE, that I, the said Frederick Albert Gatty, do hereby
declare the nature of my said Invention, and in what manner the
same is to be performed, to be particularly described and ascertained
in and by the following statement, that is to say:
My Invention consists in applying the refuse matter called "gas tar,"
which is obtained in the manufacture of gas, as a bath for heating and
distilling purposes.
Having thus stated the nature of my Invention, I will proceed to
describe the manner of performing the same. "

page_text: In order to render the gas tar capable of resisting a high temperature
without evaporating, I drive off a portion of or all of its volatile oils
by distillation previous to using it. The gas tar thus prepared, or in
some cases it may be used without being previously prepared, answers
the purpose of steam, water, oil, or other fluids, which have hitherto
been used as media for transmitting heat from the bath to the vessel
immersed in the bath.
Having thus described the nature of my Invention, and the manner
of performing the same, I would have it understood that I claim the
use of gas tar, whether in its natural state or prepared by distillation or
evaporation, as a bath for heating and distilling.
In witness whereof, I, the said Frederick Albert Gatty, have
hereunto set my hand and seal, this Twenty-seventh day of
April, One thousand eight hundred and fifty-four.
Signed, sealed, and delivered by the
within-named Frederick Albert
Gatty in the presence of
H. B. BARLOW,
Patent Agent,
Manchester.
F. A. GATTY. (L.S.)