IMPROVEMENTS IN OBTAINING MOTIVE POWER
Year: 1870

page_text: LETTERS PATENT to John Heaton, of Eastwood, in the County of
Nottingham, Engineer, for the Invention of "IMPROVEMENTS IN
OBTAINING MOTIVE POWER."
Scaled the 31st December 1870, and dated the 5th July 1870.
PROVISIONAL SPECIFICATION left by the said John Heaton at the
Office of the Commissioners of Patents, with his Petition, on the
5th July 1870.
I, JOHN HEATON, of Eastwood, in the County of Nottingham, Engineer,
do hereby declare the nature of the said Invention for "IMPROVEMENTS IN
OBTAINING MOTIVE POWER," to be as follows:-
The Invention relates to employing carbonic acid gas in combination
with water for the supply of steam boilers to obtain an elastic fluid for
use as a motive power. For this purpose carbonic acid gas and water
from separate sources of supply are forced under pressure into a receiver,
where they combine and in which they may be heated. From this
receiver, by the force exerted in supplying them, the combined gas and
water are forced through other heating means, so as to raise their

page_text: temperature before they pass into the boiler for the purpose of more
complete conversion into elastic vapour to the desired pressure.
To insure the supply to the boiler I prefer that the pressure of supply
to the receiver be considerably above that required in the boiler, and
that compensating valves or other suitable compensating means be
applied in the passage to the boiler.
In some cases atmospheric air may also be forced under pressure with
the carbonic acid gas and water into the receiver for combined use in
the boiler.
SPECIFICATION in pursuance of the conditions of the Letters Patent,
filed by the said John Heaton in the Great Seal Patent Office on
the 4th January 1871.
TO ALL TO WHOM THESE PRESENTS SHALL COME, I, JOHN
HEATON, of Eastwood, in the County of Nottingham, Engineer, send
greeting.
WHEREAS Her most Excellent Majesty Queen Victoria, by Her
Letters Patent, bearing date the Fifth day of July, in the year of our
Lord One thousand eight hundred and seventy, in the thirty-fourth
year of Her reign, did, for Herself, Her heirs and successors, give and
grant unto me, the said John Heaton, Her special licence that I, the
said John Heaton, my executors, administrators, and assigns, or such
others as I, the said John Heaton, my executors, administrators, and
assigns, should at any time agree with, and no others, from time to
time and at all times thereafter 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 Invention for "IMPROVEMENTS IN OBTAINING MOTIVE
POWER," upon the condition (amongst others) that I, the said John
Heaton, my executors or administrators, by an instrument in writing
under my, or their, or one of their hands and seals, 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.

page_text: NOW KNOW YE, that I, the said John Heaton, do hereby declare
the nature of the said Invention, and in what manner the same is to be
performed, to be particularly described and ascertained in and by the
following statement thereof, that is to say :-
The Invention relates to employing carbonic acid gas in combination
with water for the supply of steam boilers to obtain an elastic fluid for
use as a motive power. For this purpose carbonic acid gas and water,
say, two volumes of carbonic acid gas to one of water, from separate
sources of supply are forced under pressure into a receiver, where they
combine and in which they may be heated. From this receiver, the
pressure of which is higher than the working pressure of the boiler,
the combined gas and water are forced through coils of heated piping
or other heating means, so as to raise their temperature before they
pass into the boiler for the purpose of their more complete conversion
into an elastic vapour, to the desired pressure.
To insure the supply to the boiler I prefer that the pressure to the
receiver bc (say, by preference, at least) 15 per cent. above that required
in the boiler, and that compensating valves or other suitable com-
pensating means be applied in the passage between the receiver and the
boiler.
In some cases atmospheric air may also be forced under pressure with
the carbonic acid gas and water into the receiver for combined use in
the boiler.
Having thus described my Invention, I would have it understood that
I do not confine myself to the proportions stated, but what I claim is,
the employing carbonic acid gas in combination with water for the
supply of steam boilers, so as thereby to obtain an elastic fluid for use
as a motive power, in manner substantially as described.
In witness whereof, I, the said John Heaton, have hereunto set
my hand and seal, this Thirty-first day of December, in the year
of our Lord One thousand eight hundred and seventy.
JOHN HEATON