IMPROVEMENTS IN GAS STOVES FOR HEATING AND VENTILATING
Year: 1868

page_text: LETTERS PATENT to Richard George, of Kilburn, in the County of
Middlesex, for the Invention of "IMPROVEMENTS IN GAS STOVES FOR
HEATING AND VENTILATING."
Sealed the 7th August 1868, and dated the 13th. February 1868.
PROVISIONAL SPECIFICATION left by the said Richard George at
the Office of the Commissioners of Patents, with his Petition, on
13th February 1868.
I, RICHARD GEORGE, of Kilburn in the County of Middlesex, do
hereby declare the nature of the said Invention for "IMPROVEMENTS IN
GAS STOVES FOR HEATING AND VENTILATING," to be as follows:-
}
This Invention relates to improved arrangements in the mode of
admitting air to and in carryng off the products of combustion from
gas stoves, and also in the arrangement and construction of such stoves
for heating and ventilating apartments or buildings. For this purpose
I prefer to construct the chamber or body of a stove of thin sheet metal,
access being had to the burner or burners by means of the door which
can be closed so as to exclude the atmosphere from entering the stove

page_text: except through the air supply pipe. The air for supporting combustion
enters the lower part of the stove by means of a pipe in communication
with a chimney flue or pipe which is also, connected by a pipe with the
upper part of the stove to carry off the products of combustion. The
combined inlet and outlet pipe may be so arranged as to transmit heat
to the part of the apartment or building through which it is conducted.
Diaphragms are by preference arranged on the upper and lower ends
of the stove to distribute the air and products of combustion within
the chamber. The door or other part of the body of the stove may
be arranged to transmit light through glass or mica panels if desired.
In order to admit a current of warm air into.the apartment or building
for heating and ventilating I arrange a pipe in connection with the
outer atmosphere, such pipe passing into the lower end of the stove,
making a circuit round the upper part of the chamber, terminating with
an outlet opening into the apartment, as described, in the Provisional
Specification of an Invention for which a Patent is now being applied
for by me, 'dated October 11th, 1867, No. 2853.
SPECIFICATION in pursuance of the conditions of the Letters Patent,
filed by the said Richard George in the Great Seal Patent Office on
the 13th August 1868.
TO ALL TO WHOM THESE PRESENTS SHALL COME, I, RICHARD
GEORGE, of Kilburn, in the County of Middlesex, send greeting.
WHEREAS Her most Excellent Majesty Queen Victoria, by Her
Letters Patent, bearing date the Thirteenth day of February, in the year
of our Lord One thousand eight hundred and sixty-eight, in the
thirty-first year of Her reign, did, for Herself, Her heirs, and successors,
give and grant unto me, the said Richard George, Her special licence
that I, the said Richard George, my executors, administrators, and
assigns, or such others as I, the said Richard George, my executors,
administrators, and assigns, should at any time agree with, and
other, 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 GAS STOVES FOR HEATING AND VENTILATING," upon the condition

page_text: (amongst others) that I, the said Richard George, 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.
NOW KNOW YE, that I, the said Richard George, 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:-
This Invention relates to improved arrangements in the mode of
admitting air to and in carrying off the products of combustion from
gas stoves, and also in the arrangement and construction of such
stoves for heating and ventilating apartments or buildings. For this
purpose I prefer to construct the chamber or body of a stove of thin
sheet metal, access being had to the burner or burners by means of a
door which can be closed so as to exclude the atmosphere from entering
the stove except through the air supply pipe. The air for supporting
combustion enters the lower part of the stove by means of a pipe in
communication with a chimney, flue, or pipe, which is also connected
by a pipe with the upper part of the stove to carry off the products..of
combustion. The combined inlet and outlet pipe may be. so arranged
as to transmit heat to the part of the apartment or building through
which it is conducted. Diaphragms are by preference arranged in the
upper and lower ends of the stove to distribute the air and products of
combustion within the chamber. The door or other part of the body
of the stove may be arranged to transmit light through glass or mica
panels if desired. In order to admit a current of warm air into the
apartment or building for heating and ventilating I arrange a pipe in
communication with the outer atmosphere, such pipe passing into the
lower end of the stove and making a circuit around the upper part of
the chamber, terminating with an outlet opening into the compartment,
as described in the Specification of an Invention for which a Patent has
been granted to me, dated October 11th, 1867, No. 2853.
And in order that my present improvements may be fully under-
stood and readily carried into practice, I will proceed to describe the
Drawing hereunto annexed.

page_text: DESCRIPTION OF THE DRAWING.
Figure 1 shows a front view, Figure 2 a vertical section, Figure 3 a
plan, and Figure 4 a horizontal section of a portable gas stove or
warming and ventilating apparatus arranged according to my Invention,
in which the heat is obtained by the combustion of coal gas.
a is the outer chamber or case formed of thin sheet metal supported
upon the legs a', and 6 is the gas burner, which in this case is shewn to
be of the ordinary form and supplied with gas from the pipe 6¹; c is
a coil of pipe formed of thin sheet metal, entering at the lower and
passing out at the upper part of the chamber a, and through this pipe a
current of air is conducted from the exterior of the apartment or building
through the pipe or channel g. In the arrangement shown the air for
supporting combustion enters the chamber a by the inlet pipe h. from
the flue in communication with the chimney, and the products of
combustion pass out of the chamber a into the flue i by the outlet pipe k,
an upward and downward current being established in the flue; is
a door furnished with a panel of glass or mica which must be closed
I when the gas is burning so as to exclude the passage of air through
the opening of the door; m is a diaphragm for distributing the air for
supporting combustion, and n is another diaphragm for causing the
heated products to circulate with the chamber a. I will here remark
that the current of warm air introduced into an apartment through an
apparatus constructed as above described may, after warming and
ventilating the room in the which the apparatus is placed, be conducted
through suitable channels into other rooms or parts of a building for
"the purpose of warming and ventilating the same.
It will be understood from the foregoing description that the heat
from the heated products of combustion of gas burning within a
chamber a of thin sheet iron is transmitted through and radiated from
the sides of such chamber, a current of air passing at the same time from
the exterior to the interior of the apartment through a pipe c or other
contrivance of thin sheet iron so arranged within the chamber of the
stove as to warm the air passing through it. The chamber of the stove
is of large capacity in relation to the size of the burner so as to cause
the products of combustion to remain within the chamber a sufficient
length of time to part with a large proportion of their heat, only
sufficient air being supplied through the combined inlet and outlet flue i

page_text: to the burner to effect the combustion of the gas, the products of com-
bustion are caused to travel very slowly through the chamber to the
combined outlet and inlet pipe, the diaphragms m and n at the lower
and upper parts of the chamber assisting in producing a steady and
even flow of the air and products of combustion through the chamber a.
Having now described the nature of my Invention, and the means
which I employ for carrying the same into operation, I would have it
understood that I do not confine myself to the exact form or the details
shewn and described, which may be greatly varied without departing
from the nature of my Invention, which consists in the improved
arrangement and construction of gas stoves for warming and venti-
lating apartments and buildings, substantially as herein shewn and
described.
In witness whereof, I, the said Richard George, have hereunto set
my hand and seal, this Thirteenth day of August, in the year
descri
In witness whereof, I, the said Richard George, have hereunto set
my hand and seal, this Thirteenth day of August, in the year
of our Lord One thousand eight hundred and sixty-eight.
0
Witness,
J. G. TONGUE,
Patent Agent,
34, Southampton Buildings,
Chancery Lane, W.C.
RICHARD GEORGE. (L.S.)