IMPROVEMENTS IN GAS STOVES FOR HEATING PURPOSES."
Year: 1868

page_text: LETTERS PATENT to Henry Hodge, of Southport, in the County of
Lancaster, Ironmonger, for the Invention of "IMPROVEMENTS IN GAS
STOVES FOR HEATING PURPOSES."
PROVISIONAL SPECIFICATION left by the said Henry Hodge at the
Office of the Commissioners of Patents, with his Petition, ou the
23rd January 1868.
I, HENRY HODGE, of Southport, in the County of Lancaster, Iron-
monger, do hereby declare the nature of the said Invention for
"IMPROVEMENTS IN GAS STOVES FOR HEATING PURPOSES," to be as follows:-
My Invention relates, first, to means by which gas stoves, that is to
say, stoves in which carburetted hydrogen is "burnt," are or may be
rendered suitable for heating and warming greenhouses, churches, halls,
and other places where a high state of purity of air is required, and for
heating purposes generally, both when water circulating in pipes and
hot air passing through tubes or flues are or is the agents or agent
employed to convey and distribute the heat. For this purpose I use a
gas stove of any desired outline, the frame or body of which is so formed
or made air-tight that communication between the interior of the stove
and the air in the apartment or place where it is situated cannot take
place, that is to say, practically no air passes from the interior of the
stove into the air. To the gas jets or rings, which may be of any desired
kind, I supply the atmospheric air necessary to support combustion

page_text: through a shaft or passage led from the outside of the building, or from
any apartment or place. The products of combustion and heated air
I convey away through a flue or passage, preferably made of considerable
length, and led around the place to be heated, so as to allow nearly the
whole of the heat to be radiated. And, second, to the construction of
a gas stove embodying the above first part of my Invention, wherein
water is used as the agent to convey and distribute the heat evolved
during combustion of the gas used. I form or construct of metal two
pieces of a cylindrical or other form, the one larger than the other, and
secure them together at their ends steam-tight, so that the space between
the two thus formed serves as a boiler or water container. Pipes are
connected into the said boiler at the top & bottom thereof, and led
away therefrom to any desired place, Filling, cleaning, gauge, and
other connections are also made into the said boiler. Within the inner
cylindrical or other piece are the gas jets. The flue to convey away the
products of combustion is coupled to the top of the stove.
SPECIFICATION in pursuance of the conditions of the Letters Patent
filed by the said Henry Hodge in the Great Seal Patent Office
on the 23rd July 1868.
TO ALL TO WHOM THESE PRESENTS SHALL COME, I, HENRY
HODGE, of Southport, in the County of Lancaster, Iromonger, send
greeting.
WHEREAS Her most Excellent Majesty Queen Victoria, by Her
Letters Patent, bearing date the Twenty-third day of January, 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 Henry Hodge, Her special license,
that I, the said Henry Hodge, my executors, administrators, and
assigns, or such others as I, the said Henry Hodge, 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
GAS STOVES FOR HEATING PURPOSES," upon the condition (amongst others)

page_text: that I, the said Henry Hodge, 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 Henry Hodge, 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, reference being had to the accompanying illustrative
Drawings, and to the figures and letters thereon, that is to say :-
My Invention relates, first, to means by which gas stoves, that is to
say stoves in which carburetted hydrogen gas is burnt, are or may be
rendered suitable for heating and warming greenhouses, churches, halls,
and other places where a high state of purity of air is required, and for
heating purposes generally, both when water circulating in pipes and hot
air passing through tubes or flues are or either of them is the agents or
agent employed to convey and distribute the heat. For this purpose I
use a gas stove of any desired outline, the frame or body of which is so
formed or made air-tight that communication between the interior of the
stove and the air in the compartment or place where it is situated cannot
take place, that is to say, practically no air nor any of the products of
combustion passes nor pass from the interior of the stove into the air in
the apartment or place. To the gas jets or rings, which may be of any
desired kind, I supply the atmospheric air necessary to support com-
bustion through a shaft or passage led from the outside of the building,
or from any convenient apartment or place. The products of combustion
and heated air I convey away through a flue or passage, preferably
made of considerable length, and led around the place to be heated so
as to allow nearly the whole of the heat to be radiated. And, second,
to the construction of a gas stove embodying the above first part of
my Invention, wherein water is used as the agent to convey and dis-
tribute the heat evolved during combustion of the gas used. I form
or construct of metal two pieces of a cylindrical form, the one larger
than the other, and secure them together at their ends steam-tight,
so that the space between the two thus formed serves as a boiler or
water container. Pipes are connected into the said boiler at the top

page_text: and bottom thereof, and led away therefrom to any desired place.
Filling, cleaning, guage, and other connections are also made into the
said boiler. Within the inner cylindrical or other piece are the gas
jets. The flue to convey away the products of combustion is coupled
to the top of the stove.
On the accompanying Sheet of Drawings Fig. 1 represents a vertical
section of a gas stove constructed in accordance with the first part of
my Invention. Fig. 2 is also a vertical section illustrative of a gas
stove constructed according to the second part of my Invention.
In Fig. 1a is the body of the stove, here shewn of a hemispherical
or dome-like form to be cast in one piece. a rests closely on the floor b,
or is so fitted that the air supplied from outside the building or from
any convenient apartment through the passage or inlet c to support
combustion cannot pass into the apartment where the stove is placed;
d is the gas supply pipe, and e are perforated rings of any ordinary kind
whereat the gas is burnt. A door can be formed in a if considered
desireable. is the outlet flue or tube, this is led through or around the
apartment or place to be heated preferably in a winding direction, so that
the products of combustion before escape into the atmosphere or chimney
shall for economy of fuel have all the caloric available for heating
purposes withdrawn therefrom by radiation into the air in the apartment
or place to be heated. In Fig. 2 g is the base piece; this rests on the
floor h, and is formed with a descending piece, which is open to the air
passage formed under h; the air can be supplied to i from outside
the building, or from any place it may be convenient to ventilate;
jis a carrying piece; k is the gas supply pipe, and jets whereat
the gas is burnt; m is a door fitted to slide at will over the wire
gauze n to admit air if required. The piece j carries the outer
body o of the water-heating apparatus; p is the inner body. The water
space is between o and p, and these parts constitute the boiler; 7 and
qare the water circulating pipes, the former the outlet and the latter
the inlet; r is the water supply from a cistern or other source; & is
a guage tap, and t, a discharge or emptying tap; u is a covered opening
for cleaning the water space; v is the flue for conveying away the
products of combustion and heated air outside the building, or to some
place where their pernicious influence will not be felt. The gas is
turned on and off in the usual way, and is lit by raising or moving
-the door and wire gauze n.

page_text: Having now described the nature of my said Invention, and
particularized the same, I would have it understood that various
modifications may be made without departing from the leading features
of my said improvements; what I claim is,―
First. So fitting or constructing gas stoves in which air is employed
to convey the heat that the products of combustion and heated air
therewith are prevented from mixing with the air in the apartment or
place to be heated when the air to support combustion and to be heated
is wholly or nearly altogether supplied from the open air or from
some source outside the said apartment or place to be heated or warmed,
substantially in the manner herein described and illustrated on the
accompanying Sheet of Drawings by Fig. 1.
Second. So fitting or constructing gas stoves in which water or other
liquid or both water or other liquid and air is or are the agent or
agents to convey the heat that the products of combustion and heated
air therewith are prevented from mixing with the air in the apartment
or place to be heated, when the air to support combustion and to be
heated is wholly or nearly altogether supplied from the open air or from
some source outside the said apartment or place to be heated or warmed,
substantially in the manner herein described and illustrated on the
accompanying Sheet of Drawings by Fig. 2.
Third. The particular constructions and arrangements of parts of the
two several gas stoves for heating purposes, herein described and
illustrated on the accompanying Sheet of Drawings.
In witness whereof, I, the said Henry Hodge, have hereunto set
my hand and seal, this Seventeenth day of July, One thousand
eight hundred and sixty-eight.
In the presence of
JOHN T. KING,
Patent Agent,
Liverpool.
HENRY HODGE. (L.S.)