Impro
Year: 1889

page_text: Date of Application, 14th Mar., 1889
>pecification Accepted, 11th May, 1889
I, JAMES GALLI, of 43 Mill Hill, Leeds, in the County of York, Steam, Gas, and
Hot water Engineer, do hereby declare the nature of this invention and in what
manner the same is to be performned, to be particularly described and ascertained in
and by the following statement :-
This invention relates to certain improvements connected with my "Improved gas
stove for domestic purposes" for which I obtained Letters Patont in Great Britain,
22 June, 1887, No. 8876, and consists in the construction and arrangement of addi-
tional parts hereinafter fully described, due reference being had to the accompanying
drawings whereiu―
Fig. 1 represents a sectional plan of a gas stove fully described in the above named
Patent, with the present improvements added thereto.
Fig. 2 is a section taken on line a, b, in Fig. 1.
Fig. 3 is a section taken on line c, d, in Fig. 1.
Fig. 4 is a similar section io Fig. 2 of a stove without the hot water boiler G.
In order that these improvements may be fully understood I will describe the nature
of my Patent No. 8876, 1887.
Referring to the drawings the letter A indicates the oven of the stove consisting of
a sheet metal box or chamber, surrounded by an outer casing D in such a manuer us
to leave an air space around said oven. The casing D is composed of double walls
having a filling E of asbestos or other non-conductor of heat. In the space C between
the oven A and casing D, I arrange vertical partitions K, K.
The casing D rests upon a base H composed of double walls, filled with a non-
conductor of heat E¹ similar to the casing D. G indicates a boiler consisting of a
rectangular metal chamber supported upon or within the base H, in such a manner
that there is a space between the lower side of the said boiler and the base H, and
said space is divided into two compartments by the partition K¹. F, F indicate the
gas burners, of the ordinary atmospheric type. L indicates a pipe connecting the
space Cat the rear of the oven with spaco C. O indicates a reservoir for containing
water, said reservoir being connected with boiler G by means of pipes N, N. P indi-
cates a door for affording access to the burners F, F and other purposes such as inlet
of air to burners.

page_text: In operation the heat and products of combustion pass from the burners F, F, up
the two sides of the oven A, thence over the top and down the rear thereof, thence
through the pipe L into one end of the compartment C, and around the partition K'
from whence if escapes into the exit pipe I. Instead of passing into the compart-
ment C' the heat and products of combustion, if the stove is fixel without a boiler as
shown in Fig. 4, pass directly into the exit pipe M from the compartment C.
My improvements which I desire herein to describe are connected with the exit
pipe M. In my Patent No. 8876, 1887, this pipe consisted of a short pipe and dis-
charged the heat and products of combustion at the bottom of the stove, and at a low
temperature, which resulted in the stove giving off an unpleasant odour. The object
of these improvements is to deoderise the products of combustion, which I effect by
carrying the pipe M. to the top of the stove, either inside as shown in Fig. 4, or outside
as shown in Fig. 3, and attaching thereto a branch or tail piece M' which I carry
directly over the burners F, F. This tail piece M' has a closed end, and as the
contents become heated they mingle with the products of combustion in the pipe M,
thus raising the temperature of the latter and rendering them perfectly inodorous.
I also make a small opening at the top of the chamber C, and pass a small pipe R
from thence into the exit pipe M. This opening being but sinall allows little heat to
escape, but I find greatly facilitates the lighting of the burners F, F, as when the
stove is cold there is considerable hack draught when the burners are first lighted,
which is due to the products of combustion not being able to drive the air through the
chambers and C', but with the opening R the beat and products of combustion can
escape through such opening until the stove becomes warm, when if desirable the
opening R can be closed by means of a stop cock.
When the exit pipe M. is applied to a stove with a boiler G as shown in Fig. 3, I
fix to such pipe a cone S below the exit from the chamber 01, such cone having a
small hole therein to allow any condensed vapour in the pipe to escape. Condensation
I find takes place upon starting the stove as the products of combustion after passing
beneath the boiler Ġ are emitted at a low temperature, and the contents of the pipo M
have not had time to become thoroughly heated.
Having now particularly described and ascertained the nature of my said
invention, and in what manner the same is to be performed, I declare that what
I claim is
1. In a gas stove the application of the exit pipe M having a branch M' with closed
end, and branch pipe R, such stove being the combination with the oven A of a
casing D surrounding said oven and having double walls, a space C being formed
between said oven and the casing D for the passage of the heat, arranged substantially
in the manner as shown and described and for the purposes herein set forth.
2. In a gas stove the application of the exit pipe M having a branch M' with closed
end, branch pipe R, and cone S, such stove being a combination with the oven A and
casing D and having the space between them, of the base H the boiler G being
located therein, and having a space C' between the base and the bottom of the boiler,
and the pipe I connecting the space C with the space O, arranged substantially in the
manner as shown and described and for the purposes herein set forth.
Dated this 8th day of Marchissä
RHODES & CRITCHLEY,
27, Kirkgate, Bradford,
Agents for the Applicant.