Year: 1887

page_text: Date of Application, 30th June, 1887
Complete Left, 27th Mar., 1888
Complete Accepted, 11th May, 1888,
I, JACQUES EDOUARD POTAIN of 95 Boulevard Beaumarchais Paris, France:
Gentleman, do hereby declare the nature of this invention to be as follows:-
:―
This invention relates to the construction and arrangement of a gas stove in such a
manner that the compartment in which the gas is burned has no communication with
the apartment heated by the stove, and that the gas is supplied with heated air for
its combustion.
The body of the stove is divided by two horizontal partitions into three compart-
inents, and the uppermost compartment is divided by vertical partitions so as to form
three channels. By one of these channels air drawn from outside by a pipe annularly
surrounding the flue pipe descends to the lowest compartment in quantity regulated
by a valve to supply the burners which are situated in the lowest compartment. The
jets of gas pass through holes in the lowest horizontal partition, each hole being made
sufficiently large to allow air to ascend with the jet, aud this air being heated by its
passage along the flue and down the body of the stove and being brought into close
contact with the gas jets, causes the gas to be very completely consumed producing
great heat. The products of combustion ascend from the middle compartment up one
of the channels in the bighest compartment and thence to the flue pipe.
The air of the apartment enters by a lateral transverse passage the third channel in
the uppermost compartment, which channel is annularly surrounded by that for the
ascent of the products of combustion and the air thus heated escapes through a grating
at the top of the stove. Within this air heating channel may be placed heating, or
cooking vessels. In front of the middle compartment is a door for lighting the
gas jets.
I
ABEL & IMRAY;
Agents for the Applicant.

page_text: I, JACQUES EDOUARD POTAIN of No. 95 Boulevard Beaumarchais Paris, France
Gentleman do hereby declare the nature of this invention and in what manner the
same is to be performed to be particularly described and ascertained in and by the
following statement :-
This invention relates to the construction and arrangement of a gas stove in such a
manner that the compartment in which the gas is burned has no communication with
the apartment heated by the stove, and that the gas is supplied with heated air for its
combustion.
The body of the stove is divided by two horizontal partitions into three compart-
ments, and the uppermost compartiment is divided by vertical partitions so as to form
three channels.
By one of these channels, air drawn from outside by a pipe annularly surrounding
the flue pipe descends to the lowest compartment in quantity regulated by a valve to
supply the burners which are situated in the lowest compartment. The jets of gas
pass through holes in the lowest horizontal partition, each hole being made sufficiently
large to allow air to ascend with the jet, and this air being heated by its passage along
the flue and down the body of the stove and being brought into close contact with the
gas jets causes the gas to be very completely consumed producing great heat. The
products of combustion ascend from the middle compartment up one of the channels
in the highest compartment and thence to the flue pipe. The air of the apartment
enters by a lateral transverse passage the third channel in the uppermost compartment,
which channel is annularly surrounded by that for the ascent of the products of com-
bustion and the air thus heated escapes through a grating at the top of the stove.
Within this air heating channel may be placed heating or cooking vessels. In front
of the middle compartment is a door for lighting the gas jet.
Fig. 1 of the accompanying drawings is a vertical section on E F of. Fig. 2 which
is a sectional plan on A B of Fig. 1, and Fig. 3 is a transverse section of the chimney
at CD of Fig. 1. G is the external casing, which may be cylindrical as shewn or of
other form, resting on a hollow base H. The interior is divided by the two horizontal
partitions I and J into three compartments in the uppermost of which is a cylinder K.
In the lowest compartment is arranged a set of gas burners L each of which may
have its regulator M. The jets pass through holes in J along with the air to support
combustion. Around the cylinder K there is an annular passage P by which the hot
products of combustion ascend to be discharged by the chimney tube Q which passes
through a wall or window to the exterior. The air which supports combustion, enters
by the annular passage between the chimney tube Q and an outer tube R, and
descends a side flue S to the lowest compartment in quantity regulated by a throttle
valve T in the flue S. A single opening through the wall serves for emission of
products of combustion and adinission of air to support combustion.
From the apartment in which the stove is situated air enters by a lateral passage U

page_text: or several of these to the interior space N of the cylinder K in which it is heated and
ascends issuing by
grating V. A door W can be opened to light the jet. It will
be seen that the air for supporting combustion is heated by contact with the walls of
the passages for the hot products of combustion, and that the air of the apartment in
like manner is heated in passing through U and N. In N a cooking vessel or a vessol
to keep food warm may be suspended as shewn. In order to prevent any communica-
tion between the fresh air passage and that for products of combustion the parts
should be jointed together with asbestos packings.
Having now particularly described and ascertained the nature of my inven-
tion and in what manner the same is to be performed I declare that what 1
claim is:-
A gas stove having its jets supplied with air heated by contact with the passages
for emission of products of combustion, the air and products flowing in opposite
direction through a single opening to the exterior, and having a central air heating
chamber annularly surrounded by the passage for hot products of combustion
substantially as described and illustrated.
ABEL & IMRAY,
Agents for the Applicant.