Improvements in or relating to Chambers for the Combustion of Gases.
Year: 1896

page_text: Date of Application, 24th Apr., 1896
Complete Specification Left, 21st Jan., 1897-Accepted, 27th Mar., 1897
PROVISIONAL SPECIFICATION.
Improvements in or relating to Chambers for the Combustion
of Gases.
I, JEAN HARTMANN, of 21 Boulevard Poissounière, Paris, in the Republic of
France, do hereby declare the nature of this invention to be as follows:-
This invention relates to a gas combustion chamber having exterior hollow walls
for avoiding loss of heat by radiations; and furnished with graduated air and gas
inlet valves so as to obtain the proper proportions of air and gas, indispensable for
obtaining perfect coinbustion.
The apparatus serves for heating steam-generators or other furnaces, by the
combustion of waste gases from blast furnaces, or the like, or arising from special
gas producing apparatus.
The apparatus is composed of three communicating. combustion-chambers or in
some instances of two chambers with suitable flame outlet so arranged as to obtain
at least one over-turning of the flame.
All of the walls which encase the combustion chamber, and which are externally
in contact with the atmosphere, are entirely hollow or provided with flues, in which
the atmospheric air, necessary for the combustion of the gas circulates. This
circulation of air is produced by the draught from a chimney, or by a blast-device.
The air, while passing into the flues, carries away with it all of the heat resulting
from radiation and lost through the walls, and returns the same into the interior of
the combustion chambers.
I provide a device for regulating the introduction of gas, and another for
regulating the supply of atmospheric air, necessary for combustion. These two
apparatus or devices are valvea properly graduated and provided with figures;
a gas-pressure indicator fixed at the place, where the gas enters, indicates the
pressure of the gas and to this pressure correspond certain bars and numbers marked
upon the valves in such a manner, that, when the two valves are opened to these
bars, the proportions and quantities of air and gas necessary for perfect combustion
are established.
When the apparatus is not placed in the ground, it is surrounded with a complete
metal envelope, or is only mounted with metal ties or anchors; the whole exterior
surface is then covered with a layer of car, in order to reuder the apparatus
air-tight.
Duted this 24th day of April 1800
HASELTINE, LAKE & Co.,
45 Southampton Buildings, W.C., Agents for the Applicant.

page_text: Improvements in or relating to Ohambers for the Combustion
of Gases.
1, JEAN HARTMANN, of 21 Boulevard Poissonnière, Paris, in the Republic of
France, 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 aud by the
following statement :-
This invention relates to a gas combustion chamber having exterior hollow walls
for avoiding loss of heat by radiation, and furnished with graduated air and gas
inlet valves so as to obtain the proper proportions of air and gas, indispensable for
obtaining perfect combustion.
The apparatus, serves for heating steam-generators or other furnaces, by the
combustion of waste gases from blast-furnaces or the like, or arising from special
gas producing apparatus.
This apparatus is represented in the accompanying drawing, in which:
Figures 1 and 2 are sectional elevations and
Figure 3 a sectional plau of an apparatus arranged entirely under-ground.
Figures 4 and 5 are sections in elevation and plan, of an apparatus placed
entirely above the ground.
The apparatus is composed of three communicating combustion-chambers 10,
1.1, 12, with suitable flame-outlet 13, or in some instances of two chambers 10 and 11
only, with flame exit 13. These chambers are so arranged as to obtain at least one
overturning of the flame.
All the walls which encase the combustion chamber, and which are externally in
contact with the atmosphere, are entirely hollow or provided with flues, in which
the atmospheric air necessary for the combustion of the gas circulates. This
circulation of air is produced by the draught from a chimney, or by a blast-device.
The air, while passing into the flues, carries away with it all the heat resulting
from radiation and lost through the walls, and returus the same into the interior of
the combustion chambers.
1 provide a device 15 for regulating the introduction of gas, and another
device 16 for regulating the supply of atmospheric air, necessary for combustion.
These two apparatus or devices consist of valves properly graduated and provided
with figures; a gas-pressure indicator fixed at the place, where the gas enters,
indicates the pressure of the gas, and to this pressure correspond certain bara aud
numbers marked upon the valves in such a manner, that, when the two valves are
opened to these bars, the proportions and quantities of air and gas necessary for
perfect combustion are established.
When the apparatus is not placed in the ground, it is surrounded with a complete
metal envelope or casing, or is only mounted with metal ties or anchors; the whole
exterior surface is then covered with a layer of tar, in order to render the apparatus
air-tight.
Having now particularly described and ascertained the nature of this iuven-
tion and in what manner the same is to be performed, 1 declare that what I
claim is :-
The constructional arrangement of the gas combustion chamber, hereinbefore
described and represented in the accompanying drawings; the constructional
arrangement of the hollow outer walls, serving to prevent any heat from being
lost; and the arrangement, graduation and numbering of the gas and air inlet

page_text: valves, in combination with a gas pressure-indicator, for the purpose of suitably
proportioning the quantities of gas and air necessary for ensuring efficient.
combustion.
Dated this 21st day of January 1897
HASELTINE, LAKE & Co.,
45 Southampton Buildings, W.C., Agents for the Applicant.