Improved Apparatus for :Conveying and Burning Gas in Connection with Gas Furnaces of Steam Generators.
Year: 1885

page_text: Improved Apparatus for :Conveying and Burning Gas in
Connection with Gas Furnaces of Steam Generators.
JOHN JACKSON 4 Rumford Place Liverpool in the County of Lancashire Naval
Architect & Engineer do hereby declare the nature of his invention for IMPROVED
APPARATUS FOR CONVEYING AND BURNING GAS IN CONNECTION WITH GAS FURNACES
OF STEAM GENERATORS to be as follows:-
My invention relates to arrangement for conveying the gas from the gas producer
furnaces to the combustion chambers and the aspirator at the point of combustion
draws in the necessary quantity of air to support combustion. Such aspirator
arrangement provides in the conveying pipes or casings for heating the air in its
passage in order to perfect combustion. The air inlets are so arranged that they
may be regulated in conjunction with the gas throttle valve and which can be
worked automatically together or separately.
My improved apparatus which constitutes my invention consists of the following:
features & parts namely. I arrange a tube or casing lined with fire brick or
equivalent material which leads from the gas producing furnace to the combustion
chamber, at a particular point, I arrange adjustable air inlets which admit the
necessary & required volumn of air into an annular space or chamber between the
tube or casing and lining. The air in being thus admitted and conveyed is heated
to the required temperature so as to properly mix with the gases at the point of
combustion.
The gas throttle-valve is arranged to regulate the required supply of gas, and to
divert its course to any required combustion chamber.
:

page_text: I, JOHN JACKSON Engineer of Liverpool in the County of Lancaster do hereby
declare the nature of my invention for CONVEYING & BURNING GAS IN FURNACES
and in what manner the same is to be performed, to be particularly described and
ascertained in and by the following statement:-
My Invention relates to arrangement for conveying the gas from gas producers 5
and also for conveying & equalizing the temperature of the required quantity of
air to support combustion in furnaces and combustion chambers.
In order that my Invention may be better understood and to enable any skilled
person to put the same into operation reference is hereafter made to the accom-
panying drawings and to the figures and letters marked thereon.
Figure 1 is a section elevation constructed according to my Invention.
Figure 2 is an end elevation.
Figure 3 is a plan.
Figure 4 is a sectional elevation shewing grid valve for air inlet.
1
In figures 1 & 3. A is a tube or casing lined with fire-brick or equivalent 1
material which conveys the hot air from the heating stoves, or the atmospheric air
admitted through the grid valve (G. in figs 4 & 5) to the furnace or combustion
chamber.
B is a tube for conveying the gas from the producers.
C is a tube made of fire-clay or equivalent material through which the gas 2
passes.
D is an annular space or chamber through which the air passes and is brought
to the required temperature so as to properly mix with the gases at the point of
combustion.
H. shewn in Figs. 1. 3. 4 & 6 is an arrangement of gear to regulate the required 2
supply of gas & air which in Figs. 1 & 3 is bevel quadrants & in Figs. 4 & 6 is
bellcrank & rods.
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
1st The special arrangement and construction of tube or casing for bringing the
gasses and air into combustable combination substantially as hereinafter described
and shewn in the drawings.
3
2nd In the application to blast furnaces the method of equalizing the temperature
of the gases before mixing by passing the carbonic oxide through the central pipe 3

page_text: surrounded by the blast from the hot air stoves substantially as set forth in the
drawings and described.
3rd in the application to steam generators, the method of equalizing the
temperature of the gases before mixing by means of the beat imparted to the
atmospheric air by the passage through the central pipe of the hot gasses from
the producer substantially as described and set forth in the drawings.