A New or Improved Self-contained Gas-fired Steam Generator.
Year: 1891

page_text: Date of Application, 19th Dec., 1891
Complete Specification Left, 17th Sept., 1892-Accepted, 22nd Oct., 1892
PROVISIONAL SPECIFICATION.
A New or Improved Self-contained Gas-fired Steam Generator.
WC, GEORGE HENRY TAYLOR, of 96 Harford Street, Mile End Road, in the
County of London, Engineer, and WILHELM OTTO AXEL LOWE, of 10 Dale
Street, Liverpool, in the County of Lancaster, Merhant, do hereby declare the
nature of this invention to be as follows :-
:-
This invention relates to a new or improved self-contained gas-fired steam-
generator in which the gas producer is so arranged as to surround the combustion
chamber, and the combustion chamber is located either concentrically with, or
eccentrically to, the gas-producer furnace, and the gases generated in the producer
furnace are conducted through suitable conduits or flues to the internally arranged
combustion chamber, wherein they are ignited and burned.
These conduits or flues may be arranged to extend within the boiler, and the
descending portions of such conduits or fues may consist of two or more branch
flues or downtakes so disposed that as the gases descend they become divided and
enter the lower portion of the combustion chamber where they meet and adinix
with atmospheric air which is advantageously heated by being caused to pass
through regulatable conduits or passages formed in the wall separating the com-
bustion chamber from the producer, and also entering the lower portion of the
combustion chamber; or in other suitable manner.
The combusted gases or products of combustion are conducted from the com-
bustion chamber by means of fire tubes communicating with a waste heat box which
may be situated below the water level, whence they escape to a chimney after
having imparted most of their heat to the surrounding water contained in the
boiler. We may provide two feed hoppers for supplying the fuel to the producer
furnace, and both the producer furnace and the combustion chamber may advan-
tageously be surrounded with a water space each of which would be in free
communication with the water in the boiler.
If desirable, we can employ two or more separate combustion chambers which
may be surrounded by oue and the same producer furnace.
Dated this 19th day of December 1891.
ERNEST DE PASS,
78, Fleet Street, London, and 6, Victoria Street, Nottingham,
Agent for the Applicants.
COMPLETE SPECIFICATION.
A New or Improved Self-contained Gas-fired Steam Generator.
We, GEORGE HENRY TAYLOR, formerly of 96 Harford Street, Mile End Road,
and now of Cadby Hall Works, West Kensington, in the County of London,
Engineer, and WILHELM OTTO AXEL LOWE, of 10 Dale Street, Liverpool, in the
County of Lancaster Merchant 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, reference being had to the
accompanying drawings and to the letters and figures marked thereon, that is
to say:
This invention relates to a new or improved self-contained gas-fired steam-
generator in which the gas producer is so arranged as to surround, or partially
surround, the combustion chamber, and the combustion chamber is located either
concentrically with, or eccentrically to, the gas producer, and the gases generated

page_text: in the producer are conducted, through suitable conduits or flues, to the internally
arranged combustion chamber, wherein they are ignited and burned.
These conduits or flues may be arranged to extend within the boiler, and the
descending portions of such conduits or flues may consist of two or more branch
flues or downtakes so disposed that as the gases descend they become divided and
enter the lower portion of the combustion chamber, where they mix and admix with
atmospheric air entering the lower portion of the combustion chamber, and which
air is advantageously heated by being caused to pass through regulatable con-
duits or passages, formed in the wall separating the combustion chamber from
the producer; or the air may be admitted and heated in any other suitable
manner.
The combusted gases, or products of combustion, are conducted from the com-
bustion chamber by means of fire tubes communicating with a waste heat box,
which may be situated below the water level, whence they escape to a chimney,
after having imparted most of their heat to the surrounding water contained in
the boiler. We may provide two feed hoppers for supplying the fuel to the
producer, and both the producer and the combustion chamber may advantageously
be surrounded with a water space, cach of which would be in free communication
with the water in the boiler.
If desirable, we can employ two or more separate combustion chambers which
may be surrounded by one and the same producer.
And in order that our said invention may be readily understood we proceed
to describe the same fully with reference to the accompanying drawings.
Fig. 1 is a vertical section and Fig. 2 a transverse section on the line A. A,
shewing a steam generator constructed in accordance with our invention, and,
Fig. 3. is a vertical section, and Fig. 4 a transverse section, on the line B, B, of
a modified construction thereof.
Like letters of reference indicate similar parts in all the figures, and the feathered
arrows shew the direction of the gases and the plain ones that of the air.
In the construction, shewn by Figs. 1 and 2, a is an annular producer which
entirely surrounds a centrally located combustion chamber b, and the gases
generated in the producer are conducted by the vertical conduits or flues c, con-
nected with branch flues or downtakes c', into the combustion chamber through the
ports or openings. The air to support combustion is admitted through passages d
leading into an annular passage di, situated between the combustion chamber and
the producer, whence the air, after becoming heated by contact with the hot brick-
work, is led into the combustion chamber through the ports or openings . These
air passages are provided with dampers d³, by means of which the inlet for the air
can be regulated.
The products of combustion, or combusted gases, ascend from the combustion
chamber up the nest of fire tubes e and reach a waste heat box f, which is
located below the water level in the boiler, and escape therefrom by the
chimney g.
As will be seen from Fig. 2 the producer is fired from four separate furnaces h,
each of which is fed from a hopper j, and in order to prevent the fuel from
extending too far round the producer, and thus render stoking difficult, partitions a',
are provided, which, however, do not extend entirely up to the top of the producer,
but are so arranged as to leave a space or opening a², through which the gases, as
they are generated, can pass around the producer.
The furnaces are provided with doors a³, a', the former of which permit of the
removal of clinker and the latter of the removal of ashes.
•
In the construction shewn by Figs. 3 and 4, the producer is so arranged as to
partially surround or embrace the combustion chamber, and, in this case, only
two furnaces are necessary. The vertical conduits or flues c, instead of being
connected with branch flues c', as in the former construction, are connected to
single downtakes c*.
In both the constructions shewn, a free space for water is left around the com-

page_text: bustion chamber and the producer, so that any heat radiating therefrom is
effectually taken up by the surrounding water.
Having now particularly described and ascertained the nature of our invention
and in what manner the same may be performed we declare that we claim:
1. A self contained gas-fired steam-generator in which the combustion chamber
is surrounded by a producer fired from two or more furnaces, substantially as
hereinbefore described.
2. The construction of a self-contained gas-fired steam generator in which the
gases are generated in an annular producer and are led, by suitable uptakes and
branch downtakes arranged within the generator, to a centrally located combustion
chamber, where they meet with incoming heated air, the products of combustion
being conducted by fire tubes to a waste heat box and thence to a chimney,
substantially as described and shewn by Figs. 1 and 2. of the annexed drawings.
3. The modified construction of self-contained gas fired steam generator in
which the combustion chamber is partially surrounded or embraced by the
producer, substantially as hereinbefore described and shewn by Figs. 3 and 4 of
the annexed drawings.
4. Our new or improved self-contained gas-fired steam-generator, substantially
as hereinbefore described and shewn by the accompanying drawings.
Did this 1741 1
1005
ERNEST DE PASS,
Chartered Patent Agent,
78, Fleet Street, London, and 6, Victoria Street, Nottingham,
Agent for the Applicants.