Improvements in Apparatus for Producing and Burning Gas to Heat Furnaces and Generating Steam.
Year: 1894

page_text: Date of Application, 18th Sept., 1894
Complete Specification Left, 17th June, 1895-Accepted, 14th Sept., 1895
PROVISIONAL SPECIFICATION.
Improvements in Apparatus for Producing and Burning Gas to Heat
Furnaces and Generating Steam.
I, WILLIAM FELTON, of Wilden Iron Works, near Stourport in the County of
Worcester, Engineer, do hereby declare the nature of this invention to be as
follows:-
In order to generate steam under pressure to be used in a steam engine or to be
otherwise employed I make use of a gas producer which is more or less similar to
the gas producers described in the Specifications of Patents granted to me No. 5411
in the year 1882 and No. 5530 in the year 1883; I have however made several
improvements.
The upper part of the gas producer is of sheet iron, it is four sided and arched
at the top; it is made double throughout with an inner and outer skin and a water
space between; indeed it constitutes an auxiliary steam boiler. The structure is
of sufficient strength to safely bear the steam pressure and it is connected with the
main boiler by pipes both above and below the water level. There is an opening
in the end for feeding in fuel and this is closed by a door which fits gas tight.
Tubular passages through the front water space give exit to the gas from the
producer and admit it into the combustion chamber.
There are also tubular passages through the sides which may be used in stoking
and which strengthen the structure.
The lower part of the gas producer is built in firebrick to some distance above
the grate bars and in this part of the producer stoking and cleaning doors are pro-
vided. There is a chamber beneath the grate bars into which air is forced by a
steam jet the air passing up through the deep bed of ignited fuel results in the
production of gas which passes into the combustion chamber as already described.
I combine my steam generating gas producer with a reheating furnace or like
furnace of the reverberatory type and with a steam boiler receiving the waste heat
from the reverberatory furnace.
The gas from the producer enters a gas chamber built alongside of the producer
and from thence it issues horizontally through numerous passages or ports at the
bridge or entrance to the reverberatory furnace. Here the gas meets with air
entering in a vertical direction by other ports situate above and below the gas
ports.
Complete combustion takes place within the reverberatory furnace and by a flue
or conductor which preferably is slightly inclined in an upward direction the
highly heated products of combustion pass from the furnace into a main steam
boiler such as I have before referred to and which is connected both above and
below the water level with the steam generating gas producer.
Sometimes I combine my steam generating gas producer with a tin plate or sheet
mill furnace and I may or may not make use of the waste products of combustion
from the furnace to generate steam.
Dated this 20th day of November 1894.
WILLIAM FELTON.

page_text: GUMI ZIE DI DUTTIVATION
Improvements in Apparatus for Producing and Burning Gas to Heat
Furnaces and Generating Steam.
I, WILLIAM FELTON, of Wilden Iron Works, near Stourport in the County of
Worcester, Engineer, 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:-
In order to generate steam under pressure to be used in a steam engine or to be
otherwise employed, I make use of a gas producer which is more or less similar to
the gas producers described in the Specifications of Patents granted to me No. 5411
in the year 1882 and No. 5530 in the year 1883. I have however made several
improvements.
The upper part of the gas producer is of sheet iron, it is four sided and arched
at the top; it is made double throughout with an inner and outer skin and a water
space between; indeed it constitutes an auxiliary steam boiler. The structure is
of sufficient strength to safely bear the steam pressure and it is connected with the
main boiler by pipes both above and below the water level. There is an opening
in the end for feeding in fuel and this is closed by a door which fits gas tight.
Tubular passages through the front water space give exit to the gas from the
producer and admit it into the combustion chamber.
There are also tubular passages through the sides which may be used in stoking
and which strengthen the structure.
The lower part of the gas producer is built in firebrick to some distance above
the grate bars and in this part of the producer stoking and cleaning doors are
provided. There is a chamber beneath the grate bars into which air is forced
by a steam jet the air passing up through the deep bed of ignited fuel results in
the production of gas which passes into the combustion chamber as already
described.
I combine my steam generating gas producer with a reheating furnace or like
furnace of the reverberatory type and with a steam boiler receiving the waste heat
from the reverberatory furnace.
The gas from the producer enters a gas chamber built alongside of the producer
and from thence it issues horizontally through numerous passages or ports at the
bridge or entrance to the reverberatory furnace. Here the gas meets with air
entering in a vertical direction by other ports situate above and below the gas ports.
Complete combustion takes place within the reverberatory furnace and by a
flue or conductor which preferably is slightly inclined in an upward direction the
highly heated products of combustion pass from the furnace into a main steam
boiler and which is connected both above and below the water level with the steam
generating gas producer.
Sometimes combine my steam generating gas producer with a tin plate or sheet
mill furnace and I may or may not make use of the waste products of combustion
from the furnace to generate steam.
In order that my said invention may be fully understood and readily carried
into effect I will proceed to describe the drawings annexed.
DESCRIPTION OF THE DRAWINGS.
Figure 1 is an elevation of apparatus in accordance with my invention comprising
a steam yielding gas producer, a reverberatory furnace suitable for use in working
metals and a steam boiler. Figure 2 is a longitudinal section of the same.
Figure 3 is a transverse section on the line 3. 3 in Figure 1.
Figure 4 shows an elevation of other apparatus in accordance with my invention
comprising a steam yielding gas producer and a tin plate or like reverberatory

page_text: furnace.
same.
Figure 5 is a longitudinal section and Figure 6 is a sectional plan of the
a a are the inner and outer skins of the boiler like structure which constitutes
the upper part of the gas producer. bb are conical tubes connecting the two skins ;
one or more of these serve as gas exits and the others are closed gas tight by doors
or plugs whilst the apparatus is at work; they can be opened however when
required for stoking. c is an aperture provided for the supply of fuel, it is fitted
with a door which shuts close. d is a manhole cover which closes steam tight
a corresponding opening which gives access to the interior of the boiler like
structure. This part of the gas producer is of such strength that it will sustain
safely the steam pressure at which the apparatus is intended to be worked. Where
as in Figures 1 and 2 the products of combustion are after heating a furnace caused
to heat also a steam boiler flue, the water space of the gas producer is connected
with the boiler by two pipes. One of the pipes e connects the steam spaces, the
other which connects the water spaces is not seen in the drawings. Where there is
no other boiler in connection with the gas producer, this is provided with the usual
boiler fittings.
The lower part of the gas producer is preferably of brickwork f in any case
in the enclosing sides or walls there is no water space; there are fire bars at g and
immediately above the bars a stoking door at h. Beneath the bars g there is an
ashpit with a tightly fitting door. i is a blower by which air is driven into the
closed ash pit, being urged by a steam jet. The steam is drawn from the upper
part of the producer and conveyed by the pipe j. By forming the lower part
of the gas producer of brick work I obtain greater regularity in the generation of
the gas than would be found if this part of the generator were of metal cooled by
contact with water. k is a cylindrical boiler of ordinary type and is an internal
flue passing along it from end to end; at the further end of this flue connection is
made with the chimney.
The gas issuing from the gas producer is received into a gas chamber n in
which a uniform distribution takes place and then the gas streams out through
numerous apertures o in the front wall of the chamber. p in Figure is the
bed of the reheating or other reverberatory furnace, the gas in an ignited state
passes over this bed.
The air necessary to support combustion enters by apertures 9 at the bridge
of the furnace it immediately mixes with the gas and energetic combustion takes
place. The air is drawn from beneath the bed of the furnace and is consequently
heated. The quantity of air admitted is regulated by valves rr at the entrance
to the flues which lead to the apertures g. After being utilized in the furnace the
heated products of combustion are conducted by a brick flues to the entrance of
the boiler flue. The arrangements shewn in Figures 4, 5 and 6 are so similar to
those already described that detailed description is unnecessary.
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. The combination of a steam yielding gas producer, a gas chamber, a rever-
beratory furnace bed and passages so arranged that the gas meets with air at the
furnace bridge and is burnt as it passes over the bed.
2. The combination of a steam yielding gas producer, a reverberatory furnace
bed and a steam boiler, the said furnace bed situate between the producer and the
boiler and the water and steam spaces in the producer and boiler being connected
so as to maintain the same water level.
3. Apparatus substantially as described and illustrated by the annexed
drawings.
DALL 71 1
1002

page_text: Date of Application, 18th Sept., 1894
Complete Specification Left. 17th June, 1895-Accepted. 14th Sept.. 1895
PROVISIONAL SPECIFICATION.
Improvements in Apparatus for Producing and Burning Gas to
Generate Steam.
I, WILLIAM FELTON, of Wilden Iron Works, near Stourport, in the County of
Worcester, Engineer, do hereby declare the nature of this invention to be as
follows:-
In order to generate steam under pressure to be used in a steam engine or to be
otherwise employed I make use of a gas producer which is more or less similar to
the gas producers described in the Specifications of Patents granted to me
No. 5411 in the year 1882 and No. 5530 in the year 1883: I have however made
several improvements in such producers which I will presently describe. The
improved gas producer I combine with a steam boiler of the horizontal cylindrical
internally fired type. I connect the gas producer with the boiler by means of a
combustion chamber which I construct between the two. The combustion chamber
is built in fire brick and is a passage which at one end receives the gas from the
producer and at the other end opens into the internal flue or flues or under the
bottom of the boiler and delivers into it the flame resulting from the burning of
the gas. The side walls of the combustion chamber are traversed by air flues
and the air which becomes heated by passing through the passages enters the
combustion chamber by numerous perforations in the bottom and sides of the
chamber.
J
The air currents, which can be controlled by dampers, meet the gas from the
producer near its entrance into the combustion chamber and the gas becomes
ignited. A thorough admixture of the gas and air takes place in the combustion
chamber and the temperature of every part of the mixture becomes sufficiently
elevated to ensure complete combustion before the flame passes out and commences
to impart its heat to the boiler and the water it contains. Within the combustion
chamber and in the path of the flame I erect an openwork structure in firebrick
which becomes highly heated; it serves to reignite the gas when it is again
admitted after any short intermission in its flow.
The upper part of the gas producer is of sheet iron, it is four sided and arched
at the top; it is made double throughout with an inner and outer skin and a water
space between; indeed it constitutes an auxiliary steam boiler. The structure is
of sufficient strength to safely bear the steam pressure and it is connected with the
main boiler by pipes both above and below the water level. There is an opening
in the end for feeding in fuel and this is closed by a door which fits gas tight.
Tubular passages through the front water space give exit to the gas from the
producer and admit it into the combustion chamber.
There are also tubular passages through the sides which may be used in stoking
and which strengthen the structure.
The lower part of the gas producer is built in firebrick to some distance above
the grate bars and in this part of the producer stoking and cleaning doors are
provided. There is a chamber beneath the grate bars into which air is forced
by a steam jet the air passing up through the deep bed of ignited fuel results
in the production of gas which passes into the combustion chamber as already
described:

page_text: Sometimes for the external firing of a steam boiler I build a gas generator in
brickwork beneath the boiler at the front. It consists of a chamber arched over
at the top and with grate bars at the lower part. In the front of the generator
there are three doors, namely a door opening into an ashpit beneath the grate bars;
a door immediately above the level of the grate bars which gives access to the fire
for cleaning; and a door near the top of the chamber which is opened to admit
fuel. There are openings at the front through the arched roof of the chamber for
the exit of gas, and other openings through the front wall for the admission of air
to the space immediately above, the gas openings in the arch. The gas is burnt
between the arched roof of the generator and the bottom of the boiler and the
products of combustion impart their heat to the boiler as they pass away through
suitable flues. On the roof of the generator there is an openwork structure of
firebrick which becomes highly heated and serves to reignite the gas should the
flame be extinguished.
On the back wall of the chamber a ledge is formed to support bars which are.
temporarily inserted when the fire is to be cleaned.
Dated this 17th day of September 1894.
Improvements in Apparatus for Producing and Burning Gas to
Generate Steam.
I, WILLIAM FELTON, of Wilden Iron Works, near Stourport, in the County of
Worcester, Engineer, 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:-—
In order to generate steam under pressure to be used in a steam engine or to be
otherwise employed I make use of a gas producer which is more or less similar
to the gas producers described in the Specifications of Patents granted to me
No. 5411 in the year 1882 and 5530 in the year 1883; I have however made
several improvements in such producers which I will presently describe. The
improved gas producer I combine with a steam boiler of the horizontal cylindrical
internally fired type. I connect the gas producer with the boiler by means of a
combustion chamber which I construct between the two. The combustion chamber
is built in fire brick and is a passage which at one end receives the gas from the
producer and at the other end opens into the internal flue or flues or under the
bottom of the boiler and delivers into it the flame resulting from the burning of
the gas. The side walls of the combustion chamber are traversed by air Hues
and the air which becomes heated by passing through the passages enters the
combustion chamber by numerous perforations in the bottom and sides of the
chamber.
The air currents, which can be controlled by dampers, meet the gas from the
producer near its entrance into the combustion chamber and the gas becomes
ignited. A thorough admixture of the gas and air takes place in the combustion
chamber and the temperature of every part of the mixture becomes sufficiently
elevated to ensure complete combustion before the flame passes out and commences
to impart its heat to the boiler and the water it contains. Within the combustion
chamber and in the path of the flame I erect au openwork structure in fire brick
which becomes highly heated; it serves to reignite the gas when it is again
admitted after any short intermission in its flow.
The upper part of the gas producer is of sheet iron, it is four sided and arched
at the top; it is made double throughout with an inner and outer skin and a water
space between, indeed it constitutes an auxiliary steam boiler. The structure is of

page_text: Figure 1 is a side elevation of apparatus in accordance with my invention.
Figure 2 is a horizontal section on the line 2, 2, in Figure 1.
Figure 3 is a transverse section on the line 3, 3, in Figure 1.
a a are the inner and outer skins of the boiler like structure which constitutes
the upper part of the gas producer. bb are conical tubes connecting the two skins;
one or more of these serve as gas exits and the others are closed gas tight by doors
or plugs whilst the apparatus is at work; they can be opened however when
required for stoking. c is an aperture provided for the supply of fuel, it is fitted
with a door which shuts close. d is a manhole cover which closes steam tight a
corresponding opening which gives access to the interior of the boiler like structure.
This part of the gas producer is of such strength that it will sustain safely the
steam pressure at which the apparatus is intended to be worked; it is connected
with the main boiler by two pipes, one of the pipes e connects the steam spaces, the
other which connects the water spaces is not seen in the drawings. The lower part
of the gas producer is preferably of brickwork fin any case in the enclosing sides
or walls there is no water space; there are fire bars at 9 and immediately above
the bars a stoking door at h. Beneath the bars g there is an ash pit with a tightly
fitting door. is a blower by which air is driven into the closed ash pit, being
urged by a steam jet. The steam is drawn from the upper part of the producer
and conveyed by the pipe j. By forming the lower part of the gas producer of
brickwork I obtain greater regularity in the generation of the gas than would be
found if this part of the generator were of metal cooled by contact with water.
k is a cylindrical boiler of ordinary type and is an internal flue passing along it
from end to end at the further end of this flue connection is made with the
chimney.
Between the gas producer and the boiler is the combustion chamber which is
built of fire brick, it may be within an iron casing. Air passages are left in the
brickwork so arranged that air may enter at then pass in contact with the
highly heated brickwork and enter the combustion chamber at 12 where there is a
belt of perforated brickwork. The highly heated air meets and mingles with the
gas coming from the producer and energetic combustion takes place. At are
regulating valves by which the quantity of air entering the combustion chamber
can be adjusted so as to obtain a practically perfect combustion without undue
excess of air.
Within the combustion chamber at m 1 build up a structure in fire brick; it is
so formed as to leave numerous free passages for the flame through the structure
and consequently it becomes highly heated. Hence if from any cause the flame
should be extinguished the gas is relighted as soon as it again comes into contact
with the structure m.
J

page_text: Although I have described a special form of boiler to be used over the producer
chamber yet I do not limit myself to the form of boiler described. I may use a
cylindrical boiler with or without an internal tube, and I may use any other form
of boiler suitable for the purpose.
Although I prefer to connect the combustion chamber with the internal Ade of
the boiler k, it may nevertheless be connected with a flue or flues underneath the
boiler.
Having now particularly described and ascertained the nature of
said inven-
my.
tion and in what manner the same is to be performed, I declare that what I
claim is :-
1. A gas producer consisting of a fuel chamber the lower part of which is built
in brickwork or otherwise without water space and has a boiler over it in which
steam is generated under pressure and is drawn off for use and which has a blower
for introducing air at the lower part beneath the fuel.
2. A gas producer consisting of a fuel chamber the lower part of which is of
brickwork or otherwise without water space and the upper is a double_shelled
boiler like structure enclosing a water space in which steam is generated under
pressure, and is drawn off for use; and which has a blower for introducing air at
the lower part beneath the fuel, a lateral opening or openings in the upper part by
which the gas issues, and other openings for introducing fuel and for stoking.
3. The combination of a steam yielding gas producer a combustion chamber and
a steam boiler so arranged that gas issues laterally from the gas producer, traverses
the combustion chamber, where it meets with air and is ignited, and passes through
or beneath the boiler all in a direct and nearly horizontal course.
4. The combination of a steam yielding gas producer, a combustion chamber, an
openwork structure built of refractory material within the combustion chamber
serving to reignite the gas and a furnace flue or chamber into which the flame passes
in order that its heat may be utilised.
5. Apparatus substantially as described and illustrated by the annexed
drawings.
Dated this 7th dox of June 189
WILLIAM FELTON.