Improvements in Self-contained Gas-fired Steam Generators.
Year: 1892

page_text: Date of Application, 23rd May, 1892
Complete Specification Left, 23rd Feb., 1893-Accepted, 1st Apr., 1893
PROVISIONAL SPECIFICATION.
Improvements in Self-contained Gas-fired Steam Generators.
We, GEORGE HENRY TAYLOR, 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 to be as follows:-
This invention relates to improvements in self-contained gas-fired steam
generators, and is more especially applicable to sectional or water tube generators
of the Mills type.
According to our invention we arrange a water jacketted gas producer, or
producers, within the space now usually occupied by the ordinary furnace, and we
so construct the enclosing brickwork of the generator that a combustion chamber is
formed partly around the water jacketted producer, or producers; or in other
words the gas producer, or producers, form an integral part of the structure. The
gases generated in the producer or producers are led into the combustion chamber
by suitable. conduits, where they meet with heated air entering through suitable
inlets. The gases, after combustion, are directed between and among the nest of
inclined water tubes, and finally to the chimney, by means of suitably arranged
partition walls and baffles.
The water jacket surrounding the producer or producers is in communication
with the front end of the steam and water drum by means of a suitably shaped
header having sufficient area to receive the ends of the inclined water tubes. The
opposite ends of these tubes are received in a water chamber or header situated
near the back of the structure, and the upper part of this chamber or header is in
connection with the steam and water drum by means of a nest of vertically inclined
water tubes, while the lower part thereof is in communication with a mud chamber
by another nest of vertically inclined tubes. The said water chamber or header,
and the mud chamber are each in communication with the water jacket of the
producer or producers by means of suitable circulating pipes or conduits.
Thus by means of our invention every possible facility is given for the heated
gases and products of combustion to part with their heat to the water contained in
the various tubes, pipes, and chambers; and in this manner a rapid generation of
steam is ensured as well as a good circulation of water obtained, and a practically
smokeless generator is produced.
ERNEST DE PASS,
Chartered Patent Agent,
78, Fleet Street, London, and 6, Victoria Street, Nottingham,
Agent for the Applicants.
COMPLETE SPECIFICATION.
Improvements in Self-contained Gas-fired Steam Generators.
We, GEORGE HENRY TAYLOR 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:―
This invention relates to improvements in self-contained gas-fired steam

page_text: generators, and
is more especially applicable to sectional water tube steam
generators.
According to our invention we arrange a water jacketted gas producer or
producers, within the space now usually occupied by the ordinary furnace, and we
so construct the enclosing brickwork of the generator that a combustion chamber
is formed partly around the water jacketted producer or producers, or in other
words the gas producer or producers, form an integral part of the structure. The
gases generated in the producer or producers are led into the combustion chamber
by suitable conduits, where they meet with heated air entering through suitable
inlets. The gases, after combustion are directed between and among the nest of
inclined water tubes and finally to the chimney by means of suitably arranged
partition walls and baffles.
The water jacket surrounding the producer or producers is in communication
with the front end of the steam and water drum by means of a suitably shaped
header having sufficient area to receive the ends of the inclined water tubes. The
opposite ends of these tubes are received in a water chamber or header situated near
the back of the structure, and the upper part of this chamber or header is in
connection with the steam and water drum by means of a nest of vertically inclined
water tubes while the lower part thereof is in communication with a mud chamber
by another nest of vertically inclined tubes. The said water chamber or header
and the mud chamber are each in communication with the water jacket of the
producer or producers by means of suitable circulating pipes or conduits.
Thus by means of our invention great facility is given for the heated gases and
products of combustion to part with their heat to the water contained in the varions
tubes, pipes and chambers and in this manner a rapid generation of steam is ensured
as well as a good circulation of water obtained, and a practically smokeless generator
is produced.
In the accompanying drawings
Figure 1 is a vertical longitudinal section of an apparatus constructed according
to this invention upon line 3 3 of Figure 3 wbich is itself a vertical cross section
upon line 11 of Figure 1.
Figure 2 is a plan upon line 2 2 of Figure 1.
Like letters represent like parts throughout the drawings.
A is the steam and water drum with which is connected the upper header B by
tubes B¹; the lower header C is also connected with the steam and water drum Å
by tubes while the two headers are connected by the ordinary inclined water
tubes D as will be well understood. E is the gas producer furnace provided with
grate bars El and a charging orifice E' controlled by a damper Es by an outside
lever E. The outer end E may be formed into a hopper closed by any suitable
lid or equivalent. Ashes, clinkers, etc. may be withdrawn from the chamber E by
the passage E closed by a suitable door E, while ashes may be withdrawn from
the ash-pit F by the passage F closed by a suitable door F. The gas producer
furnace E is jacketted so as to form a water space G which is connected by the
header G and tubes G with the header B previously described. The feed water
for the boiler may be introduced at any desired point, say into the lower part of
the drum A or into the space G as by a pipe H. I is the combustion chamber into
which the gases from the producer E are conducted by the conduits J conveniently
arranged one on each side of the producer while air to support combustion is
introduced by the passages K, preferably one at each side of the apparatus, which
may be formed in the brickwork or masonry, and terminate in openings K' opening
into the combustion chamber I and preferably each vertically above one of the
inlets J. These channels K are carried as shown in Figures 1 and 2 of the drawings,
for the greater part of their length through the ordinary side walls of the apparatus
and then across at right angles to their previous direction through the wall N
which forms the back of the combustion chamber I; by this arrangement the air
becomes well heated before it is discharged into the combustion chamber. However
either or both the air and gases may be introduced to the chamber I through a

page_text: grating or equivalent which would split them up into streamlets and if introduced
together intermix them. The flame and heated gases may be conducted around
the tubes D and to the chimney in any convenient or well known manner.
Lis the
mud drum connected by tubes L' with the lower header C, and by one or more
suitable pipes or conduits M with the water jacket G, by which means circulation
of the water may be facilitated.
The furnace E is as above set forth intended to be used chiefly as a means of
producing gases to be burnt in the combustion chamber I, but it will be understood
that it may be used as an ordinary furnace when it is not required to work the
boiler at its full capacity; in such case we may cut off the air supply of the
passages K, and allow the fuel in the producer to become incandescent throughout
when little gas would be produced and even that would not be ignited in the
chamber 1 for want of air. Nevertheless in regular work the furnace E is intended
to produce gas to be burnt in the combustion chamber I. A Korting or other
blower would be generally required to supply air or air and steam under the grate.
The supporting or enclosing brickwork, masonry, doors and fittings may, excepting
as herein otherwise described, be of ordinary construction for boilers of this class
and do not require detailed description here.
The details of construction may be modified according to circumstances without
departing from the spirit of this invention.
Having now particularly described and ascertained the nature of our said inven-
tion and in what manner the same is to be performed, we declare that what we
claim is :-
1. The combination with a water tube boiler of a water jacketted gas-producer-
furnace such as E the water space G of which is in communication with the interior
of the water tubes D substantially as described and illustrated in the accompanying
drawings.
2. In a water tube boiler the combination with a gas-producer-furnace such as E
of a combustion chamber into which the gases from the producer E are delivered
so as to meet or mingle with currents of air from the inlets K' substantially as
described and illustrated in the accompanying drawings.
3. In a water tube boiler the combination with the water tubes D and a gas-
producer-furnace E of side pipes or passages such as J carried in the side walls of
the apparatus and air passages such as K K' also carried in the side walls of the
apparatus and combined and operating substantially as described and illustrated in
the accompanying drawings.
4. In a water tube boiler the combination with the water tubes D of a jacketted
gas-producer-furnace such as E and a mud chamber L each independently connected
with the water tubes and connected together by a pipe such as M substantially as
described and illustrated in the accompanying drawings.
5. The combination with a water tube boiler of a gas-producer-furnace and
combustion chamber substantially as described.
6. The combination with a water tube boiler of a separate gas-producer-furnace
and combustion chamber in the same setting substantially as herein described.
7. The combination and arrangement of parts constituting the complete gas
producing water tube boiler substantially as described and illustrated in the accom-
panying drawings.
Thated this 02nd dar of February 180
GEO. H. TAYLOR.
W. P. Thompson & Boult,
Agents for the Applicants.