Year: 1888

page_text: I, EDWARD BROOK, of Crescent House, Rashcliffe, Huddersfield, in the County of
York, Engineer, do hereby declare the nature of this invention to be as follows:-
This invention relates to improvements in gas producers.
According to one arrangement a gas producer of the kind in which a water channel
or jacket is included in the wall, has one or more tuyeres arranged to project from the
said water jacket into the fuel or fire. These tuyeres are kept cool by the water in
the jacket, and supply air under pressure to the central parts of the fire, while the
external portions of the fire receive air from the annular part of the ashpit under the
water jacket. This air is forced in by a steam blower or other convenient means. By
this arrangement combustion takes place evenly throughout the mass of fuel, and the
ashes are compelled to sink into the water base of the producer, having no other place
of lodgment. They can be raked out of the base as desired.
Across the water base, and, by preference, at about the water level, I place a cross
bar for the purpose of occasionally supporting temporary bars.
To facilitate the lighting of the fire or the complete removal of clinker and ashes
from the ashpit, I arrange an opening or a series of openings on two opposite sides of
the producer at, or a little above, the level of the cross bar, which openings are kept
closed when temporary bars are not inserted. To facilitate their closing it is convenient
to make them in the form of boxes with flap doors. Through these openings I pass
temporary bars of iron whose inner ends rest upon the cross bar-and I am thus
enabled to light the fire on a temporary grate and withdraw the same at pleasure.
Also when the producer is at work, the bars will support the fire whilst the clinker
and ashes are thoroughly cleaned out. I prefer the cross bar to a solid wall or
support, as I am enabled to push the poker, rake or shovel, underneath and through to
the other side, which a solid support would prevent.
According to a modification air is supplied to the central part of the fire, not through
tuyeres as set forth above, but from a hollow bar, bridge, or channel passing across the
lower part of the producer at about the water level. This bar, bridge, or channel

page_text: besides serving as an air inlet, fulfils the functions of the cross bar mentioned above.
It is open at the bottom which dips into the water, while at the top and sides it has
perforations or outlets for the emission of air, which is forced into it by a steam jet or
other blower.
The iron channel being open at the bottom, and only being partially immersed in
the water, allows any cinders or other solid matter that may fall into the perforations
to drop through on to the floor instead of choking up the passage-It also permits of
the poker, rake, or shovel being passed underneath it thus providing access to all
parts of the hearth as well as giving more space for the accumulation of ashes.
The fact that the channel is partly immersed in the water preserves it from being
injured by the heat of the fuel and prevents clinker sticking to it.
When the tuyeres are not employed the water channel or jacket in the wall may be
dispensed with in producers of medium size the lower part of the producer being
parallel or tapered inwards. With this form it is sufficient to inject the air solely by
the cross channel, and to dispense with a separate delivery of air near the periphery of
the producer.
The walls of the structure are of brickwork, cased with iron, the outlet for the gas
generated being situate at or near the top, whilst the opening or openings for cleaning
out the ashes, etc., are at the bottom, the gas or air being prevented from escaping by
means of the water lute and yet allowing the withdrawal of ashes or other matter.
Dated this 1st day of May 1888.
W. LLOYD WISE,
46, Lincoln's Inn Fields, London, W.C.,
Agent for the Applicant.

page_text: Improvements in Gas Producers.
I EDWARD BROOK of Crescent House Rashcliffe, Huddersfield in the County of
York, 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 :—
This invention relates to improvements in gas producers.
According to one arrangement a gas producer of the kind in which a water channel
or jacket is included in the wall, has one or more tuyeres arranged to project from
the said water jacket, into the fuel or fire.
These tuyeres are kept cool by the water in the jacket and supply air under
pressure to the central parts of the fire, while the external portions of the fire receive
nir from the annular part of the ash pit under the water jacket. This air is forced
in by a steam blower or other convenient means.
By this arrangement, combustion takes place evenly throughout the mass of fuel
and the ashes are compelled to sink into the water base of the producer, having no other
place of lodgment. They can be raked out of the base as desired. Across the water
base, and by preference at about the water level I place a cross bar for the purpose
of occasionally supporting temporary bars.
To facilitate the lighting of the fire or the complete removal of clinker and ashes
from the ash pit, 1 arrange an opening or a series of openings, on two opposite sides
of the producer, at or a little above the level of the cross bar, which openings are
kept closed when temporary bars are not inserted.
To facilitate their closing it is convenient to make them in the form of boxes with
flap doors. Through these openings I pass temporary bars of iron, whose inner ends
rest upon the cross bar; and I am thus enabled to light the fire on a temporary
grate, and withdraw the same at pleasure.
Also when the producer is at work, the bars will support the fire, whilst the
clinker and ashes are thoroughly cleaned out. I prefer the cross bar to a solid wall
or support (although I sometimes make use of the latter) as I am enabled to push
the poker, rake or shovel underneath and through to the other side, which a solid
support would prevent. According to a modification air is supplied to the central
part of the fire, not through tuyeres as set forth above, but from a hollow bar, bridge
or channel passing across the lower part of the producer at about the water level.
This bar, bridge or channel, besides serving as an air inlet fulfils the function of the
cross bar mentioned above. It is open at the bottom which dips into the water,
while at the sides it has perforations or outlets for the emission of air, which is
forced into it by a steam jet or other blower. The iron channel being open at the
bottom, and only being partially immersed in the water, allows any clinker or other
solid matter that may fall or run into the perforations to drop through on to the floor
instead of choking up the passsage.
It also permits of the poker, rake or shovel being passed underneath it, thus

page_text: providing access to all parts of the hearth, as well as giving more space for the
accumulation of ashes. The fact that the channel is partly immersed in the water
preserves it from being injured by the heat of the fuel, and prevents clinker sticking
to it. When the tuyeres are not employed, the water channel or jacket in the wall
may be dispensed with, the lower part of the producer being parallel or tapered
inwards.
With this form it is sufficient to inject the air solely by the cross channel, and to
dispense with a separate delivery of air near the periphery of the producer. The
walls of the structure are of brickwork cased with iron, the outlet for the gas
generated being situated at or near the top, whilst the opening or openings for
cleaning out the ashes etc. are at the bottom, the gas or air being prevented from
escaping by means of the water lute and yet allowing the withdrawal of ashes or other
matter.
The accompanying drawings shew gas producers according to my invention.
Figs. 1 and 2 on sheet 1 being respectively an elevation partly in section and a
sectional plan of one arrangement.
Figs. 3 and 4 on sheet are similar views of a modification of the apparatus ;
and
Figs. 5 and 6 on sheet 3 both represent in sectional elevation, further modifications
thereof.
Referring to Figs. 1 and 2 W is the water jacket or channel provided with the
tuyere T which projects into the fire and admits air thereto by the internal pipe
extending through the water jacket to the outer air, where it may be connected to
the annular blast chamber B under the water jacket, or be provided with its own steam
blower. B is the annular blast chamber, having air supplied to it by the steam
blower S, and from which chamber the air passes into the fire urging combustion in
the outer portion of the same. C is the central cross bar or air channel, extending
from side to side across the centre of the producer, and upon which the points of the
temporary bars shewn in dotted lines rest when inserted for the purpose of holding
up the fire. This cross bar or channel is partly immersed in the water at the bottom
and is thus kept cool, while clinker is prevented from sticking to it. 0, 0, are the
openings or slots for the passage of the temporary bars, and are closed by the swing
flaps or doors D, which also close the openings for removal of ashes and clinker.
The doors D are swung or hinged at the top, and their lower edges dip into and are
luted by the water at the bottom.
When desired, the tuyere T may be dispensed with, the air being then admitted
to the centre of the fire through the crossbar C, which is perforated near the centre
so as to ensure the air being passed into the fire at that point, as shewn in Figs. 3
and 4 on sheet 2, where it will be noticed the annular water jacket W and the tuyere T
are absent, the whole of the air for combustion being passed into the fire through
the central cross bar or air channel C by means of the side openings E at the centre,
as indicated by the small arrows. These openings E are purposely placed near the
centre, so as to keep the air away from the side walls, and to cause it to pass through
the body of the fire. The water on the floor seals the bottom of the cross bar or air
ohannel C, and thus prevents the air from escaping into the fire at any point,
excepting through the openings E. One end of the cross bar or channel is con-
nected through the side of the producer with an ordinary steam jet blower S. The
ashes and clinker collect in the water upon the floor of the producer, and are removed
from time to time through the doorways D, D, the temporary bars being inserted
meanwhile through the slots or openings 00 whenever requisite.
Figs. 5 and 6 on sheet 3, are two further modifications, both having the central
cross bar or air channel C cooled by water as previously described but the floor of the
producer is not covered with water, the fire resting directly upon the brick base.
In Fig. 5 a small channel A is formed in the base so as to connect the water
troughs M, M, at the outside, with the water trough under the air channel C. The
lower edges of the doors D D dip as before described, into, and are luted by the
water, whereas in Fig. 6 these doors are entirely out of water.

page_text: Having described the nature of my said invention, and in what manner the
same is to be performed, I hereby declare that what I consider to be novel and
original, and therefore claim in a gas producer is:
1. The combination of a water channel or jacket W a tuyere T or tuyeres projecting
therethrough, a water bottom and an annular blast chamber B substantially as
described.
2. The combination with a central metallic cross bar or air channel of a water base.
substantially as described.
3. A central metallic cross bar or channel cooled by water and arranged to admit
air to the fire substantially as described.
4. The combination of a central air conduit a channel with cleaning out doors hinged
or swung at the top and whose lower edges when closed dip into and are luted by
water substantially as described.
5. The combination with a central metallic cross bar or with a central air channel
and a water base of cleaning out doors or flaps whose lower edges when closed are sealed
or luted by water, substantially as described.
6. I also claim; the improved arrangement of gas producer substantially as shown
in and described with reference to Figs. 1 and 2 of the drawings annexed, with or
without the projecting tuyere T.
7. The improved arrangements of gas producers substantially as shown in and
described with reference respectively to Figs. 3 and 4, to Fig. 5 and to Fig. 6 of the
drawings annexed.
Dated this 29th day of January 1009.
W. LLOYD WISE,
46, Lincoln's Inn Fields, London, W.C.,.
Agent for the Applicant.