IMPROVEMENTS IN REGENERATIVE GAS HEATING ARRANGEMENTS FOR HEATING WATER OR AIR, ALSO APPLICABLE FOR HEATING STEAM BOILERS AND FOR OTHER PURPOSES
Year: 1883

page_text: LETTERS PATENT to Edwin Ambrose Brydges of the firm of Brydges & Co.
Engineers and Patent Solicitors of 107 Königgrätzer Str. in the City of Berlin
and German Empire and of 6 St. Leonard's Terrace, Upton in the County of
Middlesex, for an Invention of IMPROVEMENTS IN REGENERATIVE GAS
HEATING ARRANGEMENTS FOR HEATING WATER OR AIR, ALSO APPLICABLE FOR
HEATING STEAM BOILERS AND FOR OTHER PURPOSES Communicated to him
by David Grove, Sanitary Engineer, of the City of Berlin aforesaid
"
PROVISIONAL SPECIFICATION left by the said Edwin Ambrose Brydges
at the Office of the Commissioners of Patents on the 4th January 1883.
EDWIN AMBROSE BRYDGES of the firm of Brydges & Co Engineers and Patent
Solicitors of 107 Königgrätzer Str: in the City of Berlin and German Empire and
of 6 St. Leonards Terrace Upton in the County of Middlesex. " IMPROVEMENTS
IN REGENERATIVE GAS HEATING ARRANGEMENTS FOR HEATING WATER OR AIR,
ALSO APPLICABLE FOR HEATING STEAM BOILERS AND FOR OTHER PURPOSES a
communication to me from David Grove Sanitary Engineer of the City of Berlin in
the German Empire.
This Invention relates to improvements in regenerative gas heating arrangements
for heating water or air and is also applicable for heating steam boilers and for
other purposes.
The gases produced in the generator pass through a suitable connection pipe into
the flue or channel, from here they pass through the narrow orifices of the
burner into the combustion chamber where they come into contact with warmed
atmospheric air.
After the mixture of gas and air has been ignited by means of a gas jet or a rag
impregnated with petroleum or other suitable means, for which purpose an ignition
hole is made use of the burning gases stream through the cast iron canals or flues
in a serpentine direction from one pipe into the other and then pass through the
flue into the chimney.

page_text: The air for the combustion is heated in the interior of suitable canals or
chambers. This said air enters through two openings which can be closed or altered
in size and continues in a serpentine direction from one chamber into the other
until it issues from the top chamber through several small orifices provided for that
purpose and serves to promote the combustion of the regenerative gas.
These said air heating flues or chambers aro lined with refractory material and
the air is caused to circulate through them by the draught produced by the chimney
or stack.
A skyhole for the purpose of observing the flame is arranged, by means of which
air can be admitted above the burner or slot to the flame which is done by drawing 1
over the closing or stopping piece.
The cast iron canals Blues or pipes which heat the air for the rooms are provided
with a large number of ribs in order to present to tlie cold air passing through the
flue to the heating chamber the greatest possible heating surface.
E
Besides this the said cast iron canals flues or pipes are provided at the ends with 1
projections or shoulders, which said shoulders or projections are not fixed in brick-
work, but are laid loosely in sand in order to admit of expansion and contraction
taking place consequent upon the important changes of temperature.
In order to prevent the top air heating canal or pipe from becoming red hot,
Σ
which would render the air in the air chamber deleterious to health, the upper
air heating canals or pipes are lined with fireclay or other suitable refractory
material.
A water receptacle or dish is situated within the air warming chamber, the
purpose of which is to supply the necessary amount of moisture to the warmed
air, before the same reaches the dwelling apartments through the conducting flues.
This said receptacle or dish is kept supplied with water by means of another
similar receptacle, which is situated outside the air warming chamber.
This latter receptacle is fed by a suitable water pipe, which said pipe is in
connection with the water main.
By means of a suitable connecting pipe or tube, the two vessels or receptacles
act as communicating pipes so that the height of the water in the vessel in the
interior of the air heating chamber can be ascertained by means of the water glass
on the receptacle situated outside the said air heating chamber.
In order to avoid the necessity of putting the whole apparatus out of operation
when repairs have to be done a reserve furnace is arranged and in this case the air
heating chamber can be heated by a direct fire.
The construction of the gas generator is as follows.
The fire bars are arranged stair like and terminate in an ordinary level grate
which is provided with a slide for removing cliukers suitably arranged pieces of
angle iron serve to carry the said clinker slide.
The filling shaft or funnel can be closed during the operation of filling by a trap
or falling door. This trap door is fixed on a suitable shaft or axle and is raised or
lowered by the turning of the latter.
The filling shaft can also if desired be closed tight at the top by means of a
cover and water joint in order to prevent the gases from escaping during the
filling.
The connection pipe is provided with a throttle-value in order to regulate or cut
off the exit or production of gas.
A safety valve provided with a water joint is also arranged on the aforesaid
connecting pipe, the purpose of which is to permit of the free and dangerless exit
of the gas when the throttle valve is closed and the slide door is opened by accident
or carelessness. This is effected by the cover being pressed off by the force of
the gas.
The burner is made of fire clay gannister or other suitable refractory material
and moves on small rollers; projections running in corresponding grooves enable
the burner stone to move or be slid regularly.
The arrangement of the apparatus for heating water by means of regenerative

page_text: gas is as follows: The generator gases pass through the connecting pipe to the
first canal or flue, which said canal or flue is in communication with a tarpit.
From this canal or flue the gases reach the second canal or flue and from here
they pass through the long opening of the burner direct into the heating or
combustion chamber. As the gases reach or enter the combustion chamber, they
are thoroughly mixed or combined with the heated atmospheric air, which issues
from the orifices of the top air warming chamber.
The pipes through which the water to be heated circulates are arranged in the
interior of the combustion chamber in suitable coils, around which said coils the
gases or flames plug, heat the water in the said coils and afterwards escape into
the chimney or stack.
The chambers or canals for heating or warming the air for combustion are made
in this case of wrought iron.
The air enters through suitable openings, which can be altered in size or closed,
into the bottom canals or chambers proceeds then upwards in a serpentine direction
and issues through several small orifices immediately above the burner where it
serves to promote the combustion of the regenerative gases.
The construction of the burner for this arrangement is quite similar to the burner
used for heating or warming air.

page_text: SPECIFICATION in pursuance of the conditions of the Letters Patent filed by
the said Edwin Ambrose Brydges in the Great Seal Patent Office on the
4th July 1883.
EDWIN AMBROSE BRYDGES of the firm of Brydges & C° Engineers and Patent
Solicitors of 107 Koeniggraetzer Str in the City of Berlin and German Empire
"IMPROVEMENTS IN REGENERATIVE GAS-HEATING ARRANGEMENTS FOR HEATING
WATER OR AIR, ALSO APPLICABLE FOR HEATING STEAM BOILERS AND FOR OTHER
PURPOSES," a communication to me by David Grovo, Sanitary Engineer of the City
of Berlin aforesaid
This Invention relates to the employment of regenerative gas for the purpose of
heating air or water.
Figure 1 of the accompanying drawings shews a plan of the complete arrange-
ment for heating air Figure 2 a section through A. B. in Figure 1. Figure 3 a
section through C. D in Figure 1. Figure 4 shews the generator on a scale of 1/10
Figures 5 and 6 shew the construction of the sliding burner for heating air.
Figure 7 shews a longitudinal section of the heating or combustion chamber for
water heating. Figure 8 is a cross section of the same. Figure 9 shows the
sections through A. B. and C. D in Figure 7. Figure 10 is a side view. Figure 11
is a rear elevation. Figure 12 is the top view and partial section of the sliding
burner when employed for water heating.
The gases produced in the generator A (Figure 1) pass through the pipe a into
the flue or channel a', from here they pass through the narrow orifices of the
burner b into the combustion chamber a where they come into contact with
warmned atmospheric air. After the mixture of gas and air is ignited by means of a
gas jet or a rag impregnated with petroleum or any other suitable means, the
burning gases stream through the cast iron canals or Hlues a³ a a³ in a serpentino
direction from one pipe into the other and then enter into the chimney a7 through
a suitable opening. The air for the combustion is heated in the interior of the
canals or chambers c¹ c² c3 c c and d¹ d³ d³ d. This said atmospheric air passes
through two openings which can be closed or altered in size (and of which the one
is in connection with the space c' and the other in connection with the flue d¹)
and continues in a serpentine direction through the air heating canals or flues
which are lined with refractory material until it passes out from the top
chambers c d through several small orifices (Figure 1) provided for the purpose
and serves to promote the combustion of the generative gas.
The draught for this current of air is caused by the chimney or shaft.
a (Figure 3) is a spy hole for the purpose of observing the flame by means of
which air can be admitted above the burner or slot to the flame; which is done
by drawing over the closing piece a7.
The cast iron canals or flues a³ a* a³ are provided with a large number of ribs
in order to present to the cold air passing through the fluef to the heating
chamber g, the greatest possible heating surface. Besides this the said cast iron
tubes or flues are provided at the ends with projections or shoulders e and as
shewn in the drawings these ends or projections are not fixed in brickwork, but
are laid loosely on sand in order to admit of expansion and contraction taking
place; consequent upon the changes of temperature.
In order to prevent the upper air canal or pipe from becoming red hot; which
would render the air in the air chamber deleterious to health, these upper canal
or flues are lined with fire clay or other suitable refractory material. A wate
receptacle h is situated within the air warming chamber g, the purpose of which i

page_text: to supply the necessary amount of moisture to the warmed air before the same
reaches the dwelling apartments through the conducting canals or flues ii. This
said water receptacle h is kept supplied with water by another similar receptacle K
which is situated outside the air warming chamber.
This latter receptacle K is fed by a suitable water pipe K' which is in connection
with the water main. By means of the connection pipe or tube K³ the two
vessels or receptacles act as communicating pipes so that the height of the water
in the inner vessel h can be ascertained by means of the water glass K³ arranged
on the outer receptacle K.
In order to avoid the necessity of putting the whole apparatus out of operation
when repairs have to be done a reserve furnace B (Figure 1) is arranged and in
this case the air warming chamber 7 can be heated by direct firing.
The construction of the gas generator is shown in Figure 4.
Z is a step grating which terminates in an ordinary level grate and provided
with a slide for removing the clinkers, the top view of which is shown in
Figure 4.
are pieces of angle iron which carry the clinker slide.
The filling shaft or funnel m can be closed during the filling by a trap or
falling door.
This trap door is fixed on the shaft or axle m² and is raised or lowered by the
turning of the latter. The filling shaft can also if desirable be closed with a cover
and water joint in order to render it thoroughly tight and to prevent the gases
from escaping during the filling. The connection pipe n is provided with a throttle
valve. n in order to regulate or cut off the exit or production of gas. A safety
valve n' provided with a water joint is also arranged on the pipe n the purpose of
which is to permit of the free and dangerless exit of the gas when the throttle
valve and the slide door o are opened by accident or carelessness. This is effected
by the cover being pressed off by the force of the gas. The construction of the
sliding burner for air heating or warming is shown in Figures 5 and 6. This
burner is made of fire clay gannister or other suitable refractory material and
slides on small rollers. Projections p' which run in suitable grooves enable the
burner to move or be slid regularly. Figures 7 and 8 show the arrangement of an
apparatus for heating water by means of regenerative gas. The generator gases
pass through the connecting piper to the canal or flue which said canal or fluo
is in communication with a tar pit . From this canal or flue 71 the gases reach
the second canal or flue and from here they pass through the long opening of
the burner C direct into the heating or combustion chamber -As the gases reach
or enter the heating or combustion chamber they are thoroughly mixed or combined
with the heated atmospheric air which issues from the orifices of the top air
warming chamber: The pipes through which the water to be heated circulates
are arranged in the combustion chamber in suitable coils around which said coils
the gases or flames play, heat the water in the said coils and escape eventually into
the chimney.
-
The chambers canals or pipes for heating the air for combustion v to vª and
u to u are made in this case of wrought iron. The air enters through the
openings v and 7 which said openings can be altered in size or closed, into the
bottom canals or chambers 6 and u proceeds then upwards in a serpentine
direction and issues through several small openings immediately above the
burner, where it serves to promote the combustion of the generative gases. The
construction of the burner for this arrangement is shown in Figures 10-12 and is
quite similar to the burner used for heating or warming air.
Having now described my said invention and the manner in which the same is
to or may be carried into effect I wish it to be understood that what I claim and
desire to secure by Letters Patent is :-
1. The arrangement and employment of a sliding burner (Figures 5 and 6 and
10 to 12) in a generator gas firing or furnace which said sliding burner is so
constructed that the generator gases, shortly before the admittance of air, have

page_text: to pass through a long slit or opening substantially as described in the foregoing
specification and shown in Figure 1 of the accompanying drawings.
2. The arrangement construction and employment of the combustion chamber a³,
Figure 3, which is surrounded on two sides by the air canals or chambers c¹ to c
and d' to d' which said canals or chambers are made of chamotte or other suitable
material and from which the air, heated in the same escapes immediately above
the burner 6 in order to promote the combustion of the gases substantially
as described in the foregoing specification and shown in the accompanying
drawings
3. The arrangement construction and employment of the ribbed canals or tubes
a³ a a³, in combination with the projections or flanges e¹ which are laid loosely in
sand in order to admit of the expansion and contraction of the pipes, whereby
all danger of bursting of the same is prevented substantially as described in the
foregoing specification and shown in the accompanying drawings.
4. The arrangement construction and employment of the adjustable burner b b
at the upper part of the air heating canals 'v' for water heatings (figure 7) in
combination with the air canals which lead the said air upwards so that the highly
heated air escapes immediately above the burner and is thoroughly intermixed
with the gas substantially as described in the foregoing specification and shown in
the accompanying drawings.
5. The general construction and arrangement of the parts in the said regenerative
gas firing or furnace substantially as described in the foregoing specification and
shown in the accompanying drawings.
In witness whereof I the said Edwin Ambrose Brydges have hereunto set my
hand and seal this twentyninth day of June in the year of our Lord One thousand
eight hundred and eighty-three.
Witnesses
ANTHONY STEFFEN
E STUTZER
EDWIN A BRYDGES (L.S.)