AN IMPROVED METHOD OF BURNING HYDRO-CARBON OILS, TOGETHER WITH STEAM OR WATER, FOR THE PURPOSE OF GENERATING HEAT FOR CALORIFIC AND DYNAMIC EFFECT
Year: 1881

page_text: LETTERS PATENT to Alfred Julius Boult, of the Firm of Wm. P. Thompson
and Company, Agents for Foreign Patent Solicitors, of 323, High Holborn,
London, in the County of Middlesex, 6, Lord Street, Liverpool, in the
County of Lancaster, and Berridge Street, Leicester, in the County of
Leicester, Engineer and Patent Agent, for an Invention of "AN IMPROVED
METHOD OF BURNING HYDRO-CARBON OILS, TOGETHER WITH STEAM OR
WATER, FOR THE PURPOSE OF GENERATING HEAT FOR CALORIFIC AND
DYNAMIC EFFECT." A communication from abroad by Charles Holland, of
the City of Chicago, in the County of Cook, in the State of Illinois, United
States of America.
"
PROVISIONAL SPECIFICATION left by the said Alfred Julius Boult at
the Office of the Commissioners of Patents on the 28th March 1881.
ALFRED JULIUS BOULT, of the Firm of Wm. P. Thompson and Company, Agents
for Foreign Patent Solicitors, of 323, High Holborn, London, in the County of
Middlesex, 6, Lord Street, Liverpool, in the County of Lancaster, and Berridge
Street, Leicester, in the County of Leicester, Engineer and Patent Agent.
AN IMPROVED METHOD OF BURNING HYDRO-CARBON OILS, TOGETHER WITH
STEAM OR WATER, FOR THE PURPOSE OF GENERATING HEAT FOR CALORIFIC AND
DYNAMIC EFFECT.' A communication from abroad by Charles Holland, of the
City of Chicago, in the County of Cook, in the State of Illinois, United States of
America.
"
This Invention is specially applicable to locomotive engines, steam fire engines,
and engines for marine propulsion, furnaces for the treatment of ores and metals,
and situations where in the application of heat, sparks, or ashes, or other deposit of
residium from the fuel is objectionable, and also wherever lightness and compactness
of fuel are desired, and is advantageous in being easily and instantly controlled and
regulated, and requiring no labor in stoking or firing.
The nature of this Invention may be briefly stated to consist in first passing the
oil and water through separate heated vessels or retorts, and raising them to a
temperature of ignition, and mixing them in a pipe from which they issue in jets
Гоміла 071

page_text: through converging heated nozzles in an enclosed combustion chamber or fire box,
in which the resultant gas burns and in which the retort or heating chambers are
located so as to render the operation continuous without requiring another fire or
other source of heat.
My Invention embraces among other features a series of separate retorts connected
by tubes and secured in position in the furnace, so that all surfaces are susceptible
of inspection, and less liable to strain from local contraction and expansion of parts
therein. The retorts are formed of several chambers in one casting, such as are
set forth in my Letters Patent.
In case of leakage in any of the retorts so assembled and connected there is no
risk of intercommunication with the other retort. The apparatus with slight
modifications is susceptible of a change of operation adapting it to the combustion
of hydro-carbon fluids, which would otherwise precipitate unconsumed carbon in
some of the retorts in which the hydro-carbon fluid is mixed with water or steam
before entering the retort.
"
This Invention will be.best understood by describing its application to one form
of boiler, and I will therefore now explain how it is applied to locomotive boilers.
The general design of the fire box and boiler is similar to the ordinary multi-
tubular locomotive boiler, the fire-box being by preference surrounded with water,
but almost any other efficient form of furnace either for steam generation or
metallurgic or other purpose may be substituted in making useful application of
this Invention. The floor of the furnace is composed of plates fitting closely to
each other, with proper provision for remaining close and tight without cramping
or distortion from unequal expansion and contraction; in the floor plates is formed
ɩ series of "tubulures" or jet pipes in the form of truncated hollow cones, the
smaller end upward, to admit, the vapours, gaseous or aeriform fuel, and the air
with which said fuel is burned, and to heat such air as it passes upward or inward
to the combustion chamber. The jet pipes are preferably arranged at equal
distances in parallel rows for the better distribution of the gas jets in the furnace,
and also for the more convenient connection of the gas supplying and distributing
tubes. In the centre of each of the "tubulures are jet tubes made preferably of
tips having small central conical apertures, and inserted in pillars or tubes fitted
air tight in elbows attached to the tubes which conduct the fuel of the "tubulures"
from suitable sinall retorts placed within the fire box, preferably at the front or
part furthest from the flue tubes. I prefer to construct these retorts in pairs of
different sizes, say, the two outside ones large, and the pipes from both uniting,
and the two insides ones smaller, and their pipes also uniting together. Pipes
lead from preferably the larger ones to one or more tanks or reservoirs containing
water or steam under pressure, and from preferably the smaller ones to one or
more vessels containing liquid hydrocarbon or oil under pressure, and serve to
introduce in regular quantities a supply of such fluid to the retorts. Suitable cocks
or valves are placed in these pipes to regulate or stop the supply to the retorts. As
it is important to preserve the heat of the pipes under the "tubulures," troughs or
casings are provided for this purpose; these may either be filled with nonconducting
material or not, as desired. The spaces also between the "tubulures
may if
desired be filled with nonconducting inaterial. A small cavity or basin is formed
in or upon the floor plates under one of the retorts; a pipe provided with a suitable
cock or valve from the oil reservoir leads into this. A damper or equivalent is
employed for closing off the air supply under the furnace floor.
"
The operation is as follows-A light is placed in the cavity in the floor of the
fire box or furnace, and a small amount of oil admitted to it through the pipe above
described. This ignites and heats the retort at the same time that a small supply
of water is allowed to flow into it, which issuing as steam from the pipe in the
top combines with the hydro-carbon issuing from the next retort to which a small
quantity has been admitted, and both travel together to the "tubulures” where.
carrying air with them they are burnt as fuel. At the same time that the gas is
delivered and ignited with the air entering the "tubulures" of the central plates

page_text: of the furnace, gas enters through tubes and jets under the other retorts which are
soon heated, and oil and water or steam are separately admitted to the other
retorts. As the temperature increases the flame in the furnace issuing from or
entering the "tubulures" from being at first of a yellow colour and luminous
becomes a clean blue or purple and transparent, and the entire furnace chamber is
filled with ignited gases of a very high temperature, and the issuing products of
combustion after passing through the boiler tubes or flues are invisible and almost
inodorous.
'
By means of the cocks or valves which for convenience of manipulation should
have indices and dials or notched sectors for the purpose of showing and holding
them in adjustment, the supply of fuel and temperature can be controlled to meet
the varying requirements of work.
The combined effect of steam or water passing into and through the retorts and
mingling with the products of oil or hydro-carbon distillation, and thence entering
into the enclosed combustion chamber, is with a very small fuel consumption to
generate a larger volume of heat of greater intensity, and in a more uniform and
reliable manner than is otherwise, so far as I am aware, practicable.
A modification consists in first passing the water or steam through the retorts,
and afterwards mixing or combining it with the hydro-carbon fluid, and then
passing such mixture into other retorts, from which the resultant products of
distillation pass to the jet tube where they are burned.
The flow of supplying fluid to the retorts may be automatically regulated by
means of a system of levers connected with diaphragms operated by variations of
fluid pressure in the boiler, or by a thermostat in the furnace.

page_text: SPECIFICATION in pursuance of the conditions of the Letters Patent filed
by the said Alfred Julius Boult in the Great Seal Patent Office on the
27th September 1881.
ALFRED JULIUS BOULT, of the Firm of Wm. P. Thompson and Company, Agents
for Foreign Patent Solicitors, of 323, High Holborn, London, in the County of
Middlesex, 6, Lord Street, Liverpool, in the County of -Lancaster, and Berridge.
Street, Leicester, in the County of Leicester, Engineer and Patent Agent.
"AN IMPROVED METHOD OF BURNING HYDROCARBON OILS, TOGETHER WITH
STEAM OR WATER, FOR THE PURPOSE OF GENERATING HEAT FOR CALORIFIC AND
DYNAMIC EFFECT.” A communication from abroad by Charles Holland, of the
City of Chicago, in the County of Cook, in the State of Illinois, United States of
America.
"
The following Specification and claims are exactly as communicated to me by my
foreign correspondent, with instructions to file.
This Invention is specially applicable to locomotive engines, steam fire engines,
and engines for marine propulsion, furnaces for the treatment of ores and metals,
and situations where in the application of heat, sparks, or ashes, or other deposit
of residium from the fuel is objectionable, and also wherever lightness and
compactness of fuel are desired, and is advantageous in being easily and instantly
controlled and regulated and requiring no labor in stoking or firing.
The nature of this Invention may be briefly stated to consist in first passing the
oil and water through separate heated vessels or retorts and raising them to a
temperature of ignition and mixing them in a pipe, from which they issue in jets
through converging heated nozzles in an enclosed combustion chamber or fire box,
in which the resultant gas burns and in which the retort or heating chambers are
located, so as to render the operation continuous without requiring another fire or
other source of heat. In conducting this process I employ an apparatus involving
a number of new and useful details and new and useful combinations of previously
known details, illustrated in the Drawing annexed and described in this
Specification, embracing among other features a series of separate retorts connected
by tubes and secured in position in the furnace, so that all surfaces are susceptible
of inspection and less liable to strain from local contraction and expansion of parts
therein. The retorts are formed of several chambers in one casting, such as are
set forth in my Letters Patent.
In case of leakage in any of the retorts so assembled and connected there is no
risk of intercommunication with the other retort. The apparatus, with slight
modifications, is susceptible of a change of operation adapting it to the combustion
of hydrocarbon fluids, which would otherwise precipitate unconsumed carbon in
some of the retorts in which the hydrocarbon fluid is mixed with water or steam
before entering the retort.
I will now proceed to describe more particularly and exactly the mode of
conducting this process and describe an apparatus for the purpose, referring in
so doing to the Drawing annexed and the letters of reference marked thereon.
The Drawing shows the Invention as applied to a locomotive engine.
Fig. I. shows a plan with the furnace roof or crown removed.
Fig. II., a section elevation in the plane indicated by the line X, X, in Fig. I.
Fig. III., a partial vertical section in the plane indicated by the dotted line Y, Y,
in Figs. 1 and 2.
Fig. IV. shows a side elevation with the side wall of the furnace removed.
Fig. V., a front elevation with the front wall of the furnace removed.
Fig. VI. shows the combining tubes in section on an enlarged scale.
Figs. VII, and VIII. shew a modification of the lower part of the furnace
drawn in the same planes of sectional elevation in Figures 2 and 3.
Figs. 9, 10, 12, 13, 14, 15, and 16, show enlarged sections of the parts of the
apparatus in detail.

page_text: Figs. 1ª, 2, 3, 4, and 7, show modifications adapted to burning bydrocarbons
by mixing steam or water therewith prior to distillation in the retort, so as to
diminish or avoid the precipitation and waste of carbon in the retort when
less volatile hydrocarbon fluids are employed, which modifications and their
operations are described after first describing the construction and operation of the
apparatus shown in the preceding Figures.
Figure 1b shows an elevation of an automatic regulating apparatus as applied to
a hydrocarbon furnace under or in a locomotive steam boiler.
Figure 2b shows a plan in the same application, and
Figure 3b, an end elevation thereof.
A represents the furnace or combustion chamber of a locomotive boiler; A¹, the
metallic wall of the fire box; A³, the surrounding water space; A³, the flues or
tubes leading to the chimney; A, the furnace crown; and A5, the crown bars.
This portion of the apparatus does not materially differ from that in general
use, and any other efficient form of furnace either for steam generation or
metallurgic or other purpose may be substituted in making useful application of
this Invention.
The floor of the furnace A is composed of plates B fitting closely to each other
with proper provision to remain close and tight without cramping or distortion
from unequal expansion and contraction; in the floor plates B are formed a series
of tubulures or jet pipes B' in the form of truncated hollow cones, the smaller end
being upward.
The function of these conical jet tubes B¹. is to admit the vapors, gaseous or
aeriform fuel, and the air with which the said fuel is burned, and to heat such air
as it passes upward or inward to the combustion chamber.
The jet tubes B¹ are preferably arranged at equal distances in parallel rows
for the better distribution of the gas jets in the furnace, and also for the more
convenient connection of the gas supplying and distributing tubes, as will hereafter
appear.
Centrally located in each of the tubulures B¹ are jet tubes C made preferably
of tips C, having small central conical apertures and inserted in pillars or
tubes C's fitted air tight in elbows C³ attached by tubes C* branching laterally from
pipes C³.
The pipes C are hermetically closed at the ends C and at the opposite ends are
inserted gastight into the pipes C and Cs; the pipes C³ are arranged horizontally
beneath the floor plates B in parallel position with cach other between alternate
lines of tubulures B', so that each pipe 05 supplies the lines of branches and jet
tubes C upon both sides thereof. The lower pipe C is larger than the upper
pipe C7 and supplies the fuel to the pipes C³ under the four outer floor plates B,
whilst the upper pipe C7 supplies only the two pipes C³ under the central pair of
plates B, and the short pipes C under the end of the four outer plates B toward
the right hand in Figs. 1 and 2. The short pipes C are placed above the pipes C³
under the outer plates B and supply by branches C jet tubes C extending upward
into the tubo B' under the retorts or generators D', D³; the tubes C° are closed at
their ends furthest from the pipe 07.
D and D¹ are retorts or generators, vessels placed a little distance above the
plates B and jet tubes B¹ over the outer floor plate B, and as close as may be
conveniently arranged towards the wall of the furnace; D³ and D* are smaller
retorts or generating vessels similarly placed above the jet tubes B' of the central
plate B. From the upper part of the central or smaller retorts D³ and D' are
tubes Ds and Do, which unite in the upper end of a combining tube E, shown in
section in Fig. 6, consisting of one jet pipe E¹ surrounded by another tube E³ and
having in common one delivery or discharge tube E³. The lower end of the
combining tube E is connected by a suitable tube E to the pipe or tube C7; a
similar series of pipes D and Ds connect from the upper part of the retorts D'
and D to another combining tube E, which is connected by a tube Es to the
pipe C³. The retorts D¹, D³, Ď³, D*, are supported upon pillars F and held thereon

page_text: by bolts F' extending through lugs F cast on the retort down through the
pillars F and plates B, where they are secured by a suitable nut F; the upper end
of the pillars are formed with jaws F5 for the purpose of embracing the lugs F
and better retaining the retorts in position.
"
The pillars F lugs F', jaws F, and bolts F¹ and nut F should be so fitted and
adjusted as to safely retain the retort in position without resisting the expansion
and contraction of the retorts D², D², D³, D³
Into the retorts D' and D² are fitted pipes C and C', provided with valves G³ and
G³ leading from a tank containing water or steam under pressure. These pipes C
and C¹ extend through the furnace wall A¹ and water space A³, and serve to admit
water or steam into the retort D' and D'.
Similar pipes H.and H', also extending through the furnace wall A¹ and water
space A, and provided with suitable valves or stops H' and H2, connect the retorts
D' and D with a vessel K containing liquid hydrocarbon or oil under pressure, and
serve to introduce in regulateable quantities a supply of such fluid to the retorts D³
and D.
Under each of the tubes C is placed a trough L, having perforations in the sides,
through which the branches (extend; the function of the trough L is to avoid or
intercept currents of air from cooling the pipes C³, and to retard radiation of heat
from the said pipes C5, and they may be filled, for the more effectual retention
of heat, with a nonconducting or slow conducting substance, as shown in
Figs. 7 and 8.
The spaces between the jets tubes or tubulures B', with the floor plate B, may be
similarly covered with nonconducting material, as shown in Figs. 7 and 8.
Upon the floor plates B, at the part under the retort D³, is formed a rim M
enclosing a small cavity or basin M³, into which a pipe N leading from the oil
reservoir, and provided with a suitable cock or valve N terminates. A damper P
or register for closing off the air supply under the furnace floor is fitted beneath the
troughs L.
The operation of the process with the apparatus is as follows:-
A lighted match is placed in the cavity M¹, and a small amount of oil admitted
through the pipe N is ignited therein, heating the retort D³; at the same time a
small supply of water is permitted to flow into the retort D³; next a small supply
of oil is admitted to the retort D. Steam generated and superheated issuing from
the upper part of the retort D³ passes by the pipe D to the combining tube E, where
it commingles or combines with the hydrocarbon issuing by the pipe D6 from the
upper part of the retort D, and passes down to the pipe C is distributed through
the pipe C³ through the jets C, carrying air with it through the tubulures B' in the
central floor plates B, B, and ignited in the furnace; at the same time the gas is
delivered and ignited with the air entering the tubulures B¹ of the central plates B
of the furnace, gas enters through the tube C through jets C under the larger
retorts D' and D³.
The ignited gas enters the furnace chamber with the air through the tubulures B¹
and floor plates, and thus heats the air at its entrance to the furnace chamber, and
very soon heats all of the retorts D¹, D, D³, D, in the furnace. When this takes
place oil is admitted to the retort D, and steam or water to the retort D'. As the
temperature increases the flame in the furnace issuing from or entering the tubulures
from being at first of yellow color and luminous becomes a clean blue or purple and
transparent, and the entire furnace chamber is filled with ignited gases of intense
heat; the issuing products of combustion after passing through the boiler flues are
transparent or invisible and almost inodorous.
By means of the valve G³, G³, H3 and H, which for convenience of manipulation
should have indices and dials or notched sectors for the purpose of showing and
holding them in adjustment, the supply of fuel and temperature can be controlled
to meet the varying requirements of work.
The combined effect of steam or water passing into and through the retorts and
mingling with the products of oil or hydrocarbun distillation, and thence entering

page_text: into the enclosed combustion chamber is, with a very small fuel consumption, to
generate a larger volume of heat of greater intensity and in a more uniform and
reliable manner than is otherwise practicable.
The modification shown in Figures 1ª, 2d, 3d, 4d, 74, 8ª, whilst similar in general
construction of the retorts and the jet tubes and distributing pipes for conveying
the products of distillation from the retorts to the place of combustion, differs in
construction in the arrangement of the tubes conducting the supply of hydrocarbon
fluid and steam or water to the retorts, and in operation in first passing the water
or steam through retorts, and afterwards mixing or combining it with the hydro-
carbon fluid, and then passing such mixture into other retorts, from which the
resultant products of distillation pass to the jet tube, where they are burned.
Upon reference to these Figures it will be seen from the upper part of the
central or smaller retorts Ds and D¹ are tubes D* and Dº, which unite in the upper
end of combining tubes E and E, shown in section in Fig. 6, consisting of one jet
pipe E¹, surrounded by another tube Es, and having in common one delivery or
discharge tube E. The lower ends of the combining tube E and E are connected
by suitable tubes to the retorts D' and D³. The combining tubes E and E receive a
supply of hydrocarbon fluid in a manner hereinafter described and shown, and
inject it with steam into the retorts D and D³. The products of distillation from
the retort D are conveyed by a pipe D' to the pipe C7, and the products of
distillation from the retort Ds by the pipe D³ to the pipe C8, whence they pass to
the jet tubes C and into the combustion chamber A.
Into the retorts D' and D' are fitted pipes C and C provided with valves G³ and
G³ leading from a tank containing water or steam under pressure. These pipes G
and G¹ extend through the furnace wall A² and water space A³, and serve to admit
water or steam into the retort D¹ and D².
Similar pipes H and H, also extending through the furnace wall A¹ and water
space A³, and provided with suitable valves or stops H' and H' connect the com-
bining tubes E and E with a vessel K containing liquid hydrocarbon or oil under
pressure, and serve to introduce in regulable quantities a supply of fluid with steam
from the retorts D¹ and D³ intimately mixed therewith in the combining tubes E
and E to the retorts D2 and D*.
The operation of the process with the apparatus as modified is as follows:-
A lighted match is placed in the cavity M', and a small amount of oil admitted
through the pipe N is ignited therein, heating the retort Ds; at the same time a
small supply of water is permitted to flow into the retort D³, generating steam
therein; next a small supply of oil is admitted to the combining tube E, where it
commingles with the steam and enters the retort D, and after distillation therein
passes down by the pipe D' to the pipe C, and is distributed through the pipe Co
through the jets C, carrying air with it through the tubulares B' in the central
floor plates B, B, and ignited in the furnace; at the same time the gas is delivered
and ignited with the air entering the tubulures B' of the central plates B of the
furnace, gas enters through the tubes Cº through jets C under the larger retorts D¹
and D*.
The ignited gas entering the furnace chamber with the air through the tubulures B¹
and floor plates thus heats the air at its entrance to the furnace chamber, and very
soon heats all of the retorts D¹, D³, D³, D4, in the furnace. When this takes place
oil is admitted to the retort D³ and steam or water to the retort D'. As the
temperature increases the flame in the furnace issuing from or entering the
tubulures from being at first of yellow color and luminous becomes a clear blue or
purple and transparent, and the entire furnace chamber is filled with ignited gases
of intense temperature.
The flow of supplying fluid to the retorts may be automatically regulated by
means of a system of levers connected with diaphragms operated by variations of
fluid pressure in the boiler, or by a thermostat in the furnace, as shown in Figures
1b, 2b, and 3b.
A represents a tank for containing fluid hydrocarbon placed on an elevation

page_text: sufficient to feed or force oil into the burning apparatus. The tank A is supplied
by the pressure of water from a tank B or a pump C, displacing the oil from a
larger tank D located below the tank A. The pump C may be operated by power
from an engine or other motor, or may be worked by a pendulum moved by the
oscillations of the car or tender upon the springs and axles. Any surplus of oil passes
into the tank A, overflows by a pipe E, and returns from the upper tank A to the
lower and larger tank D. A pipe F leads to the retort G, in which the oil is
vaporized prior to burning. In the pipo F is a valve H, which controls the flow of
oil from the tank A to the retort G.
The valve H is of such construction, proportions, and dimensions of parts that 1
after being closed it may be opened sufficiently to pass the greatest required
amount of fluid by turning the spindle J through an arc of from 60 to 120 degrees,
preferably about 90 degrees.
A lever K in the spindle J serves to turn the same; this lever K is angularly
adjustable on the spindle J, and is adjustable as to the radial length or distance 1
from the centre of the point of attachment L of the rod M, from which it receives
motion from the lever N operated by the diaphragm O, as shown in Figs. 1, 2,
and 3, be worked by fluctuations of steam pressure in the boiler P or by a
thermostat Q, as shown in Figs. 4 and 5 and 6, or a tube containing water exposed
to the heat, and operating a piston or diaphragm. The point of attachment of the 2
rod M to the lever N is adjustable, so that any required variations of motion may
be obtained from the same extent of motion of the diaphragm. The rod M is. made
adjustable in length, so that it may be adapted to different angular adjustments of
the lever K upon the valve spindle J.
A similar arrangement is shown, having its parts designated by the small letters 2
of the alphabet, to control the flow of water to the retorts and maintain the same
constant feeding pressure, and a third similar series of levers and connected parts
is used, the parts of which are designated by the same letter with a prime mark
added thereto for regulating the air supply.
By changing the angular adjustment of the levers K, k, and k² on their respective 3
spindles J,j, and j', the ratio of opening and closing of the several valves can be varied
during different pressures in the boiler or degrees of expansion in the thermostat,
so that the motion in one part of the movement of the valve may be accelerated
as compared with the motion in another part of the movement of the valve, and
by varying the lengths of the operative arms of the levers K, k, and k¹, and N, n,
and n; the feeding of all these fluids can be regulated automatically.
Figs. 17 to 20 are modifications illustrating the application of the Invention to
stationary boilers; further description of these Figs. is unnecessary.
3
Having described my Invention and the mode in which the same is to be
performed and operated, I do not wish to be understood as claiming broadly the 4
combustion of hydrocarbon oils in conjunction with jets of superheated steam or
the combustion of mixtures of air, steam, and bydrocarbon vapor or gas, but what
I claim as new, useful, and original of my Invention is,―
1st. In an apparatus for buring fluid hydrocarbons with steam and air, the com-
bination of two or more pairs of separate retorts so connected by tubes with a
hydrocarbon fluid and water supply, and with jet tubes, from which the resultant
gases or vapors and steam are burned, that one retort of each pair shall be supplied
with water or steam, and the other retort of each pair shall be supplied with
hydrocarbon fluid, and the gas or vapor and steam generated in the other pair or
pairs of retorts shall heat the furnace, substantially as and for the purpose set forth. 5
2nd. In an apparatus for burning hydrocarbon fluids with steam and air, the
combination of two or more parts of separate retorts heated by gases generated
therein, so connected by tubes with a hydrocarbon fluid and water or steam
supply, and with jet tubes, from which the resultant gases or vapors and steam are
burned, that one retort of each pair shall receive a supply of steam or water, and 5
shall, after superheating such steam, discharge it with a hydrocarbon fluid into the
other retort of the pair from which the resultant heated.gas and vapors pass to the

page_text: jet tubes at the points of combustion in the furnace, substantially as and for
the purpose set forth.
3rd. In an apparatus for burning hydrocarbon fluids with steam and air, the
combination of two or more pairs of separate retorts so connected with each other
and the steam or water supply and the hydrocarbon fluid supply and with the gas
distributing pipes and jet tubes or burners that the steam superheated in one
retort of one pair shall enter the second retort of said pair, and the gases or vapors,
or a portion thereof, generated in such second retort shall supply the heating jets
under both sets of retorts, substantially as and for the purpose set forth.
4th. In an apparatus for burning hydrocarbon fluids with steam and air, the
combination of separate retorts connected by pairs and delivering steam and hydro
carbon gas or vapors into the same pipe, a series of jet tubes delivering jets of
mixed steam and gas or vapor through conical air tubes leading into an enclosed
combustion chamber, substantially as and for the purpose set forth.
5th. In an apparatus for burning hydrocarbon fluids in combination with steam
and air, the combination of jet tubes delivering jets of mixed steam and gas or
vapor in a heated state with distributing pipes protected by troughs, and extending
into conical air tubes leading into an enclosed furnace.
6th. In an apparatus for burning hydrocarbon fluid with steam and air, the
construction and form of retort as shown, and adapted to be arranged in pairs and
held in position in a furnace by supporting pillars and lugs, substantially as and
for the purpose set forth.
7th. In combination with a series of separate retorts arranged in pairs in the
manner set forth for the burning of hydrocarbon fluid with steam and air, a
priming or starting pan located under one of the retorts or the pair of retorts,
supplying the heating jets to the retorts, substantially as shown and described.
8th. In an application for generating heat from vapors and gases generated
therein burned with steam and air, the combination of a small elevated supply
tank for introducing fluids therein continuously supplied from a larger supply tank,
substantially in the manner and for the purpose set forth.
9th. In combination with an apparatus for generating vapors or gases from
hydrocarbon and burning the same with steam and air, a valve for regulating the
supply of hydrocarbon fluid operated in an adjustable ratio by a pressure regulator
or thermostat as and for the purpose set forth.
10th. In an apparatus for generating steam and hydrocarbon vapors or gases
and burning the same together with air, the combination of a valve for regulating
the supply of water or steam to the retort operated in an adjustable ratio by
pressure regulator or thermostat as and for the purpose set forth.
11th. In an apparatus for generating steam and hydrocarbon vapor and burning
the same with air, the combination of a valve for regulating the air supply to the
combustion chamber operated in an adjustable ratio by a pressure regulator or
thermostat, as and for the purpose set forth.
12th. In an apparatus for burning hydrocarbon vapors or gases with steam and
air, a priming or starting with a supply pipe provided with an automatically
closing valve to prevent waste and accidental spilling, as and for the purpose set
forth.
In witness whereof, I, the said Alfred Julius Boult, have hereunto set my
hand and cool this Tantor fiunt doc. of Chin
T