Improvements in or Appertaining to Appliances for Burning, Hydrocarbons.
Year: 1889

page_text: Date of Application, 2nd July, 1889
Complete Specification Left, 29th Apr., 1890-Accepted, 28th June, 1890
Improvements in or Appertaining to Appliances for Burning,
Hydrocarbons.
A communication from abroad by JOHN WILSON, of New York City, County, and
State; and ALLAN MASON, of Brooklyn, in the County of Kings, and State of
New York, United States of America.
1. WILLIAM PHILLIPS THOMPSON F.C.S. M.I.M.E. of the Agency for Foreign
Patent Solicitors, 6, Lord Street Liverpool and 6, Bank Street Manchester, both in
the County of Lancaster, & 323 High Holborn in the County of Middlesex, Civil
Engineer, do hereby declare the nature of this invention to be as follows:-
These improvements relate to contrivances for burning hydrocarbons (petroleum
and other oils and fatty substances, gases and vapours etcetera) in steam boiler and
other furnaces and the objects of the several improvements are:
.First. To simplify and cheapen the combustion of hydrocarbons for heating purposes
in the generation of steam and the various other purposes for which furnaces aro
used in the arts and manufactures, and to facilitate the adjustment of such con-
trivances to furnaces, to the end that the operation renewal or repair thereof may be
easily and quickly accomplished.
Second. To arrange such contrivances so as to bring about the vapourizing of the
hydrocarbons in advance of their issue from the burners and to effect the conjunc-
tion of the burners so as to produce more effective combustion of the hydrocarbon
fuel.
Third. To improve the construction and arrangement of retort hydrocarbon burners
for boiler and other furnaces with the object of providing more effectual burners and
facilitating the application of such burners to fire-boxes and furnace chambers
of common form and to those already in use without material alteration
contrivance.
or
Fourth. To arrange for regulating the supply of the hydrocarbon fuel, when such
contrivances are adapted to inject the hydrocarbon fuel in marine boiler furnaces
where the rolling of the vessel causes irregularity of the flow from the feed pipe.
Fifth. To produce or effect a more intimate and uniform admixture of the atoms
of combustible elements in hydrocarbon injecting apparatus for furnaces.
and
Sixth. To produce a simple and efficient ejector burner attachment adapted for
being applied to a furnace by merely setting it in position before the same
connecting it with the furnace doorway, and arranged for being as readily detached
simply by removing it whenever it may be desired to resort to coal or otlier like fuel,
or for replenishing a coal fire wheń a hydrocarbon fuel is used in connection therewith
in the furnage.
Seventh. To provide improved contrivances of the injecting and spraying apparatus
for introducing hydrocarbon fuel into furnaces and combining the atoms of com-
bustible elements for the purpose of effecting a more perfect combustion.
Eighth. To produce an improved contrivance of the inlet pipe for the combined oil
and steam or oil air and steam of an injector burner for utilizing said pipe as a retort
to more effectually vapourize or gasify the oil previous to the issue at the burner, and
so as to effectually prevent lodgment or deposition of any carbon or other matters in
the pipe.
To produce the first object of the invention a tube is provided for the body or shell
of the burner and as an inlet for the air that supports combustion, and a burner tube
is centrally fitted therein and secured in any suitable manner; the said air tube
or shell being open its entire length except as obstructed by the said inner tube

page_text: and being constructed and adapted to connect at its outer end with the front plate
or door of the furnace, and the inner tube being closed at its outer end, which
is preferably located a short distance within the outer end of the exterior tube. In
the head of the inner tube is fitted a detachable and adjustable injector tube having
an adjustable and detachable nozzle cap on its inner end in which is an issue orifice
for controlling the jet and for introducing the oil it is preferable to connect the oil
feeding tube through the upper side of the burner tube so that the oil may drip on
the tip of the nozzle and the flow into or on the jet of steam or steam and air at
the issue, whereby it is expected to obtain the best results in spraying and mixing the
oil and steam for effective combustion. But the oil may be introduced further back.
By making the injector tube adjustable it can be shifted back and forth relatively to
the burner for regulating the action.
Secondly. It is proposed to inject the fuel elements of hydrocarbon and air through
retort pipes entering the furnace chamber in one or more pairs from the sides or front
as preferred, and arranged to traverse the chamber backward nearly to the rear wall
and thence forward again to the front, the nozzles being arranged to discharge
crosswise of the furnace and in opposition to each other so that conflicting jets of
vapours generated in the retort pipes and projected one into the other at the point of
combustion will burn with greater intensity through the better admixture of the atoms
of the combustible elements. The outer end of each retort pipe should have a funnel
mouth to favour induction of air and oil through the influence of a steam or
compressed air jet from an injector nozzle entering said mouths and supplied by a
suitable feed pipe.
Thirdly. The retort hydrocarbon burner designed to provide more effectual burners
and facilitate the application of them to fire-boxes and furnace chambers of common
form, consists in its essential feature of an arch-shaped pipe retort located in the back
part of the furnace chamber with a forwardly projected burner pipe and means for
injecting the fuel elements of oil vapour or gas and air into said retorts for combining
heating and vapourizing or gasifying them and distributing them to the burner issues
along the burner tubes. The means of introducing the fuel may consist of a supply
pipe arranged along over the furnace grate, or a large retort pipe in the upper part
of the fire chamber, or a couple of retort pipes extending along the sides of the
chamber preferably entering the fire door, and having injector attachments at the
outer open end, comprising the usual injector burner apparatus, iz., a combining and
injecting tube receiving a jet of steam from a pipe entered into it from the boiler and
also receiving a supply of oil from an oil feed pipe ctecture. The arch retort may
have a base member extending from foot to foot when a feed pipe is employed or said
pipe may be branched and connect with each foot of the arch. The arch and base
section when used, should be detachably connected to facilitate introducing the retort
into the fire chamber.
The retort is constructed with pipe sockets adapted for connecting with the burner
pipes after being put in place. The burner tubes connect with the retort in the back
and hottest portion of the chamber and extend forward along the side walls and under
the crown and being perforated at intervals make a burner of great power and
uniform distribution of heat. In the lower burner tubes the issues are directed
laterally towards the side walls to take effect low down and they are gradually less
diverged in the tubes above to distribute the flames and heat radially to the axis of
the arch. If desired gas burner tips may be attached to the orifices in the burner
tubes. The arch retort being merely placed on the fire grate for a seat is sustained in
its position by the feed pipe, or, the retort pipes when used, which latter either rest
on the grate or are supported at the front in the front wall or plate of the furnace.
and said arch holds the burner tubes in their position above the fire grate, hence no
special provision is required for applying this apparatus to the furnace and it can be
taken out readily by disconnecting the parts and removing them separately.
Fourthly. In this contrivance for burning hydrocarbons in marine boiler furnaces
the oil steam and air are mixed or combined in a mixing chamber prior to entering

page_text: the furnace, said mixing chamber consisting of a tube inserted about midway of its
length in the fire door or furnace plate and having its ends open and curved
upward, also having an oil feed pipe discharging into it outside the furnace and a
steam nozzle introduced a certain distance from its outer end, whereby the oil from
the feed pipe is combined with air entering the mixing chamber by the indrawing
effect of the steam injected into and through the chamber from the steam nozzle, for
combustion at the issue end of the chamber in the furnace. Said mixing chamber
stands level when the ship is steady, but when rolling it sometimes has a downward
pitch towards the fire chamber, which augments the flow of the oil and causes over
feeding and at other times an upward pitch that lessens the feeding while the quantity
of steam and air entering the furnace is the same, thus interfering with even
combustion and heating. To remedy this the oil feed pipe is provided with a regu-
lating cock having a pendulum regulator for automatically shifting it, which cock
and pendulum are adjusted to partly close the passage through the pipe to regulate
the flow of oil when the mixing chamber is level, close it more when the pitch is
downward, but open it wider when the pitch is upward, thus automatically regulating
the feeding, as the ship rolls. The mixing chamber is also arranged to prevent
the outflow of any oil that may fail to be ejected by the steam jet and also with
means for obstructing the ejecting of the oil until broken into spray by the jat. The
bottom is also perforated inside the furnace chamber as a further means of causing
the discharge of the atoms in spray, and their issue in divisional jets into the
combustion chamber.
Fifthly. The contrivance for effecting more intimate and uniform admixture of the
combustible elements in hydrocarbons is more particularly for burning hydrocarbon
gas or vapour or other gases produced before and delivered to the burner in a
vaporous or gaseous condition from a retort arranged in the waste heat passage, to
and in which the oil is fed and vaporized or gasified on its way to the burner.
A gas or vapour nozzle is provided closed or partly so at its inner end, but perforated
laterally and also closed at the outer end with which a gas or vapour supply pipe
is connected, and through which lengthwise a compressed air jet pipe is arranged
with its nozzle projected a little beyond the inner end, and this gas or vapour nozzle
is arranged in the air inlet pipe, suitably projected in the furnace chamber from the
front plate for the induction of the air by the suction of the steam jet so as to mix
and combine effectually with numerous jets of vapour or gas issuing from the sides
of the gas nozzle. For more effectual impingement of the air on the gas or vapour
jets, in some cases branches to the air inlet pipe for directing, the air obliquely on the
jets are provided. Steam is supplied to the injector from the boiler, and hydrocarbon
vapour is supplied through a retort pipe carried into the heat flue from
reservoir, coiled therein and extended through the same and the furnace to the
burner in any arrangement most suitable for vaporizing the oil, while passing through
it to the burner. The retort pipe is franged in a continuous inclination to prevent
the lodgment of carbon or other matters upon it. Whilst steam will generally be
used in the injector for producing the blast, it is to be understood that compressed
air may be substituted for it.
an oil
Sixthly. Another form of the contrivance specially adapted for applying to the
furnace by merely setting it in position before the same and in connection with the
furnace doorway, and for as ready removal whenever it may be desired to resort to
coal or the like fuel, or for replenishing a coal fire, when oil is used therewith.
For this purpose a portable stand or bench is provided preferably with vertically
adjustable legs and on it the burner is arranged, a hood or casing being used to
surround and partly enclose the burner and having a nozzle that enters the fire door
and a collar or pipe thimble to close the space between the hood and the sides of the
doorway. The hood also preferably having an enlarged and perforated middle section
and a funnel shaped outer end. In this hood the burner is arranged consisting of
a small central mixing and combining tube enclosed by a larger tube, with a steam

page_text: jet nozzle located in the combining tube and an oil feed pipe arranged to deliver the oil
so as to drip on the nozzle and break up into small particles as it flows into or upon
the jet of steam issuing from the nozzle said steam nozzle and oil feeder preferably
having connection with the boiler and an oil reservoir, respectively, by means of
flexible pipes, thereby allowing the burner stand to be shifted without detaching the
pipes so that when it is desired to use the hydrocarbon in conjunction with a coal.
fire, the burner may be shifted out of the way and back again when the coal is to
be replenished etcetera.
In place of the stand the apparatus may be suspended by a suitable contrivance.
Seventhly. A further modification of the contrivances consists of an air inlet tuhe
preferably having a funnel on one end and an oil feed pipe connection in the side
near the funnel, which tube is put in the door or front plate of the furnace with the
funnel end outside, securing the same in any suitable manner and preferably with
the feed pipe connection inside the front plate, but it may be outside. The said pipe
connection has a funnel mouth opening into the tube. In the air inlet an injector
nozzle is provided suitably directed to impinge the steam jet for drawing in oil and
air and spraying the oil on an inclination just below the top of the pipe connection
as an effective means of breaking up the oil for advantageous admixture with air and
steam, and also for projecting the steam and combined elements in an upward direc-
tion in the range of another injector nozzle, discharging more directly into the
furnace chamber, and adapted to mutually increase the intermixture of the atoms of
the different elements and thereby ensure more perfect combustion.
Eighthly. In the further development and application of these improvements in
hydrocarbon burners it is preferable to use two inlet retort pipes (but more may be
used according to circumstances), said pipes having funnel openings preferably to
facilitate induction of air by the steam injectors, and the hydrocarbon fuel also and
which is delivered into the steam nozzle for injecting into the retort pipe with the
proper quantity of steam and air. These pipes enter the furnace, say at the top of
the door way, and extend backward either directly or sinuously and inclined backward
towards the crown of the furnace, the issues of the pipes being at the front and
when two or more pipes are used the issues are turned crosswise of the furnace and
towards each other, if but one is used, it is preferably turned backward, but in this
invention it is intended to use two pipes generally, locating one on each side of the
doorway, and arrange them reversely with respect to their sinuosities so that their
issues will be in opposition. But more than two pipes may be used, care being taken
to arrange them in pairs and in different planes. This arrangement of the pipes
produces a very thorough and effectual vaporization and admixture of the fuel
elements, but for still greater results in some cases an additional pipe may be
employed preferably placed about midway between and arranged substantially like
the other two and with its issue forward of and midway between the issues of the
other two pipes so that the three issues form a triangle. This arrangement is found
very effectual and productive of the best results in respect of combustion and for
heating and gasifying the fuel elements passing through the pipes.
Whilst the sinuous arrangement of the pipe or pipes preferred the invention is
not confined to that arrangement of them as the direct arrangement may be substi
tuted with good results. An important feature of this invention is the terminal
issue of each in the burner nozzle lying in the plane of the rest of the pipe and
without upward turn so that no coking of the less volatile matters and choking of
the issues are liable to occur as when there is an upward escape of the gaseous
products.
1
1000

page_text: COMPLETE SPECIFICATION.
Improvements in or Appertaining to Appliances for Burning
Hydrocarbons.
A communication from abroad by JOHN WILSON, of New York City, County, and
State, and ALLAN MASON, of Brooklyn, in the County of Kings, and State of
New York, United States of America.
I, WILLIAM PHILLIPS THOMPSON, F.C.S., M.I.M.E., of the Agency for Foreign Patent
Solicitors, 6, Lord Street, Liverpool and 6, Bank Street, Manchester, both in the
County of Lancaster, and 323, High Holborn in the County of Middlesex, Civil
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 consists of improved contrivances for effecting more intimate and
uniform admixture of the atoms of combustible elements in hydrocarbon-injecting
apparatus, as hereinafter fully described, reference being made to the accompanying
drawings, in which-
Figure 1 is a sectional elevation of a boiler-furnace having a hydrocarbon-burner
of the improved contrivance; and Figure 2 is a longitudinal sectional elevation of
the burner on an enlarged scale, and with an additional device which is sometimes
employed.
C
The improvements in this case are more particularly designed for burning hydro-
carbon gas or vapor, or it may be other combustible gases, produced before and
coming to the burner in a vaporous or gaseous condition, as from a retort, preferably
arranged in the waste-heat passage, to and in which the oil is fed and vaporized or
gasified on its way to the burner. A gas or vapor nozzle a is provided, closed, or
mainly so, at the inner end, though preferably having a few small direct issues bi
thereat, with other lateral issues through the sides along it for some distance back
of the inner end, and also closed at the outer end, with which is connected the gas
or vapor supply pipe and through which lengthwise is arranged the steam or
compressed air jet pipe e, with its nozzle f projected a little beyond the inner end,
and this nozzle is arranged in the air-inlet pipe g, suitably projected into the furnace-
chamber from the front plate i, for the induction of the air by the suction of the
steam-jet, so as to mix and combine effectually with the numerous fine jets of vapor or
gas issuing from the sides of the gas-nozzle.
For the more effectual impingement of the air on the gas or vapor jets, in some
cases Y branches are provided to the air-inlet pipe for directing the incoming air
obliquely on the gas or vapor jets, in which case the outer end of the air-inlet pipe
may be closed or not, as preferred, by which oblique impingement still more intimate
admixture of the atoms is effected.
The injector-pipe e is preferably fitted through the inner end of the gas or vapor
nozzle by a screw-joint, and in the outer end of said nozzle it is fitted by a
detachable bush k.
Steam is supplied to injector e from the boiler by the pipe and the hydrocarbon-
vapor is in this example supplied through the retort-pipe d, coiled in the heat-fluen
and extending along in the same and through the furnace to the burner in any
approved arrangement most suitable for vaporizing the oil, which is to be fed into it
above the coil by any approved contrivance. The retort-pipe is arranged in a
continuous descending inclination to prevent the lodgment or deposition of carbon or
other matters in it.
:
While steam will generally be used in the injector for producing the blast, it is to
he understood that compressed air may be employed. if desired. The retort-pipe may
of course be coiled lower down, as, for instance, in the furnace-chamber-as well."
The invention also consists of improvements in the construction and arrangement
of retort hydrocarbon-burners for boiler and other furnaces, which are designed to
provide more efficient burners and to facilitate the application of them to fire-boxes

page_text: .
and furnace-chambers of common form and to those already in use without alteration
of them or additional contrivance, all as hereinafter fully described, reference being
made to the accompanying drawings, in which:-
Figure 3 is a transverse sectional elevation of a locomotive-boiler furnace with the
improved retort-burner apparatus applied to it. Figure 4 is a horizontal section of
the same and plan view of the burner apparatus. Figure 5 is a longitudinal sectional
elevation of the same with the burner apparatus in side elevation and with a retort
feed-pipe arranged over the burner, and Figure 6 is a horizontal section of a
stationary-boiler furnace and plan of the burner apparatus with retort feed-pipes
arranged along the sides of the furnace-chamber.
t
The essential feature of the invention consists of the arch-shaped pipe-retorta,
located in the back part of the furnace-chamber 6, with the forwardly-projected
burner-pipes and means for injecting the fuel elements of oil, vapor, or gas and air
into said retort for being combined, heated, and vaporized or gasified therein and
distributed to the burner-issues along the burner-tubes and radiating from the axis
of the arch. Said means of introducing the fuel elements may consist of a supply-
pipe d, arranged along on the furnace-grate e, as in Figures 3 and 4, or a larger
retort-pipe f in the upper space, as in Figure 5, or a couple of retort-pipes g,
extending along the space, one each side, as in Figure 6, all preferably entering the
fire-doorway and having injector attachments at the outer open end, comprising the
usual injector-burner apparatus, as the combining and injecting tube h, receiving a
jet of steam from the pipe, and also receiving a supply of oil from the oil-feed pipe j.
Other means of feeding the oil and air into the retort may be employed. The
retort may have a base member a¹, extending from foot to foot, when the feed-
pipe is employed, or said pipe may have a branch connecting it with each foot of
the arch. The archa and the base-section a' will be detachably connected at k, when
said base-section is used, to facilitate the introduction of the retort through the fire-
doorway of a furnace already built.
The retort is constructed with pipe-sockets. Zadapted for connecting the burner-
pipes after being put in place in the furnace, and also with sockets or according
as the retort-pipes for are to be used, enabling them to be likewise put in
separately and then connected for the ready application of the apparatus to
furnaces in use.
The burner-tubes, connecting with the arch-shaped retort in the back part and
hottest portion of the chamber and extending forward along the side walls and under
the crown-sheet of the furnace of a locomotive or other like arch-shaped furnace, and
being perforated for burner-issues at intervals, make a burner of great power and
very uniform distribution of the heat.
In the lower burner-tubes the issues are directed laterally toward the side walls to
take effect low down on them, and they are gradually less divergent in the tubes
above to distribute the heat radially to the axis of the arch. If desired, gas-burner
tips may be attached to the burner-tubes in lieu of the mere issue-orifices and they
may have issues or burner-tips at the front ends..
The arch-retort, being merely placed on the fire-grate for a seat, is sustained in its
upright position by the feed-pipe or the retort-pipes for g, either lying on the
fire-grate or supported at the front in the front wall or plate of the furnace, and
said arch holds up the burner-tubes in their position above the fire-grate by their
connection with it and without other support for them, so that no special provision is
required for the application of the apparatus to the furnace, and it can be taken
out readily by disconnecting and removing the parts, leaving the furnace ready for
burning coal or other fuel, as usual.
The burner-tubes may have a cock 7 at or near the junction with the retort, to be
set for regulating the flow of vapor into them when it has been found that the vapor
inclines more to one than another, as may sometimes occur.
It will be noted that the improved burner apparatus may be very readily taken
apart from time to time for cleaning out the matters depositing in the parts.
When the retort is arranged in the furnace represented in Figure 6, it may bo

page_text: fitted with hand-holes at 4, that may be reached through openings s in the furnace
walls for clearing it without removing it from its position.
The invention also consists of a contrivance for producing a simpler and more
efficient injector burner attachment adapted for being applied to the furnace by merely
setting it in position before the same and in connection with the furnace doorway and
for being as readily attached simply by the removal of it whenever it may be desired'
to resort to coal or other like fuel again or for replenishing a coal fire when oil is used
therewith, all as hereinafter fully described, reference being made to the accompanying
drawing, in which—
Figure 7 represents a sectional elevation of the improved detachable burner and a
boiler furnace to which it is applied as for use.
A portable stand or bench is provided preferably having vertically adjustable
legs b, and the burner is arranged on it, a hood or case being used to surround and
partly enclose the burner, and having a nozzle d to enter the fire doorway e and a
collar or pipe thimble f to close the slack space around the nozzle, also preferably
having the enlarged and perforated middle section y and the funnel shaped outer
end h, in which hood is arranged the burner consisting of the small central mixing
and combining tube and the larger surrounding tube, with the steam jet nozzlek,
located in the combining tube, and the oil feed pipe arranged to deliver the oil so as
to drip on the nozzle and break up into small particles as it flows into or upon the jet
of steam issuing from the nozzle, said steam nozzle and oil feeder preferably having
connection with the steam boiler and the oil supply tank », respectively, by means
of flexible pipes and, allowing the burner stand to be shifted without detaching
the pipes, so that, when it is desired to use the hydrocarbon in conjunction with
a coal fire, the burner may be conveniently shifted out of the way and back again
when the coal fire is to be replenished or when it may be desirable to shift said
burner for any purpose, but the burner may be connected by rigid metallic pipes
except when it is desired to shift it. The hood affords protection to the burner
as well as support and facilitates the induction of the air for promoting combustion
besides closing the portions of the doorway opening exterior to the burner, it also
prevents excessive radiation of heat from the burner both by the cooling effect of
the air drawn in from its outer end and by drawing the surrounding air through its
perforations; the induction of which through the perforations is facilitated by the
enlargement of that portion of the hood.
18
Any approved form of injector burner apparatus may be employed such as
adapted for burning hydrocarbon fuel generally, the invention not being limited to the
particular contrivance of burner herein shown.
The special advantage of this device is the simple and ready application of a
hydrocarbon burner to the exterior of the furnace without any fitting whatever as
against the common contrivance of fitting the apparatus in the furnace.
Instead of flexible pipes, the equivalent device of metallic pipes having swing joints
allowing the burner to he shifted may be employed.
The burner may be slung or suspended by chains or rods instead of being mounted
on a bench if desired.
Having now particularly described and ascertained the nature of the said inven-
tion and in what manner the same is to be performed, as communicated to
by my foreign correspondents, I declare that what I claim is:-
me
1. The combination, in a hydrocarbon burner, of the steam or compressed air
pipe, the surrounding gas or vapor pipe having the lateral orifices, and the air
inlet tube open at the outer end, having the additional diagonal V branches,
substantially as described.
2. The combination, with a boiler or other furnace, of the arch-shaped retort
set in the back part of the furnace chamber, the burner tubes connected with said
retort and extending forward therefrom in said chamber and having burner orifices
radiating from the axis of the arch, a feed pipe, and injector apparatus adapted

page_text: for injecting the fuel elements into said feed pipe and retort, substantially as
described.
г
3. The combination, with a boiler or other furnace, of an arch-shaped retort having
a base retort section and set in the back part of the furnace-chamber, the burnier-tubes
connected with said retort and extending forward therefrom into said, chamber, a feed
pipe, and injector apparatus adapted for injecting the fuel elements into said feed-pipe
and retort, substantially as described.
4. The combination, with a boiler or other furnace, of an arch-shaped retort located
in the back of the furnace-chamber and having a retort feed-pipe extending along the
furnace-chamber from the front, also having the burner-tube's extending along the
furnace toward the front and having burner-orifices radiating from the axis of the arch,
and the injector apparatus adapted for injecting the fuel elements into said retort-pipe
and therethrough to the retort, substantially as described.
5. The combination, with a boiler or other furnace, of an arch-shaped retort located
in the back part of the furnace-chamber, a retort feed-pipe extending along cach
side of the furnace to and connected with said retort, the burner-tubes connected
with and extending forward from said retort and having burner-orifices radiating
from the axis of the arch, and injector apparatus connected with the retort-pipes and
adapted for injecting the fuel elements into said retort-pipes and therethrough to the
retort, substantially as described.
6. The combination with a furnace of the portable stand, the enclosing case mounted
on the stand and having a nozzle entering the furnace door, the collar closing the
space around the nozzle, the injector burner enclosed in said case and the flexible
pipes connecting the oil feeder and steam nozzle of the burner with the boiler and oil
tank respectively, substantially as described.
7. The combination with a furnace of the portable and vertically adjustable stand,
the enclosing case, mounted on the stand, and having the nozzle entering the fire
door, the collar closing the space around the nozzle, the injector burner enclosed
in said case, and the flexible pipes connecting the oil feeder and steam nozzle
of the burner with the boiler and oil tank respectively, substantially as
described.
8. The combination with a furnace of the portable and vertically adjustable
stand, the enclosing case having the enlarged and perforated middle section and
the nozzle entering the doorway, the collar closing the surrounding space, the
injector burner enclosed in said case and the flexible pipes connecting the oil
feeder and steam nozzle of the burner with the boiler and oil tank respectively,
substantially as described.
Dated this 26th day of Auril 1800
WM. P. THOMPSON & Co.,
Agents for the Applicant.