IMPROVEMENTS IN APPARATUS TO BE APPLIED TO STEAM BOILERS FOR BURNING LIQUID FUEL
Year: 1873

page_text: LETTERS PATENT to William Robert Lake, of the Firm of Haseltine,
Lake, & Co., Patent Agents, Southampton Buildings, London, for
the Invention of "IMPROVEMENTS IN APPARATUS TO BE APPLIED TO STEAM
BOILERS FOR BURNING LIQUID FUEL."-A communication from abroad
hundonial Duandfont
Canada Contlaman
PROVISIONAL SPECIFICATION left by the said William Robert Lake
at the Office of the Commissioners of Patents, with his Petition,
on the 20th February 1873.
I, WILLIAM ROBERT LAKE, of the Firm of Haseltine, Lake, & Co.,
Patent Agents, Southampton Buildings, London, do hereby declare the
nature of the said Invention for "IMPROVEMENTS IN APPARATUS TO BE
APPLIED TO STEAM BOILERS FOR BURNING LIQUID FUEL," a communication, to
be as follows:-
According to this Invention liquid fuel, such as coal oil or petroleum,
is burned under a pressure of air from one pipe that supplies the sup-
porter of combustion, and under pressure of air from another pipe upon

page_text: the hydrocarbon which is used as the combustible. The air and the oil
being forced together from different directions are thus brought into
contact and closely intermingled, and the combustion is made complete,
uniform, and perfect.
I use a steam boiler having an ordinary steam dome with a safety
valve, and a tank or receptacle for coal oil, petroleum, or other liquid fuel.
A pipe from an air pump enters the tank; a flame chamber is constructed
in the boiler; and a pipe leads from the fuel tank to the said flame
chamber and jet pipes from the said pipe enter the flame chamber.
Another pipe from an air pump enters the flame chamber and is pro-
vided with a cock to regulate the pressure of air, a pipe curving upwards
from the flame chamber above the water line in the boiler and returning
below the water mark extends the length of the boiler and returns. It
is perforated with holes, increasing in size and number towards the end.
of the pipe. Concave projections from the boiler are fixed over the said
curved pipe to act as deflectors to the water cast up by ebulitions within
the boiler. Deflectors are also placed in the dome to throw back water
driven into the same. A self-closing valve in the pipe keeps the water
in the boiler from contact with the flame chamber when pressure is cut
off from the air pump; an air-tight door in the flame chamber opens
inwardly, and has a latch to fasten the same.
I use a mud drum with a cock to relieve the boiler, when required,
and cocks are arranged in the pipes leading from the air pump and oil
tank to regulate the pressure of air and supply of fuel. An air-tight
door is fitted in the fuel tank, opening inwardly and secured with a latch;
the tank is also provided with an indicator of glass for showing the
amount of fuel and the rapidity of the feed.
filed by the said William Robert Lake in the Great Seal Patent
Office on the 19th August 1873.
TO ALL TO WHOM THESE PRESENTS SHALL COME, I, WILLIAM
ROBERT LAKE, of the Firm of Haseltine, Lake, & Co., Patent Agents,
Southampton Buildings, London, send greeting.

page_text: WHEREAS Her most Excellent Majesty Queen Victoria, by Her
Letters Patent, bearing date the Twentieth day of February, in the
year of our Lord One thousand ceight hundred and seventy-three, in the
thirty-sixth year of Her reign, did, for Herself, Her heirs and successors,
give and grant unto me, the said William Robert Lake, Her special
licence that I, the said William Robert Lake, my executors, adminis-
trators, and assigns, or such others as I, the said William Robert Lake,
my executors, administrators, and assigns, should at any time agree with,
and no others, from time to time and at all times thereafter during,
the term therein expressed, should and lawfully might make, use,
exercise, and vend, within the United Kingdom of Great Britain and
Ireland, the Channel Islands, and Isle of Man, an Invention for
"IMPROVEMENTS IN APPARATUS TO BE APPLIED TO STEAM BOILERS FOR BURNING
LIQUID FUEL," a communication to me from abroad by Frederick Proud-
foot, of Toronto, Canada, Gentleman, upon the condition (amongst
others) that I, the said William Robert Lake, my executors or adminis-.
trators, by an instrument in writing under my, or their, or one
of their hands and seals, should particularly describe and ascertain
the nature of the said Invention, and in what manner the same was:
to be performed, and cause the same to be filed in the Great Seal
Patent Office within six calendar months next and immediately after
the date of the said Letters Patent.
NOW KNOW YE, that I, the said William Robert Lake, do hereby
declare the nature of the said Invention, and in what manner the same
is to be performed, to be particularly described and ascertained in and
by the following statement, reference being had to the accompanying
Drawing, forming a part of this Specification:-
According to this Invention coal oil, petroleum, or other liquid fuel,
or inflammable gas is burned under pressure of air in an air-tight com-
bustion chamber inside a steam boiler. The liquid fuel or gas is
contained in an air-tight tank, and forced into the air-tight combustion
chamber through a tube or tubes connecting therewith by means of air
pressure from an air pump, or hydrostatic pressure from a force pump,
exerted upon the liquid fuel or gas within the tank.
The fuel or gas is forced into the flame chamber by pressure of water.
The liquid fuel or gas being so forced, the flame or combustion chamber
is supplied with compressed air, entering the chamber by means of tubes
from an air pump.

page_text: Figure 1 is a longitudinal vertical section of a steam boiler embodying
this Invention, and showing the fuel tank connected with the same.
Figures 2, 3, 4, and 5 are vertical sections thereof drawn to a reduced
scale, shewing modifications of the jets and arrangement of feed pipes.
A is a steam boiler having an ordinary steam dome and safety valve;
C is a tank or receptacle for coal oil, petroleum, or other liquid fuel or
inflammable gas; C¹ is a pipe from an air pump or water force pump
entering the tank C at or near its top when air pressure is employed to
force the fuel to the combustion chamber; but when water is used the
pipe should enter or be continued down to near its bottom, so that the
fuel will be borne upward by its pressure; in the latter case the feed
pipe D should leave the tank from near its top. This arrangement is
shewn by dotted lines in the Drawing. C2 is an air-tight flame or com-
bustion chamber in the boiler A; D is the feed pipe leading from the
fuel tank to the flame chamber; F, F, F, are jets in the pipe D entering
the flame chamber.
In Figures 2, 3, 4, and 5 are shewn modified arrangements of the jet
and air tubes. E is a pipe from an air pump entering the flame
chamber C³; I is a cock in the pipe E to regulate the pressure or supply
of air; G is a pipe curving upwards from the flame chamber above the
water line in the boiler, branching down below the said water line, and
extending from end to end of the boiler on each side of the flame
chamber. The branches O are perforated with holes P, increasing in
size and number towards the end of each branch.
B, B, are projections from the sides of the boiler curving downwardly
over the branch pipes O to act as deflectors to throw back water cast up
by ebulition within the boiler; B² are deflectors in the dome to throw
back the water driven into the same.
His an automatic valve in the pipe G hinged at top to open outwardly
to pass the products of combustion under pressure. This valve by its
own weight closes to prevent water in the boiler having contact with
the flame chamber when pressure is cut off from the air pump; K is an
air-tight door in the flame chamber opening inwardly, and provided with
a latch for fastening when closed; K' is an ordinary mud drum with a
cock to relieve the boiler when required; I, M, M', are cocks in the

page_text: pipes of the air and feed tubes to regulate the pressure of air and tho
supply of fuel.
N is an air-tight door in the fuel tank, opening inwards and secured
with a latch. The tank is also provided with an indicator N of glass-
to shew the quantity of fuel and the rapidity of feed to the fire.
The mode of operation is as follows:-The air is forced into the tank C·
by the pipe C', and thereby the liquid fuel or gas is driven up through
the pipe D, so that it is emitted in jets from the pipes F into the flame
chamber C³. It there meets a corresponding supply of air, which has
been forced through the pipe E. The hydrogen burns as fast as supplied,
and the heat and other products of combustion are carried through the
flame chamber through the pipe G and branches O, and are discharged
into the water in the boiler.
When water pressure is used it is forced by a pump into the tank
through the pipe C', and causes the hydrocarbon fuel to press upward
against the top of the tank and be ejected into the feed pipes which con-
nect with the tank near the top, and thence pass to the jets F to be
consumed.
Referring to Figure 2, the air pipe E enters the boiler below the water
line, and has one or more jets F leading from it to the flame chamber.
Inside of the air pipe is arranged the liquid fuel or gas feed pipe, which
also has jets leading to the flame chamber through the air pipe; thus
the air and fuel meet at the point of the jets where combustion takes
place. This arrangement may be modified by forcing the air through
the inner, and the oil through the outer pipe.
Referring to Figure 3 the separate air and oil pipes enter below the
water line, and have one or more jets which unite at the nozzle and
commingle the air and oil while combustion is progressing.
Referring to Figure 4 the air and oil unite outside the boiler, and air
and oil are forced together through perforations in the main pipe which
leads directly into the flame chamber. The part of this pipe within the
flame chamber is made of some incombustible material, such as soap-
stone.
Having thus fully described the said Invention as communicated to
me by my foreign correspondent, and the manner of performing the
same, I wish it understood that I claim.—
:

page_text: First. The air-tight tank C and supply and feed pipes C¹, D, arranged
as herein set forth, in combination with the air-tight flame chamber C³
and pump, whereby the flame chamber is supplied with liquid fuel or
gas under pressure of either air or water, in the manner as set forth.
Second. In combination with the tank C and flame chamber C the
arrangement of the feed pipe D entering the boiler below the water line
and having jets F, as and for the purpose set forth.
Third. The arrangement and combination of the jets F, feed pipe D,
and air pipe E, whereby the fuel and air commingle in the flame chamber
at or near the point of ignition, as herein described.
Fourth. The application to the tank C of the water tube C¹ and a
force pump for feeding the fuel to the combustion chamber C³ under
water pressure, as herein set forth.
Fifth. The combination of the supply pipo C¹, tank C, feed pipe D
having jets F, air pipe E, and submerged branch pipes O with the flame
chamber and boiler, and a force pump for feeding liquid fuel or gas and
air under pressure for combustion, as herein set forth.
Sixth. Providing the curved pipe G with a self-acting valve H,
operating as and for the purpose set forth.
Seventh. The jets F, F, F, formed by the air and feed pipes arranged a
in the modified forms shewn, in combination with a flame chamber C³,
as and for the purpose set forth.
In witness whereof, I, the said William Robert Lake, have here-
unto set my hand and seal, this Nineteenth day of August
in the year of our Lord One thousand eight hundred and seventy- 2
three
Witness,
JAS. EDWARDS,
8, Southampton Buildings.
W”. ROB³. LAKE. (L.S.)