in Boilers and for similar Purposes.
Year: 1885

page_text: in Boilers and for similar Purposes.
JAMES TAYLOR, Engineer, Walkinshaw, Paisley, ALLAN STEWART, Brassfounder
14 Victoria St Glasgow, CHARLES STEWART, Brassfounder, 14 Victoria St Glasgow,
we the above named do hereby declare the nature of our invention for BURNING
TAR, OILS AND LIQUID FUELS FOR THE PURPOSE OF RAISING STEAM IN BOILERS
AND SIMILAR USES, to be as follows:-
In carrying out this invention a pipe conveys liquid fuel, Tar or Oil from a tank
or other reservoir placed in a suitable position, to an apparatus placed in front of a
Boiler Furnace or combustion chamber, when the invention is applied to heating
Steam Boilers.
The apparatus consists of a hollow body made of Iron or Gun Metal or other
suitable metal having a projecting boss or pap bored and screwed for the purpose
of being connected with the pipe which conveys the liquid fuel, the position of the
boss is about the middle of the body.
A nozzle of copper is screwed into one end of the body at which end the nozzle
has a wide trumpeted entrance, nearest the body and tapers to a much smaller
diameter at about a third of its length when the bore swells out and forms a
globular chamber. A slot is cut across the end of the nozzle and into the globular
chamber and forms an outlet of an oblong section. A second nozzle to convey
steam (made of Gun Metal) is screwed into the body at the end opposite to that
which carries the copper nozzle. The steam nozzle passes nearly through the
whole length of the body, and enters some distance into the wide end of the copper
nozzle.
The inner end of the steam nozzle is tapered so as to leave a free space all
round the point of the steam nozzle where it is inserted into the copper nozzle.
A steam pipe is connected to the outer end of the steam nozzle and the supply of
steam is regulated by a cock or valve in any convenient position.
The supply of liquid fuel is regulated by a valve or cock suitably placed on the
supply pipe to which pipe also is screwed a branch pipe to which is attached a cock
for the admission of atmospheric air.
The action or working of the apparatus may be described as follows.
When the apparatus is placed in position and the connections made to supply it
with Air, Tar or other liquid fuel and steam, and the several cocks or controlling

page_text: valves opened, a jet of steam rushes through the steam nozzle and acting on the
liquid fuel which occupies the hollow space of the body in a manner similar to the
action of the well known Steam Injector, draws the Liquid fuel and a proportion
of air, and the steam, fuel, and air, becomes thoroughly mixed in the Globular
Chamber of the copper nozzle and is ejected through the oblong outlet as a highly
inflamable mixture into the furnace where complete combustion ensues without
either smoke, smell or ashes.
What we specially claim as our invention is the apparatus described for the
purpose of producing a highly inflamable mixture of Liquid Fuel, Air, & Steam,
and ejecting such mixture by an outlet or orifice of oblong section into a combustion
chamber or Furnace for Heating Steam Boilers or other like purposes.
JAMES TAYLOR.
ALLAN STEWART.
CHARLES STEWART.

page_text: Apparatus for Burning Tar and Heavy Oils for Raising Steam
in Boilers and for similar Purposes.
JAMES TAYLOR, Engineer, Walkinshaw Paisley N.B. ALLAN STEWART, Brass-
founder 14 Victoria Street, Glasgow N.B. and CHARLES STEWART 14 Victoria Street
Glasgow N.B. Brassfounder do hereby declare the nature of our invention for
IMPROVEMENTS IN APPARATUS FOR BURNING TAR AND HEAVY OILS FOR RAISING
STEAM IN BOILERS AND FOR SIMILAR PURPOSES and in what manner the same is
to be performed, to be particularly described and ascertained in and by the
following statement :—
In carrying out our invention a pipe conveys the liquid fuel which may be either
tar or oils from a tank or other reservoir placed in any suitable position to an
apparatus placed at the front of a boiler furnace or combustion chamber, for the
purpose of raising steam.
And in order that our said invention and the manner of performing the same
may be properly understood we here unto append a sheet of explanatory drawings
to be hereinafter referred to.
The same reference letters being used to mark the same or like parts, wherever
they are repeated.
Fig. 1 on the accompanying drawing is an elevation, Fig. 2 is a sectional
elevation, and Fig. 3 shows a simple and convenient application of our apparatus
to the furnace of a steam boiler.
The apparatus consists of a hollow body A made of any suitable metal having
a projecting boss or pap B bored and screwed for the purpose of being connected
with a pipe which conveys the liquid fuel to the apparatus.
A nozzle C of copper or other suitable metal is screwed into one end of the
body A at the end next the body A the nozzle C has a trumpeted entrance and
tapers to a much smaller diameter at about a third of its length, where it swells
out and forms a globular chamber A slot D is cut across the outer end of the
nozzle C into the globular chamber which slot forms the outlet and is of an oblong
section A second nozzle E to convey steam is screwed into the other end of the
body A the steam nozzle E passes nearly through the whole length of the body A
and enters some distance into the trumpeted end of the nozzle C The inner end of
the steam nozzle E is tapered so as to leave a clear space all round so as to allow
of the steam and fuel becoming properly mixed.
A pipe is connected to the outer end of the steam nozzle E and the supply of
steam can be regulated by a cock or valve (H) placed in any suitable position,
Fig. 3 shows our apparatus applied to a steam boiler, the supply of liquid fuel is
regulated by a cock F placed on the supply pipe, to this supply pipe is connected a
branch pipe fitted with a cock G to regulate the supply of atmospheric air, air may
also be admitted through a regulating valve in the furnace door in combination
with the branch pipe or singly. Figs. 4 and 5 show a part side elevation and end
view of two different modifications of how the slot (D) or slots may may be cut in
the nozzle (C).

page_text: The action of the apparatus may be described as follows. When it is placed in
position and connections made with the several pipes and regulating valves or cocks
a jet of steam rushes through the nozzle (E) and acting on the tar or oils which
occuppy the clear space in hollow body (A) in a manner similar to the steam
injector draws the liquid fuel and a suitable proportion of air into the globular
chamber at the outer end of the nozzle (C) and is then ejected through the oblong
slot or slots (D) into the furnace or combustion chamber where being ignited
complete combustion ensues, without either smoke or refuse.
Having now particularly described and ascertained the nature of our said
invention and in what manner the same is to be performed, we declare what we
claim is
The apparatus described with reference to (Figs 1 & 2) of the accompanying
drawings for producing a highly inflamable mixture of liquid fuel, and ejecting
the same into a steam boiler furnace, or combustion chamber, for the purpose of
raising steam.