Improvements in Burners for Vapor Stoves.
Year: 1897

page_text: Date of Application, 14th Apr., 1897-Accepted, 10th July,
1897
COMPLETE SPECIFICATION.
Improvements in Burners for Vapor Stoves.
J, HERBERT JOHN HADDAN, of the Firm of Herbert Haddan & Co. of
18, Buckingham Street, Strand, W.C., London, do hereby declare the nature of
this invention, a communication to me from abroad by John Wesley Allison, of
35 Wall Street, New York in the United States of America, Gentleman, and in
what manner the same is to be performed, to be particularly described and
ascertained in and by the following statement :-
My invention relates to an improvement in burners for vapor stoves, the object
being to provide a burner designed for burning a mixture of petroleum vapor
and air that will combine simplicity and economy in construction with durability
and efficiency in use.
a
A further object is to provide a burner for burning petroleum vapor, with
vaporizer removably secured in place whereby it can be readily and quickly
removed from the burner.
With these ends in view my invention consists in the parts and combinations
of parts as will be more fully described and pointed out in the claims.
In the accompanying drawings, Figure 1 is a view in perspective of a stove
embodying my invention. Figure 2 is a view in vertical section taken longi-
tudinally through the mixing chamber. Figure 3 is a view in vertical section at
right angles to Figure 2, and Figure 4 is a view of the vaporizing tube.
The burners herein described are adapted for use on any of the various kinds
of oil stoves now in common use, but for the purpose of convenience I have
described my improvement in connection with a simple form of single burner
stove.
The stove shown A, consists simply of two rings a, a separated and secured in
proper position relatively to each other, by the inwardly curved arms B. The
lower ring a constitutes a rest for a pan, kettle or other article.
The arins B are provided on their inner faces with the shoulders b which latter
form a rest for the burner C. This burner consists of a tube C¹ bent into circular
form, and permanently secured at its ends to the mixing chamber D. This
chamber D is cylindrical in form and communicates with the circular burner
tube C¹ near one end, the main portion of the mixing chamber being in a plane
outside of the periphery of the circular burner C¹.
Depending from the inner end of the mixing chamber is the air tube E. This
tube is L-shaped, the depending or vertical member thereof having its lower end
open for the free entrance of the air, while the horizontal member thereof projects
within the chamber D and terminates near the outer end of the latter. Secured
to the circular tube Cat a point diametrically opposite the mixing chamber are
the straight tubes F. These tubes communicate with the circular burner C,
extend parallel horizontally toward the mixing chamber, and terminate adjacent
to the inner end of said mixing chamber. The circular burner C¹ and tubes F
are provided on their upper faces with narrow slits, or gas or vapor escape
apertures of any desired shape and size, and hence it will be seen that any gas
or vapor discharged into the mixing chamber will be mixed with air and escape
into the circular burner and from the latter to the straight tubes.
My stove is designed primarily for burning a mixture of petroleum vapor and

page_text: air, the petroleum being stored in a reservoir remote from the stove, and fed thereto
through a small tube. This tube (not shown) is coupled up at d to the stuffing
box which latter is removably secured to the vaporizing tube H. This tube 1[
is straight throughout its length, and is provided at its discharge end with e-
movable nipple e having the conical bore e¹ through which the needle valve i
passes. This needle valve passes through the tube H and through the stuffing
box G, and is secured at its outer end to the sleeve J which latter is mounted on
the stuffing box. While I can secure the needle valve to the sleeve in various
ways, I prefer to secure it, by the lever J¹ the inner end. of which bears against
the valve and locks it to the sleeve. The sleeve is provided with a spiral slot j,
open at the top, which slot is designed to receive the lug on the stuffing box G.
From this it will be seen that by pressing on lever in a direction to rotate the
sleeve, the latter is rotated and by means of the spiral slot therein, is also moved
longitudinally thus moving the needle valve longitudinally and opening or closing,
more or less, the discharge orifice in the end of the vaporizing tube H. This
tube is removably secured in a position between and in a slightly higher plane
than the straight tubes I', so that the flames from the combined air and vapor
burned in the straight tubes keep the vaporizing tube sufficiently heated to
vaporize the oil therein. The discharge end of the tube passes through an opening
in the air tube E in line with the horizontal portion thereof, and hence the vapor
generated in the vaporizing tube is discharged into the air tube, and creating a
suction therein draws up air through the vertical portion of the tube E. The air
and vapor thus brought together in the air tube are discharged against the closed
end of the air mixer and deflecting thereby, thus causing a thorough commingling
of the air and vapor. This mixed air and vapor then pass into the circular
burner and part of it enters the straight tubes, and is burned as it issues from the
escape orifices.
The vaporizing tube is supported at its discharge end by the air tube E, and near
its outer end by the bearing L carrying thumb screw, adapted to bear against
the tube and hold it in position. The bearing L is attached to and supported by
the circular burner C¹ and the portion of the latter immediately under the tube
is recessed for the reception of the tube, the concave face of the recessed portion
being provided with orifices for the escape of the vapor immediately below at the
sides of the tube thus causing the end of the tube adjacent to the oil supply pipe
to be highly heated.
By locating the vaporizing tube well down on the burner and by heating it
throughout its length, all the oil entering same is vaporized and as the mixing
chamber is also heated by its proximity to the burner, all danger of condensation
is overcome, and by making the vaporizing tube straight and removably securing
it in position it can be readily detached and deposits of carbon, either externally
or internally removed.
M is a cup designed to hold oil or alcohol, which when ignited heats the
vaporizing tube and starts the vaporization of the oil. After the vaporization
of the oil commences, the mixed air and vapor escaping from the orifices in the
straight burner tubes is ignited by the flame from the starting cup and in turn
ignites the vapor escaping from the circular tube. This starting cup is secured
in place under the vaporizing tube by the yoke M¹ secured to the cup and
embracing the air tube.
It is evident that numerous slight changes might be made in the general form
and arrangement of parts herein shown and described without departing from
the spirit and scope of my invention and hence I would have it understood that
I do not limit myself to the precise details herein shown and described, but,
Having now particularly described and ascertained the nature of my said inven-
tion, and in what manner the same is to be performed, I declare that what I
claim is:
1. A burner for oil stoves comprising a tube, a mixing chamber in direct com-
4

page_text: munication with said tube, an air tube opening into the mixing chamber and a
vaporizing tube located in a position to be heated by the burner and communicating
with the mixing chamber.
2. A burner for oil stoves comprising a tube, a mixing chamber in direct
communication with said tube, an air tube opening into the mixing chamber and
a removable vaporizing tube located in a position to be heated by the burner and
communicating with the mixing chamber.
3. A burner for oil stoves comprising an endless tube, a mixing chamber in
direct communication with said tube, an air pipe leading into said mixing
chamber, parallel burner tubes each closed at one end, and communicating at
their other ends with the endless tube, and a vaporising tube located between
and in a plane slightly above the parallel tubes, and communicating with the
mixing chamber.
4. A burner for oil stoves comprising an endless tube, a mixing chamber in
direct communication with said tube, an air pipe leading into said mixing
chamber, parallel burner tubes each closed at one end and communicating at their
other ends with the endless tube and a removable vaporizing tube located
between and in a plane slightly above the parallel tubes and communicating with
the mixing chamber.
5. A burner comprising an endless tube, the mixing chamber, the parallel
tubes, a starting cup and a vaporizing tube, substantially as set forth.
6. A burner comprising an endless tube, a mixing chamber, the parallel tubes,
and a vaporizing tube having a valve for regulating the supply of vapor to the
mixing chamber.
7. The combination with a stove composed of upper and lower sections and
intermediate connecting arms, of a burner supported between said upper and lower
sections, the said burner comprising a circular tube, a mixing chamber, parallel
tubes, a starting cup, and a removable vaporizing tube, substantially as set
forth.