Improvements in Gas Burners Suitable for Heating Purposes.
Year: 1898

page_text: Date of Application, 29th Mar., 1898-Accepted, 18th June, 1898
COMPLETE SPECIFICATION.
Improvements in Gas Burners Suitable for Heating Purposes.
I, AUGUST BUERKLE, Plumber, residing at Troy Hill, in the City of Allegheny,
County of Allegheny, State of Pennsylvania, and United States of America, 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:
The invention described herein relates to certain improvements in gas burners,
and has for its object a construction and arrangement of parts whereby a proper
mixture of gas, preferably of an illuminating character, and air may be effected
for the economical use of such gas for heating purposes. In general terms, the
invention consists in the construction and combination substantially as hereinafter
more fully described and claimed.
In the accompanying drawings forming a part of this specification, Fig. 1 is a
view, partly in section and partly in elevation, of my improved burner, and Fig. 2
is a perspective view, the parts forming the upper portion of the burner being
separated, to more clearly illustrate their construction.
In the practice of my invention, I provide a chamber 1, which in the present
style of burner is made in the form of an annulus, and to this chamber is con-
nected the gas supply pipe 2. On the top of the chamber 1 is secured a series of
tubes 3, provided at or near their lower ends with perforated bulbs or enlarge-
ments 4, into which project the nipples 5, having perforations therethrough, for
the flow of gas into the bulbs. These pipe sections 3 may be connected in any
suitable manner to the chamber 1, but are preferably provided at their lower ends
with internally threaded sockets 6, screwing onto hollow studs 7, which, in turn,
are screwed into threaded openings through the upper wall in the chamber 1.
As the gas flows from the chamber 1 up through the perforated nipples 5, it
mingles with air flowing in through the perforations in the bulbs 4, and the
commingled gas and air flow on up through the pipe 3, and into the mixing
chamber arranged on top of the pipes 3. This mixing chamber is formed in two
horizontal sections 8 and 9, the lower section 8, being provided with sockets 10,
for the reception of the upper ends of the pipes 3. The upper section, 9, is
contracted to approximately a V-shape, and through its walls, near its apex, are
formed openings 11 for the lateral escape of the gas and air. On top of the
section 9 is formed or secured a hood 12, constructed to project over the upper
portion of the section 9, and prevent any water which may drop down on the hood
from flowing in through the perforations 11 in the section 9, .as
clearly shown in Fig. 1. The mixing chamber formed by the sections; 8
and 9 is divided into two compartments by a diaphragm 13, which is
preferably held in position by a concavo-convex flange 14, fitting on the
V-shaped edge of the lower section 8, and also forming a correspondingly shaped
seat for the section 9. As shown in Fig. 1, this diaphragm 13 is provided in its
body portion with a series of fine slits, arranged transversely of the diaphragm,
for the passage of the gas from the upper to the lower compartments of the mixing
chamber. While the comparatively efficient commingling of the gas and air is
effected in the tubes 3, and in the lower compartment of the mixing chamber,
such commingling is rendered complete by the interposition of the slitted
diaphragm in the path of movement of the gas to the exit holes 11. It has been

page_text: found that the slitted diaphragm is more effectual than a gauze diaphragm hereto-
fore employed, in effecting the mixture of the gas and air, and the slits are less
liable to be clogged or stopped up by dirt and dust. It will be observed that the
slits are arranged in sets, the spaces between adjacent sets being greater than
those between adjacent slits of the same set. It is preferred that
the sets of slits should be approximately double the number of the
tubes 3, and that the diaphragm should be so arranged that the comparatively
broad spaces between the sets of slits should be in line with the axes of the tubes,
so that the streams and jets of gas and air will impinge upon the broad faces
and will be broken up and diffused. The diaphragm, in addition to ensuring a
thorough commingling of the gas and air, will also serve to check or retard the
rapidity of flow of the gas and air.
-
are
Upon the section 9 of the mixing chamber is formed a pilot light, consisting,
as shown in Fig. 1, of a central tube 14, secured upon the boss or shoulder 15, of
section 9, and provided with a series of two or more flanges 16. The walls of this
tube
are perforated above, below and between the flanges, which
also vertically slotted, as shown in Fig. 2, for the reception of the
radial wings 17. These flanges, with their radial wings and cap 18, form
a series of radial pockets in which the gas can burn and the walls of these pockets
will protect the flame therein from being blown out by sudden drafts.
gas
The gas receiving chamber 1, should be made of such a size or capacity com-
pared to the capacity of the perforations through the nipples 5, as to ensure a
regular distribution of gas to cach nipple and an approximately even flow of gas
through them. In addition to securing a more thorough mixture of
and air,
the diaphragm will prevent the flashing back of the flame into the mixing tubes.
Having now particularly described and ascertained the nature of my said
invention and in what manner the same is to be performed, I declare that what I
claim is:-
1. A gas burner having in combination a gas receiving chamber, a series of
mixing tubes connected to the receiving chamber, and a mixing chamber con-
nected to the mixing tubes, the upper portion of the mixing chamber being
contracted and having its side walls perforated, substantially as set forth.
2. A gas burner having in combination a gas receiving chamber, a series of
mixing tubes connected to the receiving chamber, a mixing chamber, connected
to the mixing tubes, the upper portion of said chamber having its side walls
perforated, and a hood projecting over the perforations, substantially as set forth.
3. A gas burner having in combination a gas receiving chamber, a series of
mixing tubes connected to the receiving chamber, a mixing chamber connected to
the mixing tubes and having its upper wall perforated for the escape of gas and
air and a slitted diaphragm arranged in the mixing chamber, substantially as set
forth.
4. A gas burner having in combination a gas receiving chamber, a series of
mixing tubes connected to the receiving chamber, a mixing chamber connected to
the mixing tubes and having its upper wall perforated for the escape of
gas and
air and a diaphragm having slits arranged in sets and so located in the mixing
chamber that the slits are at one side of the axes of the mixing tubes, substan-
tially as set forth.
1
נוי
1
D
11
131
1
D 1000
Witnesses:
DARWIN S. WOLCOTT,
BAYARD H. CHRISTY.
AUGUST BUERKLE.