Improvements in Gas Burners specially adapted for Acetylene Gas.
Year: 1899

page_text: Date of Application, 26th July, 1899-Accepted, 9th Sept., 1899
COMPLETE SPECIFICATION.
Improvements in Gas Burners specially adapted for Acetylene Gas.
I, DEMETRIUS MINOR STEWARD, of Chattanooga, Tennessee, United States of
America, Manufacturer, do hereby declare the nature of this invention, and in
what manner the same is to be performed, to be particularly described and ascer-
tained in and by the following statement:-
My invention relates to gas burners particularly designed for burning acetylene
gas, and the object thereof is to provide a burner of generally improved construc-
tion. To this end the invention includes a burner having a lava head (so called),
which may be fitted to a suitable metal pillar, and a series of stems with jet
openings therein, secured in the head, so that there will be no direct connection
between the metal pillar and the stems. The invention also includes the par-
ticular construction of the stems to provide for the uniform admixture of the air
with the gas as it is discharged from the openings in the stems.
1
The invention is illustrated in the accompanying drawings in which:-
Figures 1 and 2 show one form of the burner in plan and side elevation
respectively.
Figures 3 and 4 show similar views of another form of the burner, and
Figure 5 shows in sectional view one of the stems.
The pillar 1 may be made is usual of any desirable metal and into the 'end
thereof the head 2 of the burner proper is fitted, this head being made of lava
(so called) steatite or any similar substance.
In the form illustrated in Figures 1 and 2 the two stems 3 are fitted in
obliquely running openings drilled in the head from the top of the same, which are
inclined in opposite directions, to each other and the stems project obliquely
above the top of the head in corresponding opposite directions.
Each stem is of cylindrical form slightly tapering with its smaller end fitting
within the openings in the head 2 and its larger end surmounted by a burner tip
formed by an annular cup shaped flange 5 and extensions 3 through which the
discharge opening 4 leading from the stem is drilled. In the flange 5 an open-
ing 7 is drilled opposite each opening 4 of a larger diameter than the same and
in radial line therewith.
This flange provides an air space between the extension 31 and the interior of
the flange so that as the gas is discharged from the opening 4 it will suck the
air into the air space and so provide for a uniform admixture of the air with the
gas discharged through the openings 7.
In Figures 1 and 2 the openings in the tips are located directly opposite to
each other so that the jets of gas mixed therewith, will meet and thus form a flat
flame.
In Figures 3 and 4, as will be seen, a plurality of radial, stems are provided
which are fitted in holes drilled in the sides of the head. The tip of each stem
in this form is provided with two discharge openings which are so located as
lo direct the jet from the adjacent tip and upwardly in an oblique direction.
The jets so discharged from each tip will commingle with the jets discharged

page_text: from the adjacent tip on each side thereof so as to form flat flames between each
pair of stems.
As before noted the head 2 is interposed between the pillar and the stems and
as the tip is located on the outer end of the stem the pillar is prevented from
becoming heated, thus avoiding the trouble experienced in burners in which the
part fitted directly in the pillars becomes heated. In this latter construction by
reason of the difference in expansion and contraction between the pillar and said
part the relative positions of the same are altered, which will deflect the jets of
gas from a straight course and so distort the flame.
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. In combination with a metal pillar, a head fitted therein, burner stems
extending from said head diverging from each other and arranged in pairs and
jet openings in each stem adapted to direct the jet towards that of the adjacent
stem, substantially as described.
2. In combination, the pillar, the head, the stem fitted at one end in said head
and having its opposite end reduced and having a discharge opening leading
therefrom and an integral annular flange surrounding said reduced end, said flange
having an opening in line with the discharge opening whereby an enlarged cup
shaped end is provided at the outer extremity of the stem, substantially as
described.
Dated this Onth
T1
1000
CHEESBROUGH & ROYSTON,
Applicant's Patent Agents,
15, Water Street, Liverpool.