Improvements in Atmospheric Gas Burners, and in the Arrangement of Incandescent Material to be Heated by Atmospheric Gas Burners.
Year: 1896

page_text: Date of Application, 27th Oct., 1896
Complete Specification Left, 27th July, 1897-Accepted, 2nd Oct., 1897
PROVISIONAL SPECIFICATION,
Improvements in Atmospheric Gas Burners, and in the Arrangement
of Incandescent Material to be Heated by Atmospheric Gas
Burners.
WARREN BODEN SMITH of 66 College Street Chelsea S.W. Engineer do hereby
declare the nature of this invention to be as follows:-
(1) To enlarge the mouthpiece of the burner patented in 1893 Pat. No. 5312 (2) To
construct a second mixing chamber (i.e. where a second supply of air intermixes) to
a burner with a small outlet at its first mixing chamber (3) To provide a burner
with support for the base of a mantle and to use the base of or make a mantle
suitable for being supported by its base (4) To construct a socket or clip attachable
to the base of a mantle and attachable or fixed to a gas burner (5) To arrange a
group or ring of burners (with or without a lip, common channel or mouthpiece)
suitable to go under one mantle (6) To construct a burner producing a flame
like the flame of an argand burner but atmospheric (7) To arrange incandescent
material on the inside of the flame described in No (6) herein and above.
Dated this twenty-seventh day of October 1896
WARREN B. SMITH.
Improvements in Atmospheric Gas Burners, and in the Arrangement
of Incandescent Material to be heated by Atmospheric Gas
Burners.
WARREN BODEN SMITH 66 College Street Chelsea S.W. Engineer 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:-
I enlarge the mouth piece of the atmospheric gas burner patented 1893
Pat. No 5312-To a gas burner as described above or to a gas burner having a small outlet
from its first mixing chamber I construct a second mixing chamber i.e. where an
additional quantity of air can inter mix with the gases in the burner. In Figure 1. A
and B-a indicates air inlets to the first mixing chamber and a a indicates air inlets
to the second mixing chamber. (The second air inlets may be in the narrow part
of the burner providing they are very close to where it enlarges). The drawing is
about full size. The size of the mantle should be about 13 inches long and of
one inch external diameter at the base. The dotted line c shows a cover cap that
protects the burner from side draughts when gas is turned down. Some of the
advantages of this burner are:-It can be turned down very low is still atmospheric
so does not smoke the chimney yet will not light back. An ordinary gas tap that

page_text: may be in existence on a gas pendant or fitting can serve as a bye pass with a file
inark on the plug. The burner will work with a short chimney is highly efficient
and can be regulated from 2 to 20 candle power. It is with chimney as small as the
ordinary electric glow lamp.
I arrange a ring or group of small atmospheric gas burners, (by a group I mean 2 or
more burners) preferably those with a very small outlet as in Paten No. 5312/1893,
suitable to to go under a mantle with or without a lip, common outlet or flattening or
slotting the nozzles of burners. Figure 2" shows a body, drilled to receive 8 small
burners, in plan. In Figare 2 a section elevation of the body 2 is shown at b with
two of the burners in same and one of these in section. The air inlets a are on the
outside only to avoid interference with one another. The dotted line c is a cover cap
and rests on the support d and against the projections d. The circular ring m is
drilled to receive the nozzles of burners and has a common circular mouthpiece in its
upper part. is a convenient place to attach the chimney-gallery indicated by the
dotted line f. The pin i screws into the body to hold the tube n in its place. If
the tube is attached to the lower part of the ring m then may be dispensed with
and the ring with chimney-gallery and mantles can easily be lifted off together but
care must be taken that the air passage in m is not obstructed too much. The
drawing is about full size but the only limit to a larger group burner is the size that
mantles can be made. The group burner by the use of the. common outlet or
mouthpiece can be made to give a ring like flame or in other words like the flame of
an argand burner only atmospheric. The group burner when the gas is turned down
is still atmospheric.
I make a modification of the group burner by constructing the small burners in
one or more segments with or without a lip or common mouthpiece suitable to go
under a mantle. Fig 3 shows in section a modification of the group burner. The
circular ring m, in which twelve burners are constructed is in one piece. This screws
into the lower part of burner which forms between the two a ring supply of unmixed
coal gas to the upper part. The lettering of Figure 3 may be compared with
Figure 2.
Upon the inner side of the flame of a group of burners or a modification of same
or upon the inside of an atmospheric ring flame I arrange incandescent material with
or without incandescent material upon the outside of the same flame which for
convenience I will term the inner and outer mantles. The mantles mostly in use
may be divided into two principal groups-those emitting excess of green and yellow
rays and the others excess of red and violet rays which for simplicity I will term
green mantles and red mantles. If I wish to produce a pure white light I put a red
mantle upon the inside and a green mantle upon the outside of the ring flame. If I
desire a soft light I put a green mantle inside and a red mantle inside and a red
mantle outside. If I desire a very powerful light I put green mantles inside and
outside. The broken lines at k and Figure 24 indicate two mantles which if of the
usual construction should be fairly open at the top. The crutch peg / supports both
mantles. Jis a piece of porcelain to direct the air supply and to steady the inner
mantle or instead of J the inner mantle may be contracted at the base. The
burner is fairly efficient with one mantle.
To give additional support to a mantle, especially in street lighting, I give the
mantle base-support by providing an adjustable support upon a burner. I prefer to
do this by putting a thin spiked disc or nut upon the nozzle of the burner which can
be screwed up to lightly touch the base of the mantle. Fig 4 shows the screwed
nozzle of a burner and x is an adjustable nut.
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. The atmospheric gas burner Patent 5312/1893 Claim 1. with an enlarged mouth
piece substantially as herein described.
2. The burner as in Claim 1 of this Patent, or a burner with a small outlet from

page_text: the first mixing chamber with a second mixing chainber substantially as herein
described.
3. A group of small burners or a modification of same suitable to be covered by a
mantle substantially as herein described.
4. Incandescent material upon the inside of a ring flame or group of flames
substantially as herein described.
5. The arrangement of mantles substantially as herein described.
6. An adjustable support upon a burner suitable for supporting the base of a
mantle substantially as herein described.