Improvements in and relating to Atmospheric Gas Burners.
Year: 1893

page_text: Date of Application, 28th Oct., 1893
Complete Specification Left, 30th July, 1894-Accepted, 8th Sept., 1894
PROVISIONAL SPECIFICATION.
Improvements in and relating to Atmospheric Gas Burners.
I, JOHANNES ELSTER, of No. 67 Neue Königstrasse in the City of Berlin, in
the Empire of Germany, Manufacturer, do hereby declare the nature of this
invention to be as follows:-
This invention relates to atmospheric gas burners and has for its object to so
construct Bunsen burners, that tubular objects may be exposed to a most effective
flame of tubular form. To attain this end it would be desirable to produce a flame
similar to that of an Argand burner. Such burners with fine issue-jets have the
disadvantage that a great number of jets necessitating a large circumference must
be provided if a large volume of gas is to be burnt, since if larger issue-jets be
provided the lighting-back of the flame is not easily prevented.
By my present invention I prevent the lighting-back notwithstanding the large
area of the gas jets, by covering the top or head of the burner with a gauze cap.
The gas jets are arranged in one or more circles on this head and the gauze cap is
secured thereto by a ring or other suitable means. The object to be heated is put
upon the rim of a fire-proof shell or ring which is carried by the chimney-holder
and which at the same time causes the gas jets, which escape from the holes of the
top in an oblique direction to turn upward. If desired the object to be heated can
be supported by a rod secured to the head of the burner.
After the mixture of gas and air has escaped from the holes in the top and has
passed through the wire gauze, a further quantity of air is brought to that mixture,
which ascends between the head and the shell or ring above mentioned. The air
may be forced upward by the draught due to a chimney which is carried on an
ordinary gallery.
The action of the device is as follows,
The gas flows out of the opening in the supply tube and is then mixed with air
drawn in through lateral openings. The mixture ascends in the burner tube to the
head and escapes therefrom through a number of jets in the burner top. The jets
of gas form a conical surface and are somewhat dispersed by the gauze cap over
the head. The lower air stream now meets the cone of jets, and at the same time
the jets impinge against the shell or ring surrounding the head. Both these
influences combine to push the gas flame upward, so that at the shell or ring a
tubular flame is formed which is kept together by the heated object and has its
hottest zone perpendicularly over the annular slit between the head of the burner
and the cone or ring.
Dated thin 10th day of October 1902
HASELTINE, LAKE & Co.,
45, Southampton Buildings, London, W.C., Agents for the Applicant.
COMPLETE SPECIFICATION.
Improvements in and relating to Atmospheric Gas Burners.
I, JOHANNES ELSTER, of No. 67 Neue Königstrasse in the City of Berlin, in
the Empire of Germany, Manufacturer, 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 :-
This invention relates to atmospheric gas burners and has for its object to so
FD

page_text: construct Bunsen burners, that tubular objects may be exposed to a most effective
flame of tubular form.
To attain this end it is desirable to produce a flame similar to that of an Argand
burner. Such burners with fine issue-jets have the disadvantage that a great
number of jets necessitating a large circumference must be provided if a large
volume of gas is to be burnt, since if larger issue-jets be provided the lighting-back
of the flame not easily prevented.
Figure 1 is a sectional elevation of my improved burner.
Figure 2 is an elevation of the same with the burner tube removed.
Figure 3 is an elevation of the burner tube and Figure 4 is a plan of Figure 2.
By my present invention L prevent the lighting-back notwithstanding the large
area of the gas jets by covering the top or head of the burner E with a gauze
cap F. The gas jets e are arranged in one or more circles on this head and the
gauze cap is secured to a projection Z on the head by a ring r or by any other
suitable means. The object to be heated is put upon the rim G of a fire-proof
shell or ring H which is carried by the chimney-holder K and which at the same
time causes the gas jets, which escape from the holes of the top in an oblique
direction to turn upward. If desired the object to be heated can be supported by
a rod secured to the projection Z on the head of the burner.
After the mixture of gas and air has escaped from the holes in the top and has
passed through the wire gauze, a further quantity of air is brought to that mixture
which ascends between the head and the shell or ring above mentioned. The air
"being forced upward by the draught due to a chimney which is carried on an
ordinary gallery K.
The action of the device is as follows:—
The gas flows out of the opening or nozzle A in the supply tube C and is then
mixed with air drawn in through lateral openings B. The mixture ascends in the
burner tube D to the head E and escapes thereform through a large number of
jets e in the burner top. The jets of gas form a conical surface, and are somewhat
dispersed by the gauze cap F over the head. The lower air str am now meets the
cone of jets, and at the same time the jets impinge against the shell or ring H
surrounding the head. Both these influences combine to turn the gas flame
upward, so that at the ring G a tubular flame is formed which is kept together by
the heated object and has its hottest zone perpendicularly over the aunular slit
between the head of the burner and the cone or ring.
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. An atmospheric burner having jets arranged in a ring, said jets being
surrounded by a fire-proof ring which causes the flame to assume a tubular form,
substantially as, and for the purpose, specified.
2. An atmospheric burner constructed substantially as described with reference
to the accompanying drawing and operating as specified.
ليمي
1
CT1
300
HASELTINE, LAKE & Co.,
45, Southampton Buildings, London, W.C., Agents fo. he Applicant.