AN IM- PROVEMENT IN THE CONSTRUCTION OF GAS BURNERS
Year: 1867

page_text: LETTERS PATENT to Julius Brönner, of Frankfort-on-the-Maine, in the
Kingdom of Prussia, Manufacturer, for the Invention of "AN IM-
PROVEMENT IN THE CONSTRUCTION OF GAS BURNERS."
Sealed the 29th November 1867, and dated the 11th October 1867.
COMPLETE SPECIFICATION filed by the said Julius Brönner at the Office
of the Commissioners of Patents, with his Petition and Declaration, on
the 11th October 1867, pursuant to the 9th Section of the Patent Law
Amendment Act, 1852.
TO ALL TO WHOM THESE PRESENTS SHALL COME, I, JULIUS
BRÖNNER, of Frankfort-on-the-Maine, in the Kingdom of Prussia, Manu-
facturer, send greeting.
WHEREAS I am in possession of an Invention for "AN IMPROVEMENT IN
THE CONSTRUCTION OF GAS BURNERS," and have petitioned Her Majesty to grant
unto me, my executors, administrators, and assigns, Her Royal Letters Patent
for the same, and have made solemn Declaration that I verily believe myself to
be the true and first Inventor thereof.
NOW KNOW YE, that I the said Julius Brönner, do hereby declare that
the following Complete Specification, under my hand and seal, fully describes

page_text: and ascertains the nature of my said Invention, and the manner in which the
same is to be performed, reference being had to the accompanying Sheet of
Drawing:-
This Invention relates to a certain improvement in the construction of all
gas burners having any application by which the entrance of the gas into the
burner is regulated, but more especially to those burners or to burners analogous
to those for which I obtained Letters Patent under the No. 2679, and date
of Seventeenth October, One thousand eight hundred and sixty-six, which
improvement has the effect of preventing the noise so disagreable in the old
burners. Since the gas burners patented as aforesaid have been in practical
use it has become apparent that they have an important defect which would
make them unfit for many purposes if it were not possible to overcome it. This
defect is that the gas when driven under strong pressure through the two
small orifices of the under burner into the hollow body of the burner produces
a somewhat loud whistling noise rendering the use of my burners scarcely
possible in oflices and other places where quiet is important in spite of its
other advantages such as great saving of gas and soft light. I tried in many
different ways to overcome this defect, for instance, by alteration of the hollow
body, by providing the lower hole burner with one vertical hole in the middle
instead of with two holes, by replacing the cone of the hole burner through
which the two holes are pierced by cylinders of different height and diameter,
by prolonging or shortening the distance between the inlet and outlet openings,
and by other contrivances, but without attaining the desired result. Finally,
I was led to construct the lower hole burner in the manner which I
will now proceed to describe, and which constitutes the improvement, the
subject of my present Invention, that is to say, I now give to the lower hole
burner instead of only two orifices, as heretofore, a greater number of orifices,
say three, four, five, six, or more, which are distributed around the centre,
whereby the gas is spread more completely than by two holes only, and it is
forced to enter more equally and more regularly into the hollow body of the
buruer, and this object is more perfectly attained by piercing the holes in an
inclined direction, and by giving a concave-convex form to the piece which is
inserted in the burner and coutains the holes. The larger the intended con-
sumption of the burner the greater will be the number of orifices. In this
manner I have completely attained my purpose, and have got rid of the
disagreable noise which hitherto attached itself to my burners.
The Sheet of Drawing hereunto annexed and forming part of this my
Specification shews at Figure 1, in longitudinal section, and twice the actual
size, one of my burners of the older construction, that is to say, made according

page_text: to my Patent No. 2679 of A.D. 1866. A is the body of the burner, which
I make by preference of brass, and upon which is screwed from above a cut
burner B, whilst into the lower opening is introduced a small cone c with two
pierced holes after the manner of an ordinary hole burner.
Figure 6 is a bottom plan view of same; Figure 2 shews a burner made
with the improvement the subject of my present Invention.
A, B, remain unaltered, as in Figure 1, but in place of the small cone c is a
piece c' of convex-concave form which is pierced by a greater number of holes
thus by 3, 4, 5, 6, 7, 8, or more, as may be seen by the Figures 3, 4, and 5
which shew bottom plan views of said burner, namely, co with 4, c with 6,
cl with eight piercings.
In conclusion I desire it to be understood that I do not bind myself to
giving a convex concave form to the piece c', but expressly reserve the right of
giving it any other shape that I may in practice find desirable; but that I claim
the exclusive use as of my Invention of the arrangement by which the gas
enters into the burner by more than two holes made in an inclined direction,
and the application of this arrangement to all kinds of gas burners, but more
especially to economical burners and circular burners such as "Argand"
burners and Dumas" burners.
In witness whereof, I, the said Julius Brönner, have hereunto set my
band and seal, this Eighth day of October, in the year of our Lord
One thousand eight hundred and sixty-seven.
JULIUS BRÖNNER. (L.B.).
Signed, sealed, and delivered
in the presence of
T. Z. KUCHEN,
H. B. M. Consul
at Frankfort / Mayne.