IMPROVED FIXING OF DRAUGHT APPARATUSES AND THEIR RESPECTIVE SUPPORTS ON ALL KINDS OF GAS BURNERS, AND
Year: 1866

page_text: LETTERS PATENT to Julius Brönner, of Frankfort-on-the-Main, Prussia,
for the Invention of "IMPROVED FIXING OF DRAUGHT APPARATUSES AND
THEIR RESPECTIVE SUPPORTS ON ALL KINDS OF GAS BURNERS, AND IMPROVED
COMPLETE SPECIFICATION filed by the said Julius Brönner at the Office
of the Commissioners of Patents, with his Petition and Declaration, on
the 17th October 1866, pursuant to the 9th Section of the Patent Law
Amendment Act, 1852.
TO ALL TO WHOM THESE PRESENTS SHALL COME, I, JÚLIUS
BRÖNNER, of Frankfort-on-the-Main, Prussia, send greeting.
WHEREAS I am in possession of an Invention for "IMPROVED FIXING
OF DRAUGHT APPARATUSES AND THEIR RESPECTIVE SUPPORTS ON ALL KINDS OF GAS
BURNERS, AND IMPROVED GAS BURNERS AND DRAUGHT APPARATUSES IN CONNECTION
WITH THAT," 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 am the true and first
Inventor thereof, and that the same is not in use by any other person or
persons to the best of my knowledge and belief.
NOW KNOW YE, that I, the said Julius Brönner, do hereby declare
that the following Complete Specification under my hand and seal particularly
describes and ascertains the nature of my said Invention, and in what manner

page_text: the same is to be performed, reference being had to the several Diagrams on
the accompanying Sheet of Drawing forming part of this Specification.
In order to obtain a tranquil flame by means of a draught apparatus, for
instance, by a glass globe, it is requisite that the distance from the base of the
draught apparatus to the beginning of the flame does not exceed a certain
limit.
Hitherto the supports of the draught apparatus have been screwed on the
gas pipes from which the burners project. Now, since the screw thread by
which the supports are fixed is sometimes placed higher, sometimes lower on
the gas pipes, and since the height of the various kinds of burners and also
the height of the various kinds of supports differs, it was a matter of chance
whether a tranquil flame could be obtained by this universally employed
arrangement. To remedy this defect is a material object of the improvement
I have invented.
.
This improvement consists not only in the direct fixing of the draught appa-
ratuses and their respective supports on all kinds of gas burners, but also in
the construction of all kinds of gas burners, which I effect in such a manner.
as thereby to render the direct fixing upon them of these supports possible,
whether by screwing on or otherwise, and in an improvement of draught
apparatus belonging thereto and herein-after described.
My Invention is especially important for all kinds of economical gas
burners, because such gas burners which I construct on the principle of those
represented on the annexed Sheet of Drawing, that is to say, so that the gas
coming from a burner of a lesser opening is conducted to another with larger
opening, passing or not through an intermediate layer, because such gas
burners I say, although giving more light than other gas burners, produce a
very wavering flame, and are unfit for most purposes if not combined in a
fixed manner with appropriate apparatuses, I have therefore constructed these
latter also especially for this kind of burner, and have joined them directly
thereto, so that only thereby these burners become of practical value. The
above-mentioned draught apparatuses are composed :—
No. I., of a bell glass, the support of which is fixed on the burner itself, as
shewn, Figures 1, 2, and 3 of the annexed Sheet of Drawing.
No. II., of a draft tube arranged above the burner, provided or not with a
reflector, and also applied directly on the burner, as shewn, Figure 4 of the
Drawing.
No. III., of a draught apparatus also joined directly to the burner, but
which produces the ascending current of air by the heating of the air beneath
the flame. In this arrangement the flame burns between two wings, which

page_text: receive heat from the nucleus or black central part of the flame and con-
duct this beat beneath the flame so as to regularly heat the air, which rises in
such a way as to cause a vertical current of air which tranquilizes the flame.
See Figures 5, 6, and 7.
In order to obtain the most suitable flame for the draught apparatuses
Nos. I. and II., I have arranged the head of the burner in the manner shewn
Figure 8, whereas for the apparatus No. III. I give it the shape shewn
Figure 5.
The several Diagrams. on the annexed Sheet of Drawing are simply
intended as examples demonstrating the principles of my Invention, but in
nowise to limit me in the shape or dimensions to be given to the arrangements
by the aid of which the same end may be obtained.
In witness whereof, I, the said Julius Brönner, have hereunto set my
hand and seal, this Tenth day of October, in the year of our Lord
One thousand eight hundred and sixty-six.