An Improved Bunsen Burner
Year: 1895

page_text: Date of Application, 29th Jan., 1895-Accepted, 2nd Mar., 1895
UUMI UPIN
An Improved Bunsen Burner,
I, CARL SEEL, of 70 Blumen Strasse of Berlin, Kingdom of Prussia, German
Empire, Merchant, 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 refers to burners, in which a mixture of air and gas is used for
producing a non-luminous flame of great heat, and my improvements in burners of
said kind relate to the combination of the same with a mixing-wheel arranged
between the air- and gas-tube and the burner proper, or directly below said burner
proper respectively. Said mixing-wheel is provided with wings similar to those
of a ventilator, so as to enable the said wheel to be rotated by the buoyancy of the
gas, or by the pressure of the same respectively. The purpose of my invention is
to obtain a very thorough mixing of the gas and air, and, further to produce a
longer, more cylindrical, and more uniform flame by causing the finished mixture
to rotate under the re-acting influence of the said mixing-wheel.
My improved Bunsen-burner may be employed for heating-purposes as well as
for lighting-purposes, i.e. for the so-called gas-glow-light, and is, in fact, intended
especially for the latter.
In order to make my invention more clear, I refer to the accompanying drawing,
in which similar letters denote similar parts throughout the different views, and
in which:
Fig. 1 is a vertical section through the burner,
Fig. 2 is a horizontal section taken on line 5-6 of Fig. 1,
Fig. 3 is a vertical section through a modification, and
Fig. 4 is a vertical section through another modification.
The air-tube a which is provided with the perforations a¹ is fixed to the gas-
nozzle b, and carries at its top the casing c. The latter contains centrally a
pivot d, upon which is arranged the mixing-wheel e; this wheel is provided with
a number of radial cut-outs e', and on its upper surface with a corresponding
number of inclined wings e². The gas and air, on its way from the tube a to the
truncated burner proper f, pushes upon said inclined wings e² and causes, thus, the
wheel e to rotate upon the pivot d. Owing to the resistance of the wings e² on one
part, and to the rotation of the wheel e on the other part, the gas and air are
thoroughly mixed, and this finished mixture will by the reacting influence of the
wheel e be caused to circulate within the upper part of the casing c. i.e. between
the wheel e and the truncated burner proper f.
The mixture, therefore, will escape, out of the numerous perforations of the
burner not normally to the outer surface of the burner, but rather tangentially,
and the flame will, thus, become a perfectly cylindrical and uniform one, and will
moreover be of a comparatively great length. This is of great importance
especially if the improved burner is used for the so-called gas-glow-light, as not
only a saving of gas is obtained, but the durability of the incandescence-body is
greatly increased, too.
In order to secure the central vertical rod holding the incandescence-body to the
afore-described burner, I prefer to provide the truncated burner proper f in its
flat top-portion f¹ with an opening 2, and I then attach to the lower side of said
flat-portion fa funnel-shaped piece baving at its lower end a small box f*.
The aforementioned supporting rod (not shown) of the incandescence-body is

page_text: passed through the opening f* into the box f* and is thus securely held, as will be
clear without further explanation.
The function of the cone f* is a double one, in that it not only holds the box f*,
but also deflects the finished mixture of gas and air to the perforated burner-plate f.
In order to prevent any decrease in the rotary velocity of the mixture, I prefer to
let a part of said cone f³ rotate together with the mixing wheel e. I have
shown this mode of construction in Fig. 3, in which said cone has been divided
at fin two parts, the small upper part being fixed to the top-plate f¹ of the
burner, and the large lower part to the central portion of the wheel e.
bex fis in this case elongated, and secured directly to the said top-plate.fl.
Instead of employing a flat mixing-wheel, as in Figs. 1 & 3, I may use a
conical one, and combine the same directly with the movable cone f³, as shown
in Fig. 4, from which the construction is clearly to be comprehended without
further explanation.
The
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. In a Bunsen-burner, the combination with the tube leading the gas and air
to the burner proper, of a mixing-wheel arranged below the latter, and adapted to
be rotated by the gas, for the purpose as described.
2. In a Bunsen-burner, the combination with the tube leading the gas and air
to the burner proper, of a casing arranged between said tube and burner, and
containing a mixing-wheel adapted to be rotated by the gas, for the purpose
.as described.
3. In a Bunsen-burner, the combination with the tube leading the gas and air
to the burner proper, of a mixing-wheel arranged below the latter, and adapted
to be rotated by the gas, said burner proper being formed by a truncated perforated
cone having a non-perforated top-plate, for the purpose as described.
4. In a Bunsen-burner, the combination with the tube leading the gas and air to
the burner proper, of a casing arranged between said tube and burner, and con-
taining a mixing-wheel adapted to be rotated by the gas, said burner proper being
formed by a truncated perforated cone having a non-perforated top-plate, for the
purpose as described.
5. In a Bunsen-burner, the combination with the tube leading the gas and air
to the burner proper, of a mixing-wheel arranged below the latter, and adapted
to be rotated by the gas, said burner proper being provided with an inverted
cone adapted to deflect the mixture of gas and air to the said burner, for the
purpose as described.
6. In a Bunsen-burner, the combination with the tube leading the gas and air
to the burner proper, of a mixing-wheel arranged below the latter, and adapted to
be rotated by the gas, said mixing-wheel having in its center an inverted cone
extending upwards, and adapted to deflect the mixture of gas and air to said burner,
for the purpose as described.
7. In a Bunsen-burner, the combination with the tube leading the gas and air to
the burner proper, of a mixing-wheel arranged below the latter, and adapted to be
rotated by the gas, said mixing-wheel being secured to an inverted cone adapted to
rotate upon a pointed pivot, for the purpose.as described.
Dhimoo 1
1005
By Geo. H. Rayner,
CARL SEEL,
37, Chancery Lane, London, W.C., Agent for the Applicant.