Improvements in Incandescence Gas Burners.
Year: 1896

page_text: Date of Application, 8th Apr., 1896-Accepted, 1st Aug.. 1996
COMPLETE SPECIFICATION.
Improvements in Incandescence Gas Burners.
I PAUL SCHROEDTER, of 65 Oranienstrasse Berlin, in the Empire of Germany,
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 for improvements in incandescence gas burners has for its object to
so construct the burner as to ensure a flame cone which, as compared with that of
the burners heretofore used, possesses, increased lighting power, and especially
causes the lower part of the mantle to emit light of the same intensity as the upper
part.
In the accompanying drawings Fig. 1 is a vertical_section of an incandescence
gas burner constructed according to this invention, and Fig. 2 is a plan thereof.
Figs. 3 and 4 are similar views to Figs. 1 and 2 showing a modified construction
of burner and Figs. 5 and 6 show a further modification.
The lower part of the burner proper consists of a tube a formed at its upper
end with a trumpet-like enlargement or chamber b closed by a disc c.
In the construction of burner illustrated in Figs. 1 and 2, a number of tubes d
are arranged above the disc c preferably in a circle and communicate with the
chamber b through corresponding holes near the outer edge of the disc_c.
In the modified construction illustrated in Figs. 3 and 4, the tubes d are replaced
by a number of shafts g g formed by dividing the annular space between the
two concentric tubes e by radial partitions. The shafts like the tubes d, may
be provided in any number and arranged at any desired distance from each other.
The circle of holes in the disc c has to be arranged accordingly.
In the modified construction illustrated in Figs. 5 and 6, two concentric
tubes h and i are arranged above the disc c and the intermediate space above the
circle of holes formed in the disc c may be either left free or divided in the
direction of its height by horizontal rings placed in the interior or above and
furnished with a similar circle of holes.
A socket m is provided to receive the pin k for supporting the incandescence
mantle 1. To the tube a is secured as usual the gallery n for the reception of
the lamp chimney o. The whole is arranged in the ordinary manner with the disc q
upon the Bunsen tube p.
The action is as follows: The gas admitted through the lower Bunsen nozzle or tube
draws in atmospheric air and impinges with the same against the upper cover plate c
of the tube a. In consequence of this an eddy is produced in the chamber b,
causing intimate mixing of the gas and air. The mixture then passes at a higher
pressure through the circle of holes in the disc c into the tubes d or shafts 9 or
into the annular space hi and, after being lighted at the upper edge of the same
burns as a blue flame cone. At the lower edge of the flame cone a special cone of
small pointed flames is thus formed due to the division of the burner head by the
tubes, shafts, or holes. This circle of flames is distinctly perceptible after the removal
of the incandescence mantle, as in contradistinction from the blue flame cone, it
possesses a tint verging on green. By lateral radiation it exerts a strong heating
action upon the lower part of the incandescence mantle so that this part will emit
light of the same intensity as the upper part of the mantle.

page_text: Having now particularly described and ascertained the nature of my said inven-
tion and in what manner the same is to be performed, 1 declare that what I
claim is :-
1. An incandescence gas burner in which the tube a adapted to be slid upon the
Bunsen tube is provided at its upper end with a trumpet-like enlargement 6 serving
as a mixing chamber, the upper cover plate c being furnished near its outer edge
with a circle of apertures or holes, above which are arranged corresponding tubes d,
shafts g, or the concentric tubes i substantially as described.
2. Incandescence gas burners arranged and constructed substantially as described
with reference to the drawings.
Dated this 8th day of April 1896.
WHEATLEY & MACKENZIE,
40, Chancery Lane, London, W.C., Agents.