Improvements in the Manufacture of Heating and Illuminating Gas.
Year: 1894

page_text: Date of Application, 6th July, 1894
Complete Specification Left, 3rd Apr., 1895-Accepted, 6th July, 1895
PROVISIONAL SPECIFICATION.
Improvements in the Manufacture of Heating and Illuminating Gas.
1, EDUARD DAUS of Stubenrauchstrasse, Schöneberg near Berlin, Germany
Merchant, do hereby declare the nature of this invention to be as follows:-
-
This invention relates to the production of an intensely hot flame. from illu-
minating or water gas mixed with air which in combination with a heating body is
to serve for illuminating and without the heating body, for heating purposes. The
apparatus for this purpose comprises two meters one for gas and one for air. The
gas meter is in communication with a gas supply from which it receives gas and is
driven by the current of the same. The air meter draws in air and is coupled to
and driven from the gas meter. The quantities of air and gas are regulated the air
being equal to or greater in quantity than the gas. Upon leaving the respective
meters; the two bodies become mixed together and are then conducted through
pipe to burners suitable for burning illuminating gas and for heating purposes.
Toted this 6th dow of July 1904
CAPITAINE & VON HERTLING,
89 Chancery Lane, London, W.C., Agents for the Applicam.
Improvements in the Manufacture of Heating and Illuminating Gas.
I, EDUARD DAUS of Stubenrauchstrasse, Schöneberg near Berlin, 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 :-
The object of this invention is the production of an intensely hot flame by means
of illuminating or water gas which in combination with a glow attachment serves
for illuminating and without the glow attachment for heating purposes.
In the gas glow light arrangenients hitherto in use there is room for considerable
improvement both as regards keeping constant the composition of the gaseous
mixture and as regards economy in the consumption of gas. For the purpose of
effecting these improvements there is in the apparatus of the invention for illu-
minating by means of a glow attachment or for heating purposes, on the one hand:
a simple burner in the use of which no gas is wasted and on the other hand a gas
mixing appliance by which the gaseous mixture is prepared in the most favourable
proportions before it reaches the burner.
It is claimed that the combination of a mixing appliance by which air is mixed,
in a determined quantity with the gas, with a single conduit through which the
mixture containing a large quantity of air is conducted to a simple slit or tubular
burner such as hitherto employed for illuminating by a flame or for heating
purposes,. is novel. It is designed by this novel means to obtain a gaseous mixture
which with a minimum expenditure of gas will give the greatest heating effect in the
manner that, without the use of a "Bunsen "burner a constant quantity of gaseous

page_text: mixture is brought to the burner and so that the apparatus provided with a con-
necting and disconnecting device, for example the coupling K may at any time be
used for illuminating by a flame by disconnecting the air suction drum. These
advantages can only be obtained with a mixing appliance placed at some distance
from the burner and which supplies the air to the gas in a constantly like quantity
and by doing away with all mixing burners and using a simple tubular or slit
burner. Further the use of the gas mixing appliance for glow lights and the com-
bination of the same with a burner of simple make for illumination by means of a
glow attachment, allows of the application and regulation of pressure during
combustion whilst the composition of the gaseous mixture remains constant, which
is not possible where burners are used which simultaneously effect the mixing of
the gases.
In the drawing the apparatus of the invention is shewn in part sectional side
elevation.
A is the mixing apparatus, B the burner and C the glow attachment or glow
body made of a fire proof substance such as burnt magnesia, clay, lime and the like
underneath which glow body is placed the burner B of the simple slit or tube kind
such as are used in ordinary gas lighting and to the burner is connected the pipe
leading to the mixing apparatus A. This consists of two casings T, T' in each of
which is carried a rotary drum both drums being mounted on the same shaft W.
The drum T in casing T is chambered and serves for drawing and delivering air,
and the other drum in casing T' for measuring and delivering gas.
Both of of the
drums are in communication with a pipe leading to the burner pipe. The gas drum
and casing has preferably the form of an ordinary gas meter and like this is
operated by the pressure of the gas in the outside gas supply pipe G. The drum
thus driven transmits its motion to the air drum so that for a given quantity of gas
there is a certain quantity of air delivered for mixture with the same.
drum constructed with air vanes K and is so designed that there is no back pressure
for it to overcome in delivering the air, which enters at one side and passes out at
the top as shewn whereby the height or capacity of the drum chambers formed by
the vanes K may be regulated by the height of the surface of the water N which is
supplied to the drum casing, a water gauge M being mounted on the drum casing
by which the level of the water may be observed. By means of the vanes K
several chambers are formed the capacity of which is regulated by the height of
the water.
The air
The apparatus works as follows:-The gas flowing to the gas drum drives this
and the air drum also. This latter delivers air to a pipe leading to the gas pipe
and when gas is passing thereto from the gas drum in a measured manner, the
mixed gas and air then passing to the lighted burner where it produces a noiseless
blue flame by which the glow attachment is heated to a white glow diffusing an
intense light.
With burners which also act as mixers a constant composition of the mixture is
not attainable as the pressure of the gases in the burner pipe varies, sometimes
more and sometimes less air being carried along, whilst in the mixing apparatus of
this invention the air is drawn by chambers which when once made suitable for a
certain mixture always supply the same quantity, further such mixing burners
cannot also at once be used for illuminating by a flame.
Having now particularly described and ascertained the nature of my said inven-
tion and in what manner the saine is to be performed, 1 declare that what I
claim is :-
1. The production of an intensely hot flame by the use of a mixture of gas and
air prepared before the entrance of the same into the burner pipe, in the manner
that a drawing or suction device in connection with an ordinary gas meter fixed to
a gas supply pipe draws air and mixes the same in a suitably regulated quantity
with the gas as this leaves the meter and before entering the burner pipe, which
mixture when conducted to and ignited at ordinary gas burners gives an intensely

page_text: hot non illuminating flame suitable for heating purposes and also a gas glow light
by applying it to heat a suitable fire proof material to a white glowing heat,
substantially as described and shewn.
2. In the apparatus referred to the arrangement of a connecting and disconnecting
mechanism in connection with the air drum so that the apparatus may at any time
by disconnecting the air drum be used for simple flame illumination, substantially
as described.
Dated this 3rd day of April 1895.
CAPITAINE & VON HERTLING,
89 Chancery Lane, London, W.C., Agents for the Applicant.