IMPROVEMENTS LIGHTING BOILER FURNACE AND OTHER FIRES, AND IN APPARATUS THEREFOR
Year: 1878

page_text: LETTERS PATENT to Gerard Wenzeslaus von Nawrocki, of the Firm J. Brandt
.
IN
and G. W. von Nawrocki, Engineers and Patent Agents, of Leipzigerstrasse,
124, Berlin, German Empire, for the Invention of "IMPROVEMENTS
LIGHTING BOILER FURNACE AND OTHER FIRES, AND IN APPARATUS THEREFOR."
A communication from Julius Siegert, of Berlin, in the German Empire.
Sealed the 24th December 1878, and dated the 26th June 1878.
PROVISIONAL SPECIFICATION left by the said Gerard Wenzeslaus von
Nawrocki at the Office of the Commissioners of Patents on the 26th June
1878.
GERARD WENZESLAUS VON NAWROCKI, of the Firm J. Brandt and G. W. von
Nawrocki, Engineers and Patent Agents, of Leipzigerstrasse, 124, Berlin, German
Empire. "IMPROVEMENTS IN LIGHTING BOILER FURNACE AND OTHER FIRES, AND
IN APPARATUS THEREFOR." A communication from Julius Siegert, of Berlin, in
the German Empire.
The ordinary mode of lighting the fires in locomotive and other fire-places by
means of wood shavings, oily rags, and such like is generally expensive and
tedious, especially when time is an object, as, for instance, with steam fire engines.
According to this Invention the coals on the grate are lit by means of oxy-
hydrogen gas (fulminating gas), an explosive mixture of lighting gas and atmo-
spheric air, as herein-after described, which only takes from 10 to 20 minutes.
For the purpose of this Invention an apparatus is used which consists of a:
horizontal gas-supply pipe with one, but, by preference, several upright pipe
branches terminating in cones, with outer superposed cone pipes furnished with
openings for entry of air, the mixture of gas and air entering receiving nozzles or
pipes, and with outer sliding sleeves or sockets for more or less covering the air-
supply apertures, so as to ensure the entry of the correct amount of air for the
Perico G71

page_text: production of intense flames. The grate should be well and evenly covered with
coals, say 3 to 4 inches deep, except in that opening between two furnace bars
through which the aforesaid apparatus is inserted from below, and in this aperture
is placed a box-shaped casing or plates for the oxyhydrogen gas to pass up through
or between. Openings may be provided through the sides, and one or more narrow
slits at the top.
The coals next to the apparatus should be dry. The lighting gas may be
Gunnlied her have ins
SPECIFICATION in pursuance of the conditions of the Letters Patent filed by
the said Gerard Wenzeslaus von Nawrocki in the Great Seal Patent Office on
the 24th December 1878.
GERARD WENZESLAUS VON NAWROCKI, of the Firm J. Brandt and G. W. von
Nawrocki, Engineers and Patent Agents, of Leipzigerstrasse, 124, Berlin, German
Empire. "IMPROVEMENTS IN LIGHTING BOILER FURNACE AND OTHER FIRES, AND
IN APPARATUS THEREFOR." (A communication from Julius Siegert, of Berlin, in
the
German Empire.)
The ordinary mode of lighting the fires in locomotive and other fire-places by
means of wood shavings, oily rags, and such like is generally expensive and tedious
especially when time is an object, as, for instance, with steam fire engines.
According to this Invention the coals on the grate are lit by means of oxy-
Lydrogen gas (fulminating gas) au explosive mixture of lighting gas and atmo-
spheric air.
For the purpose of this Invention an apparatus is used which consists of a hori-
zontal gas-supply pipe with one, but, by preference, several upright pipe branches
terminating in cones with outer superposed cone pipes furnished with openings for
entry of air, the mixture of gas and air entering receiving nozzles or pipes, and
with outer sliding sleeves or sockets for more or less covering the air-supply
apertures so as to ensure the entry of the correct amount of air for the production
of intense flames. The grate should be well and evenly covered with coals, say
3 to 4 inches deep, except in that opening between two furnace bars through which
the aforesaid apparatus is inserted from below, and in this aperture is placed a
box-shaped casing or plates.
.
Figure 1 of the accompanying Drawings is an outside and partly sectional
elevation of an apparatus constructed according to this Invention and suitable for
the purpose of the same..
Figure 2 is a separate sectional view of one burner, and Figure 3 a cross section
of same..
•
. Figure 3a is an outside view, and Figure 3b an end view of the cone pipe with
air-admission apertures.
-

page_text: Figure 4 is a horizontal section through line A, B, Figuro 1; and Figure 5, a
section through C, D, Figure 1.
Figure 6 is an elevation, and Figure 6ª an end view of the regulating outer
sliding sleeve.
Figure 7 a vertical section, and Figure 7 a plan of the gas cone pipe.
a is a horizontal lighting gas-supply pipe, provided with four upright branch
pipes b, each fitted with a brass cone pipe c, shewn separately at Figures 7 and 7".
The gas passes through the cones c into the outer superposed cone pipes d, where
it commingles with atmospheric air admitted by the apertures in such pro-
portions as to form oxyhydrogen fulminating gas. ƒ are sliding sleeves for regu-
lating the air admission as required. The mixture enters the chambers 9 which
are box shaped and form the burners, having a slit above. When these burners
are lit a very intense flame is obtained, whereby, for instance, the coals on the
grate of a locomotive boiler may be lit up in about 15 or 20 minutes. The grate
should be well covered with a layer of coals, say, about 3 or 4 inches deep, in the
aperture between the grate bars where the igniting apparatus is inserted; there
should also be put in from below a box-shaped casing or plates reaching about four
inches above the grate so that the coals do not rest on the apparatus.
The coals, which are first thrown in over and round this aperture, should be dry
and not wetted. The connection between the apparatus and the gas pipe may be
made by means of an india-rubber hose.
To reduce the number of mixing pipes say, to one or two, would simplify the
apparatus, but occasion loss of contact area between gas and air, and thus prevent
the more intimate mixture of same. On the other hand, to increase the number of
burners would cause a better mixture of gas and air, but render the apparatus more
expensive or complicated. Four burners have proved most suitable in some casos.
The number must to a certain extent depend on circumstances.
The advantages of this apparatus are,-
-
1. A. considerable saving by eutirely doing away with the use of kindling
shavings, or wood, or other means wherever common lighting gas can be had, thus
also preventing fraudulent use of such kindling materials.
3. Small cost of the apparatus.
I claim in respect of this Invention,-
Firstly. Igniting stone or other coals by means of a mixture of coal gas and
atmospheric air, that is, the so called oxyhydrogon fulminating gas, substantially
as described.
Secondly. The construction of the igniting apparatus for the said purpose, adapted
and modified as required.
In witness whereof, I, the said Gerard Wenzeslaus von Nawrocki, have hercunto
set my hand and seal, this Twenty-first day of December, in the year of our
Lord One thousand eight hundred and seventy-eight.
GERARD WENZESLAUS VON NAWROCKI.
(L.S.)