IM- PROVEMENTS IN APPARATUS FOR EVAPORATING AND FOR HEATING WATER."
Year: 1878

page_text: LETTERS PATENT Adolf Kux, of Berlin, Germany, for the Invention of " IM-
PROVEMENTS IN APPARATUS FOR EVAPORATING AND FOR HEATING WATER."
PROVISIONAL SPECIFICATION left by the said Adolf Kux at the Office of
the Commissioners of Patents on the 5th July 1878.
ADOLF KUX, of Berlin, Germany. " IMPROVEMENTS IN APPARATUS FOR EVAPO-
RATING AND FOR HEATING WATER."
In this combined flue and tubular boiler arrangement the fire-box or flue is
cylindrical in the front part where the grate is situated, and conically diminishing
behind the bridge. The fire-box is placed in the lower part of a cylindrical boiler,
which latter behind is fixed to an end plate also forming the end of an upper partly
circular water and steam space communicating with the aforesaid cylindrical front
boiler. This partly cylindrical part has a flat under side forming the chord to the
circle; the end plate aforesaid also forms the end of a lower partly circular water.
space, the upper
flat side of which forms the chord to the circle; this space com-
municates with the water space in the front boiler.
Between the two flat surfaces of the upper and lower partly cylindrical parts are
fixed a number of water tubes placed so as to break up the flame, and in the hind
part a large water tube or stay for promoting the circulation.
The boiler is partly or wholly enclosed in brickwork, with large side doors and
sometimes end door for sweeping the tubes and other parts. The flame and heated
products of combustion pass from the grate through the conical inner end of the
fire-box flue into the tube space among the tubes, touching the upper and lower.
tube plate, passes round the large tube stay, and then down under the lower water
space and front boiler off to the chimney.
The upper partly cylindrical part is by preference deeper than the lower one..
The back ends of the same are by preference spherical.
For large combination boilers the cylindrical front boiler may have two or more
fire-boxes or flues.
This arrangement is also suitable for utilizing the waste heat from puddling
furnaces and other furnaces or ovens, as the front boiler can be made of such a
length as to prevent the sharp flame from striking the tube system.
It is also suitable as a hot water apparatus, and generally for heating and
evaporating purposes.

page_text: SPECIFICATION in pursuance of the conditions of the Letters Patent filed
by the said Adolf Kux in the Great Seal Patent Office on the 4th January
1879.
ADOLF KUX, of Berlin, Germany.
RATING AND FOR HEATING WATER."
"IMPROVEMENTS IN APPARATUS FOR EVAPO-
In this combined flue and tubular boiler arrangement the fire-box or flue is
cylindrical in the front part where the grate is situated, and conically diminishing
behind the bridge. The fire-box is placed in the lower part of a cylindrical boiler,
which latter, behind, is fixed to an end plate also forming the end of an upper
partly circular water and steam space communicating with the aforesaid cylindrical
front hoiler. This partly cylindrical part has a flat under side forming the chord to
the circle; the end plate aforesaid also forms the end of a lower partly circular water
space, the upper flat side of which forms the chord to the circle; this space coin-
municates with the water space in the front boiler.
Between the two flat surfaces of the upper and lower partly cylindrical parts are
fixed a number of water tubes placed so as to break up the flame, and in the hind
part a large water tube or stay for promoting the circulation.
Figure of the accompanying Drawings is a central longitudinal section on
line A, B, of Figure 2; Figure 2 is a horizontal longitudinal section on line E, F,
Figure 1; and Figure 3 a vertical cross section on line C, D, Figure 1, representing a
combined flue and tubular boiler constructed according to this Invention.
A is a cylindrical boiler, and B a cylindrical fire-box which is combined into a
conical part B', which together with the part A is fastened to the end plate C which
also forms the end plate of the upper partly cylindrical part D and the lower partly
cylindrical part D¹, which are connected by means of the water tubes E, which are
placed so as to break up the flame, and by means of the large water stay or
circulating tube F. The side walls G, G, of the side flues (or one of them) are
here made to take out so as to admit of cleaning and repairing the tubes and tube
plates.
H is an end door which may be fitted for similar purposes where circum-
stances will admit it; L is flap door under the grate J for removing the ashes. The
flame and heated products of combustion pass from the grate through the conical
inner end B¹ of the fire-box flue into the tube space among the tubes E, touching
the upper and lower tube plate, passes round the large tube stay F, and then down
under the lower water space D¹ and front boiler A off to the chimney by a
flue K.
The upper partly cylindrical part D is by preference deeper than the lower one D'.
The back ends of the same are by preference spherical as shewn.
For large combination boilers the cylindrical front boiler may have two or more
fire-boxes or flues.
This arrangement is also suitable for utilzing the waste heat from puddling
furnaces and other furnaces or ovens, as the front boiler can be made of such a
length as to prevent the sharp flame from striking the tube system.
It is also suitable as a hot-water apparatus, and generally for heating and
evaporating purposes.
The advantages of this combined flue and tube boiler are especially that a large
heating surface is obtained in a comparatively small space, and that the heating
surface is played on by the flame and heat in the best manner, also that a large
steam space is obtained, and if desired also a large water space; also, that all parts
are easily accessible for cleaning and repair; also, that the construction is extremely
strong and easily made; and, lastly, that the setting in brickwork is simple.

page_text: And having thus described and ascertained the nature of this Invention, I declare
that I claim, a boiler with one or more fire-box flues in combination with a lower
chamber and an upper chamber both fixed to the same end plate as the aforesaid
boiler, and united by water tubes, all substantially as set forth.
In witness whereof, I, the said Adolf Kux, have hereunto set my hand and.
seal, this Thirty-first day of December, in the year of our Lord One thousand
eight hundred and seventy-eight.
ADOLF KUX. (L.S.)