IMPROVEMENTS IN PETROLEUM HEATING APPARATUS 33
Year: 1883

page_text: LETTERS PATENT to Robert Schulz, of the City of Dresden, in the Kingdom
of Saxony and German Empire for an Invention of "IMPROVEMENTS IN
PETROLEUM HEATING APPARATUS
33
PROVISIONAL SPECIFICATION left by the said Robert Schulz at the
Office of the Commissioners of Patents on the 16th November 1883.
ROBERT SCHULZ of the City of Dresden in the Kingdom of Saxony and German
Empire. IMPROVEMENTS IN PETROLEUM HEATING APPARATUS.
'
My Invention relates to improvements in Petroleum heating apparatus.-The
apparatus is heated by means of fluid carbons such as Petroleum, Benzine, Ligroine,
Naphta and other hydro carbons.
My Invention consists:-
a) in the process of consuming or burning fluid hydro carbons for heating
purposes.
b) in the construction of a heating apparatus for such said purpose
For the sake of curtness I shall simply mention Petroleum in the following
specification and thus avoid the repetition of the denominations of the other various
hydro carbons which can be employed in my said heating apparatus.
The characteristic feature in the first part or process lies in converting the
petroleum into spray thus finely dividing the same into possibly small particles
surrounded by air which is either effected by means of compressed air or steam.
The Petroleum reservoir or vessel is filled from the exterior by means of an
opening closed by a suitable cock or valve.
The pipe or tube leads from the bottom of the vessel into a suitable ejector-
Compressed air is led by a mechanical agitator through the valve in the windchest
and passes out through a second ejector.
In consequence of the very fine opening in the ejector the air is ejected with
great vehemence carries the petroleum, standing in the said pipe or tube, with it
and converts the same into very fine spray.
The mixture of petroleum and air is ignited at the conical end of a tube and is
plentifully provided with atmospheric air by means of a suitable ring which is
provided with perforations.

page_text: The said ring can be turned in order to regulate the quantity of air admitted to
the flame
When the cock is turned the ejector ceases to operate and the flame is
extinguished
The flame is led upwards and downwards in an original system of tubes so that
the warmth contained in the same is imparted to as large a surface as possible
The spray ejected by the said ejector is ignited directly above the nozzle to the
same and is led upwards where the flame separates, passes down a tube or pipe and
eventually through another tube, again upwards to the flue-This system of tubes
arranged concentrically to each other, offers the greatest possible surface for the
reception of the heat generated
A sufficient draught is produced by means of the intense heat engendered and
the consumption is so rational that visible products of consumption are not present
in consequence of which a small flue can be employed for conducting off the
carbonic acid and steam produced without any special flue arrangement or chimney
being necessary.
A valve is arranged. at the upper part of the air vessel for regulating the
pressure.
A space is arranged at the upper end of the tube for culinery purposes.
In order to avoid the use of compressed air which renders the employment of a
mechanical agitator necessary steam can be advantageously employed-In such
case a small steam generator is substituted for the air reservoir and is heated by a
small flame situate beneath the said generator or boiler
The steam generated streams into the ejector and possesses sufficient expansion
to suck the petroleum from the tube leading from the bottom of the vessel, and
convert the same into spray
The generator or boiler can be filled with water by means of the supply pipe
which is provided with a suitable cock and is connected with an open water vessel
which is arranged at the top of the apparatus to assure the necessary dampness of
the atmosphere.
This method of heating can be applied with special advantage for driving motors
or for heating steam boilers.
In the first case the necessary compressed air can be readily obtained by
connecting an air pump connected with the motor whereas in the latter case the
exhaust steam can be employed for converting the petroleum into spray,

page_text: SPECIFICATION in pursuance of the conditions of the Letters Patent filed by
the said Robert Schulz in the Patent Office on the 15th May 1884.
ROBERT SCHULZ of the City of Dresden in the Kingdom of Saxony and German
Empire IMPROVEMENTS IN PETROLEUM HEATING APPARATUS
My Invention relates to improvements in Petroleum heating apparatus. The
apparatus is heated by means of- fluid hydrocarbons such as Petroleum Benzine,
Ligroin, Naphta and other hydrocarbons
My said Invention consists,
a) in the process of consuming or burning fluid hydrocarbons for heating
purposes.
b) in the construction of a heating apparatus for such said purpose
For the sake of curtness I shall simply mention petroleum in the following
specification and thus avoid the repetition of the denominations of the other various
hydrocarbons which can be employed in my said heating apparatus.
The characteristic feature in the first part or process lies in converting the
petroleum into spray thus finely dividing the same into possibly small particles
surrounded by air which is either effected by means of compressed air or steam.
Figures 1 and 2 are vertical sections of my improved heating apparatus.
A is the petroleum reservoir or vessel which is filled from the exterior by means
of an opening closed by a suitable cock or valve
The pipe or tube a leads from the bottom of the vessel A into the ejector b—
Compressed air is led by a mechanical agitator through the valve c (Figure 1) into
the wind chest B and passes out through the ejector b
In consequence of the very fine opening in the ejector the air is ejected with
great vehemence, carries the petroleum standing in the tube a with it and converts
the same into very fine spray.
The mixture of Petroleum and air is ignited at the conical end of the tube b
and is plentifully provided with atmospheric air by means of the ring k which is
provided with perforations.
k
The said ring & can be turned in order to regulate the quantity of air admitted
to the flame
When the cock g is turned the ejector ceases to operate and the flame is
extinguished.
The flame is led upwards and downwards in an original system of tubes so
that the warmth contained in the same is imparted to as large a surface as
possible
The spray ejected by the said ejector is ignited, directly above the nozzle to the
same and is led upwards where the flame separates, passes down a tube or pipe D
and eventually through the tube E again upwards to the flue.
This system of tubes arranged concentrically to each other offers the greatest
possible surface for the reception of the heat generated. A sufficient draught is
produced by means of the intense heat engendered and the consumption is so
rational that visible products of consumption are not present in consequence of
which a small flue e can be employed for conducting off the carbonic acid and
steam produced without any special flue arrangement or chimney being necessary.
A valve fis arranged at the upper part of the air vessel B for regulating the
pressure
A space F is arranged at the upper end of the tube D for culinary purposes. In
order to avoid the use of compressed air which renders the employment of a
mechanical agitator necessary steam can be advantageously employed as shown in
Figure 2

page_text: In such case a small steam generator B is substituted for the air reservoir and is
heated by a small flame m situate beneath the said generator or boiler B
The steam generated streams into the ejector b and possesses sufficient expansion
to suck the petroleum from the tube a and convert the same into spray
The generator or boiler B can be filled with water by means of the supply pipe
which is provided with the cock d and is connected with the open water vessel W
which is arranged at the top of the apparatus to assure the necessary dampness of
the atmosphere.
This method of heating can be applied with special advantage for driving motors
or for heating steam boilers. In the first case the necessary compressed air can be
readily obtained by connecting an air pump connected with the motor whereas in
the latter case the exhaust steam can be employed for converting the petroleum
into spray.
Having now described my said Invention and the manner in which the same
is to or may be carried into effect what I claim and desire to secure by Letters
Patent is
1-The method of converting petroleum or other hydrocarbon into spray through
the ejector 6 by means of compressed air or steam for the purpose of attaining a
rational perfect combustion in heating arrangements substantially as described in
the foregoing specification and shown in the accompanying drawings.
2-The construction arrangement and application of the heating device charac-
terised by the fire canals formed by the tubes C. D. E arranged within each other
in combination with the petroleum reservoir A, wind-chest B and the ejector b or
any mere modification of the same substantially as described in the foregoing
specification and shown in the accompanying drawings
3-The general construction arrangement and employment of the parts of my
said heating apparatus for the purpose specified substantially as described in the
foregoing specification and shown in the accompanying drawings.
In Witness whereof I the said Robert Schulz have hereunto set my hand and
seal this twentyeighth day of April in the year of our Lord one thousand eight
hundred and eighty four
Witnesses
OTTO WOLFF
RUDOLF SCHMIDT.
RUBER SUCES
(NOT)