Improvements in Oil Stoves or Lamps for Heating Purposes.
Year: 1895

page_text: Date of Application, 10th Jan., 1895
Complete Specification Left, 21st Mar., 1895-Accepted, 4th May, 1895
PROVISIONAL SPECIFICATION.
Improvements in Oil Stoves or Lamps for Heating Purposes.
I, OSCAR EHRENFRIED WOLLERT, of 5, Bauergatan, Stockholm, in the
Kingdom of Sweden, Civil Engineer, do hereby declare the nature of this
invention to be as follows:--
My invention relates to stoves or lamps for heating purposes adapted to burn
paraffine or similar oil and in which a vapour burner is employed.
According to my invention I provide an oil reservoir with which I combine an
air pump for creating a pressure within the reservoir in order to force the oil to the
burner.
The burner comprises a horizontal table or plate preferably connected at one
side with the pipe through which the oil flows to the burner, and having at the
other side a pipe which projects down and beneath the plate and which is provided
with a nozzle through which the vaporized oil escapes and at which it burns so
that the flame produced impinges upon the underside of the table or plate.
Through the table or plate is formed a circuitous passage through which the oil is
caused to pass to the nozzle whereby it is thoroughly vaporized before being
burnt.
In practice I prefer to make my plate or table square and connect it at one side
with two arms in connection with the oil pipe and at the other side with two pipes
communicating with the nozzle. I also find it advisable to make the passage
in the plate or table with one or more cleaning holes normally closed by screw
plugs.
A valve serves for allowing the escape of the air when the stove is not required,
or for regulating the pressure.
Around the burner I advantageously place a ring in order to deflect the flame in
the proper direction, I also arrange beneath the burner a dish or receptacle for
receiving spirit for initially heating the burner.
In conjunction with the reservoir I advantageously arrange uprights or supports
for carrying or supporting vessels or the like to be heated.
Dated the 10th day of January 1895.
COMPLETE SPECIFICATION.
Improvements in Oil Stoves or Lamps for Heating Purposes.
I, OSCAR EHRenfried WolleRT, of 5, Bauergatan, Stockholm, in the
Kingdom of Sweden, Civil Engineer, 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 :-
My invention relates to stoves or lamps for heating purposes adapted to burn
paraffine or similar oil and in which a vapour burner is employed.

page_text: Figure 1 is an elevation of an oil stove or lamp for heating purposes constructed
according to my invention :
Figure 2 is an elevation of the burner taken at a different angle: and
Figure 3 is a plan of the same.
According to my invention I provide an oil reservoir A with which I combine
an air pump p for creating a pressure within the reservoir in order to force the oil
to the burner.
The burner comprises a horizontal table or plate d preferably connected at the
corners of one side, as shewn, with the pipe a by means of two branch pipes b, c
through which the oil flows to the burner, and having at the opposite side a
curved pipe g, the two branches e and f of which project down from the corners of
this side beneath the plate d, the pipe g being curved inwards at its lower part
where it is provided with a nozzle m through which the vaporized oil escapes and
at which it burns so that the flame produced impinges upon the underside of the
table or plate d. Through the table or plate d is formed a zig-zag or circuitous
passage, h, i, through which the oil is caused to pass to the nozzle m whereby it
is thoroughly vaporized before being burnt.
The two branch pipes b and c open into that part of the passage / which runs
along one side of the plate d, while the upwardly directed ends e and f of the
pipe g open into the part k of the passage running along the opposite side of the
plate.
In practice I prefer to make my plate or table square as shewn. I also find it
advisable to make the passage in the plate or table with one or more cleaning holes
normally closed by screw plugs such as n.
A valve o serves for allowing the escape of the air when the stove is not required,
or for regulating the pressure.
Around the burner I advantageously place a ring in order to deflect the flame
in the proper direction. I also arrange beneath the burner a dish or receptacle s
for receiving spirit for initially heating the burner.
In conjunction with the reservoir AI advantageously arrange uprights or
supports r, r for carrying or supporting vessels or the like to be heated.
The circuitous passage may, if required, be made longer than shewn on the
drawing, that is to say, it may run forwards and backwards several times, whereby
the oil will be more completely vaporized. Or I can use a spiral passage or a
passage of other suitable shape which will allow the fuel to circulate a sufficient
time above the flame while passing from the ascending to the descending pipes, the
principal feature of the invention being the communication formed between the
said ascending and descending pipes. I have shewn this communication effected
by a passage through a plate d, as I find that this arrangement causes the heating
to be uniform, but it is obvious that the said communication can be effected
through an ordinary pipe bent into a zig-zag or other suitable shape so as to form
an angular or curved passage situated in a plane perpendicular to the flame issuing
from the burner.
Having now particularly described and ascertained the nature of my said inven-
tion and in what manner the same is to be performed, I declare that what 1
claim is :-
1. A vapour burner for oil stoves or lamps for heating purposes in which com-
munication, between ascending pipes leading from the oil reservoir and a descending
pipe on which the burner-nozzle is arranged, is effected through a passage running
in a zig-zag, spiral or other direction across the flame for the purpose of obtaining
an effective and uniform vaporization of the oil, substantially as hereinbefore
described.
2. A vapour burner for oil stoves or lamps for heating purposes, provided with a
passage running in zig-zag, spiral or other direction across the flame, the said
passage forming communication between ascending pipes communicating with the

page_text: oil reservoir and with the branches of a curved pipe on the middle part of which the
burner-nozzle is arranged substantially as hereinbefore described and illustrated in
the accompanying drawing.
3. In an oil stove or lamp having a burner of the kind claimed in the first
claiming clause, arranging the circuitous passage of the burner in a plate such as d
in order that the heating of the passage may be more uniform in consequence of
the distribution of the heat throughout the plate, substantially as set forth.
4. In an oil stove or lamp having a burner of the kind referred to in the first
and third claiming clauses, the arrangement of cleaning holes made in the plate in
extensions of the various parts of the circuitous passage, the said holes being
normally closed by screw-plugs, substantially as hereinbefore described.
5. The improved oil stove or lamp for heating purposes hereinbefore described
and illustrated in the accompanying drawing.
Dated this 21st day of March 1895
G. F. REDFERN & Co.,
4, South Street, Finsbury, London, Agents for the Applicant.