Year: 1898

page_text: I, CARL EVALD TÖRNER, of 32, Kungsgatan, Stockholm, Sweden, Superintendent,
do hereby declare the nature of this invention to be as follows:-
This invention refers to improvements in oil-stoves and the like and is more
especially intended for use on oil-stoves in which the pressure required in the
reservoir is produced by pumping or by similar means, its object being to do
away with the necessity of using the pump when starting the stove, as in the forms
of such apparatus heretofore in use. The invention, however, is also applicable to
oil-stoves without a pumping-arrangement.
In the accompanying drawing, an oil-stove arranged in the manner referred
to is shown, in Fig. 1 in a vertical section, and in Fig. 2 in a plan-view.
According to this invention the petroleum or kerosene is forced from the
reservoir A, not directly up into the burner-pipe B, but first up to a cup C or
the like which is closed at the top and located at the upper portion of the reservoir,
said cup being provided with two conduits or pipes, E and F, one of which, E,
terminates with its lower end just above the bottom of the reservoir and with
its upper end at the upper portion of the cup, while the other pipe. F, leads
from the bottom or lower portion of the cup C to the burner-pipe B. When air
is pumped into the reservoir A by means of the air-pump G, the petroleum or
kerosene rises in the pipe E up into the cup C and from the latter through the
pipe F up to the burner-pipe. When the stove is to be used for the first time,
this act of pumping must be performed before the ignition of the stove which
latter operation is carried out in the usual manner, for instance by heating the
burner by means of a spirit-flame. When the stove is to be put out of use, it
is only necessary to let out the air from the reservoir in the usual manner.
portion of the kerosene contained in the burner-pipe B and cup C then runs back
into the reservoir, but, since the surface of kerosene in the cup cannot sink below
the upper orifice of pipe E, a quantity of kerosene will always remain, and the
surface of the kerosene in burner-pipe B will occupy the same height as that
in the cup C, ie. it will be on a level with the upper orifice of pipe E. The latter
pipe should reach to such a height that the surface of kerosene in the burner-
pipe B does not sink below the spirit-cup D. When the stove is to be used next,
A

page_text: the kerosene remaining in the upper part of the burner-pipe will vaporize, and
consequently no special pumping will be required for setting the stove burning.
The reservoir A together with the other parts of the stove may be placed on a
tray H or the like on which the arms K serving to carry the cooking-vessel are
also mounted.
Evidently, the arrangement described is also applicable to oil-stoves without
an air-pump, where the required pressure in the reservoir is produced in some
other manner, for instance by heating the air enclosed in the reservoir. More-
over, various modifications in detail may be made without departing from the
fundamental idea of the invention, viz., to connect the fuel-reservoir with the
burner by means of a suitable system of conduits in such a manner that the kero-
sene will be retained in the immediate proximity of the burner, even on the
discontinuance of the pressure in the reservoir, so that pumping will not be
required when the stove is to be set burning. By arranging the burner at a
suitable level with relation to the cup C to prevent the kerosene, when the
pressure ceases in the reservoir, from sinking below the portion of the burner
where the vaporization takes place, the stove can be made to burn a
long while
without the need of pumping especially if the cup C is made of good size.
place of letting the pipe E reach up to the upper part of the cup C, it is, of
course, possible to let it terminate lower down, for instance at the bottom of the
cup, if only it be provided with a valve which allows the kerosene to rise from
the reservoir into the cup while preventing it from flowing in the opposite direc-
tion. The cup C may be dispensed with if the pipes E and F are made to pass
over one directly into the other, said pipes then being suitably provided or
connected with an enlarged joining-piece which serves as a reservoir. The
pipes E and F may, finally, be replaced respectively by two or more pipes if
required.
In
I, CARL EVALD TÖRNER, of 32, Kungsgatan, Stockholm, Sweden, Superintendent,
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—
This invention refers to improvements in oil stoves and the like and is more
especially intended for use on oil-stoves in which the pressure required in the
reservoir is produced by pumping or by similar means, its object being to do
away with the necessity for using the pump when starting the stove, as in the forms
of such apparatus heretofore in use. The invention, however, is also applicable to
oil-stoves without a pumping-arrangement.
In the drawing filed with the Provisional Specification, an oil-stove arranged
in the manner referred to is shown, in Fig. 1 in a vertical section, and in Fig. 2
in a plan-view.
According to this invention the petroleum or kerosene is forced from the
reservoir A, not directly up into the burner-pipe B, but first up to a cup C or
the like which is closed at the top and located at the upper portion of the reservoir,

page_text: A
said cup being provided with two conduits or pipes, E and F, one of which, E,
terminates with its lower end just above the bottom of the reservoir and with
its upper end at the upper portion of the cup, while the other pipe, F, leads
from the bottom or lower portion of the cup C to the burner-pipe B. When air
is pumped into the reservoir A by means of the air-pump G, the petroleum or
kerosene rises in the pipe E up into the cup C and from the latter through the
pipe F up to the burner-pipe. When the stove is to be used for the first time,
this act of pumping must be performed before the ignition of the stove which
latter operation is carried out in the usual manner, for instance, by heating the
burner by means of a spirit-flame. When the stove is to be put out, it
is only necessary to let out the air from the reservoir in the usual manner.
portion of the kerosene contained in the burner-pipe B and cup C then ruus back
into the reservoir, but, since the surface of kerosene in the cup cannot sink below
the upper orifice of pipe E, a quantity of kerosene will always remain, and the
surface of the kerosene in the burner-pipe B will occupy the same height as that
in the cup C, i.e., it will be on a level with the upper orifice of pipe E. The latter
pipe should reach to such a height that the surface of kerosene in the burner-
pipe B does not sink below the spirit-cup D. When the stove is to be used next,
the kerosene remaining in the upper part of the burner-pipe will vaporize, and
consequently no special pumping will be required for setting the stove burning.
The reservoir A together with the other parts of the stove may be placed on a
tray H or the like on which the arms K serving to carry the cooking-vessel are
also mounted.
Evidently, the arrangement described is also applicable to oil-stoves without
an air-pump, where the required pressure in the reservoir is produced in some
other manner, for instance by heating the air enclosed in the reservoir. More-
over, various modifications in detail may be made without departing from the
fundamental idea of the invention, viz., to connect the fuel-reservoir with the
burner by means of a suitable system of conduits in such a manner that the kero-
sene will be retained in the immediate proximity. of the burner, even on the
discontinuance of the pressure in the reservoir, so that pumping will not be
required when the stove is to be set burning. By arranging the burner at a
suitable level with relation to the cup C to prevent the kerosene, when the
pressure ceases in the reservoir, from sinking below the portion of the burner
where the vaporization takes place, the stove can be made to burn a long while
without the need of pumping especially if the cup C is made of good size.
place of letting the pipe E reach up to the upper part of the cup C, it is, of
course, possible to let it terminate lower down, for instance at the bottom of the
cup, if only it be provided with a valve which allows the kerosene to rise from
the reservoir into the cup while preventing it from flowing in the opposite direc-
tion. The cup C may be dispensed with if the pipes E and F are made to pass
over one directly into the other, said pipes then being suitably provided or
The
connected with an enlarged joining-piece which serves a reservoir.
pipes E and F may, finally, be replaced respectively by two or more pipes, if
required.
3.9
In
Having now particularly described and ascertained the nature of my said
invention, and in what manner the same is to be performed, I declare that what
I claim is
1. In oil-stoves and similar apparatus where the oil (kerosene) is forced by air-
pressure from the oil-reservoir to the burner to be there vaporized, the arrange-
ment in which the reservoir (A) communicates with the burner by means of a
cup (C) or the like which is closed at the top and arranged at the upper portion
of the reservoir, said cup being provided with two conduits or pipes (E and F)
one of which (E) terminates with its lower end just above the bottom of the
reservoir and with its upper end at the upper portion of the cup, while the other
pipe (F) leads from the bottom or lower portion of the cup (C) to the burner, for

page_text: the purpose of retaining the oil (kerosene) in the proximity of the burner, even
on the discontinuance of the pressure in the reservoir (A), so as to make pumping
unnecessary when the stove is to be set burning.
2. In an oil-stove arranged in accordance with Claim 1, the modified arrange-
ment in which the cup (C) is dispensed with and the pipes (E and F) pass over
one into the other either directly or through an intermediate enlargement serving
as a reservoir.
3. In an oil-stove arranged in accordance with Claims 1 or 2, the modified
arrangement in which two or more pipes are substituted for one or each of the
pipes and F) previously mentioned.
Dated this 18th day of February 1800
CRUIKSHANK & FAIRWEATHER,
Chartered Patent Agents, 62, Saint Vincent Street, Glasgow.
Agents for the Applicant.