Improvements in Oil Cooking Stoves.
Year: 1895

page_text: I, HENRY HART, of Balmacarrow Toye. Lisburn, in the County of Down, Ireland,
Gentleman, do hereby declare the nature of this invention to be as follows:-
My invention relates to cooking stoves adapted to be heated by oil.
According to my invention instead of effecting the heating by means of lamps
having wicks, as heretofore, I make use of lamps having vapour burners, that is to
say, burners in which the heat of the flame is used for vaporizing the oil.
The burners proper are connected with an oil reservoir in conjunction with which
is arranged an air pump for producing sufficient pressure in the reservoir for forcing
the oil to the burners.
In practice I find it advantageous to make my lamps with three jets at each side
and to connect the space in which the lamp is placed with an outlet through which
the products of combustion can be conducted to a chimney or elsewhere.
Dated the 14th day of October 1895.
G. F. REDFERN & Co.,
4, South Street, Finsbury, London, Agents for the Applicant.
Improvements in Oil Cooking Stoves.
I, HENRY HART, of Balmacarrow, Toye, Lisburn, in the County of Down, Ireland,
Gentleman, 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 cooking stoves adapted to be heated by oil.
According to my invention instead of effecting the heating by means of lamps
having wicks, as heretofore, I make use of lamps having vapour burners, that is to
say, burners in which the heat of the flame is used for vaporizing the oil.
The burners proper are connected with an oil reservoir in conjunction with which
is arranged an air pump for producing sufficient pressure in the reservoir for forcing
the oil to the burners.
In practice find it advantageous to make my stoves or ovens with lamps
having three jets at each side and to connect the space in which each lamp is placed
with an outlet through which the products of combustion can be conducted to a
chimney or elsewhere.
To enable my invention to be fully understood I will describe it by reference to
the accompanying drawings, in which :-
Figure 1 is a sectional elevation of a stove lamp constructed according to my
invention:
Figure 2 is a section on the line 2-2 of Figure 1:
Figure 3 is a plan of the stove lamp:
ancreative view of my lawn provided with three burners or jets:

page_text: Figure 5 is an elevation of a stove or oven for use with my improved lamp; and,
Figure 6 is a plan of the same.
Referring to Figures 1, 2, 3 and 4 a is the oil reservoir, the said reservoir being
provided with an oil inlet & provided with a screw cap c and with an air outlet l
which can be opened or closed as desired by a scrow plug or valve e.
f is a tubo pussing from the bottom of the reservoir through the top of tho
same and which branches at its upper end into two tubes g, forming a loop or U
and connected at their upper ends by the tube A.
From this tube 4 two other
tubes, pass downwards so as to form a U-shaped tube similar to that formed
by the tubes g, g' is the burner which is arranged in the loop of the U formed
by the two inhes i, as shewn clearly in Figures 1 and 2.
Ais the air pump in the reservoir a, the said pump being provided with a piston k²,
piston rod and valve which is normally kept closed by the spring m.
n is tho
cup placed underneath the burner around the tube the said cup being designed to
receive methylated spirit. for starting the burnor.
The operation of my improved lamp or stove is as follows:-The cap c is removed,
and the reservoir a is then filled with oil through the inlet b. The cap
is then
screwed on and the air outlet closed by screwing up the plug e. Methylated spirit
is now poured into the cup and ignited. The oil in the reservoir a is then forced
up by means of the pump through the tube into the tubes, gandi, which
have become heated by the time from the methylated spirit so that the said oil is
vaporized and issues in the form of vapour through the burner and is ignital.
It will be obvious that, when once started, the burner will remain alight as long
as oil is fed up to it as the heat from the flame will keep the tubes g, g' and i, i con-
stantly hot.
Should it be desired to lower the flame the plug e is slightly unscrewed so as to
allow a portion of the air in the reservoir a to escape whereby the pressure in the
reservoir is diminished. To extinguish the flame the valve e is fully opened so that
all the air in the reservior can escape whereby the flow of oil into the burner
altogether ceases.
When the supply of oil to the burner is giving out it is only necessary to
manipulate the pump so as to obtain increased air pressure in the reservoir a.
Figure is a perspective view of a lamp or stove baving three tubes
burners. The action of the said lamp is identical with that above described.
and
In the stove or oven shewn in Figure 5 o, o are the chambers in which the lamps
are placed, p the oven above the said chambers and the door thereof. ", rare
flues or passages passing from the chambers o, o through the oven p and into the
chamber above the oven and directly underneath the hot plate t. These passages
or flues r, serve to conduct the products of combustion from the lamps through
the oven p, which they heat, into the chamber so as to heat the hot plate t. t is
the outlet through which the products of combustion escape from the chamber o to the
chimney.
When the oven is not to be used for cooking purposes a lamp may be placed in
the centre of the same so as to heat the room in which the oven is placed. It will
be obvious ihn. in practice the oven can ho furnished with a boiler on the hot plate
and with the usual handles and taps.
Having now particularly described and ascertained the nature of my said inven
tion and in what manner the same is to be performed, 1 declare that what I
olaim is :-
1. An oil lamp or stove wherein the reservoir is provided with an air outlet valve
and an air puụp and wherein oil is fed to the burner proper through a tube which
passes over and around the burner proper substantially as, and for the purpose,
hereinbefore described.
2. The manufacture and use of the improved oil lamp or stove, herein before
described and illustrated in Figures 1, 2 and 3 of the accompanying drawings.

page_text: 3. The manufacture and use of the improved oil lamp or stove hereinbefore described
and illustrated in Figure 4 of the accompanying drawings.
4. The improved stove or oven hereinbefore described and illustrated in Figures 5.
and 6 of the accompanying drawings.
Dated the 11th day of Aust 1906
G. F. REDFERN & Co.,
4, South Street, Finsbury, London, Agents for the Applicant.