Improvements in Oil Cooking Stoves and Lamps Employed therein.
Year: 1889

page_text: Date of Application, 9th Aug., 1889-Accepted, 28th Sept., 1889
COMPLETE SPECIFICATION.
Improvements in Oil Cooking Stoves and Lamps Employed therein.
We, GEORGE ROBERTS, of 109 Shuter Street, in the City and District of Montreal,
and Province of Quebec, Canada, and JOHN HALLY, of 45 Young Street, in the
County of York, Province of Ontario, Merchant, 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 :-
Our invention relates to improvements in cooking stoves and oil lamps employed
therein, such that the lamp can burn even an inferior grade of oil without the products
of combustion being impregnated with vapour or unconsumed gas or odour, thus
enabling an improved construction of the oil stove to be made, in which the products
of combustion from the lamp or lamps are passed directly into the oven of the stove
An oil stove
without imparting to the food &c. being cooked, any flavour or smell.
consists of two principal parts which are absolutely necessary, the one to the other,
viz. the lamp or heat generator, and the stove proper in which the heat is
utilized.
In the accompanying drawings similar letters of reference and numerals indicate
like parts.
Fig. 1 is a front elevation of an oil stove embodying our invention. Fig. 2 is a
side elevation. Fig. 3 is a plan with the top platen removed. Fig. 4 is a vertical
section at line x, Fig. 1. Fig. 5 is a plan of the oil reservoir. Fig. 6 is a part front
elevation and part section. Fig. 7 is a plan of a portion of the perforated plate 30
and opening 31 with wick tube 25. Fig. 8 is a plan of one of the burner caps m and
wick tube 25. Fig. 9 is a section of the cap m, wick tube 25, perforated plate 30,
and covers 27 and 35 at line 2, Fig. 8. Fig. 9 is a vertical section shewing a modi-
fication of the configuration of the parts in Fig. 9 on line, Fig. 9b, which is a
section on line. Fig. 9. Fig. 10 is a plan of the wick tube 25 shewing the relative
position of the plates 33 therewith as shewn in Fig. 9.
Fig. 11 is a plan of a portion of the bottom of the oven, and section of a portion of
oven door 6 and diaphragm f shewn in relation therewith. Fig. 12 is a front
elevation of the top part of the diaphragm e, shewing openings a¹, and damper a'.
The casing a of the stove and oven door b are made of metallic plates or sheets c
coated with heat non-conducting material d (see Figs. 4 and 11) or may be formed
in any other desired manner. Within the casing a are situated three diaphragms e, f
and g extending from side to side of the casing and united therewith thus forming as
shewn in Fig. 4 a flue to the chimney i an oven space k, a space g' and an uptake
from the lamps.
The diaphragm e extends from the top of the stove n to near the bottom leaving an
opening at 1 the whole width of the stove.
"
:
At the top of this diaphragm openings a¹ are formed with a perforated sliding
plate a forming a gridiron damper" operated by the handle a³ (see Fig. 12). The
diaphragms and g extend from the bottom of the oven space to near the top of the
stove leaving a space at 2 the whole width of the stove the tops of these are connected
together by a plate 3 provided with perforations 4; this plate inay, if desired, be made
integral with one or both of the diaphragins. In the diaphragm g, an opening 7 is
formed for a current of air to pass into the space g¹ and escape through the perfora-
tions 4; this is for the purpose, first, of preventing too much heat being imparted to
the oil in the reservoir 9, and second, the currents of air passing through the perfora-
tions 4, which are highly heated at the time of their escape cause the products of
combustion from the uptake 1 to form more intimate contact with part of the top of
the stove n situated above the perforations, so that boiling or heating on that part
of the top n is much more quickly accomplished.

page_text: On the diaphragms e and f projections 5 are formed at various heights to enable
the bottom of the oven 6 (which is made with a bright reflecting upper surface)
provided with perforations 8 to be set at different heights, as desired. The upper
front part of the stove is formed in part by the casing a and by doors 10 hinged at 11
to the sides of the stove casing; these doors are provided with mica lights 12 through
which the flames of the lamps may be seen and by opening the doors 10, free access
is given to the lights.
13 are diaphragms dividing the uptake into equal parts and providing one part to
each of the lamps. 14 is a damper which when placed in a vertical position by the
handle causes the heat of the two lamps in front of it, to pass as indicated by the
arrows 15 in Fig. 3, and so unite with the heat of the other two lamps; this will be
found particularly convenient when it is desired to heat anything very rapidly on the
top n of the stove, as it concentrates the heat.
16 is a moveable plate resting and capable of sliding upon guides 17 attached to the
sides of the stove, as shewn in Figs. 3 and 4; in its forward position with its front
edge close up to the top of the diaphragm f, so that the heat from the lamps will bo
obliged to pass over this plate through the oven at the back and pass through the
perforations 8, in the bottom 6 and by the space 1 and flue h to the chimney i. By
placing the plate 10 in a more backward position or close against the diaphragm e the
heat may be regulated as required to descend more or less at the front or back of the
oven, and thus correspondingly act on the food &c. being cooked in it. 18 is an
ordinary open work or grating shelf placed on the projections 5 above those on which
the bottom 6 rests for supporting the vessel containing the food, the bottom 6 serving
as a reflector to reflect the heat to the under surface of the vessel.
When the oven is not in use and the top n is only required to be heated, the
damper a³ is set to uncover the openings a and allow the products of combustion to
pass directly into the top of the flue and to the chimney i.
The oil reservoir 9 is attached at the bottom of the stove in front; it consists of a
rectangular enclosed casing having an ordinary filling hole 19 and openings 20, one
for each lamp wick 21, to pass down through into the oil; each of these openings is
surrounded by a flange 22 to guide and hold tightly a sleeve 23 inserted therein;
these sleeves extend to or nearly to the bottom of the reservoir, except on one side
where an oponing 24 is formed for the wicks 21 to pass out and extend along upon
the bottom.
The object of the sleeves is, to prevent the larger part of any vapour or gas formed
in the reservoir from passing up the wick tubes 25 and acting on the flame of the
lamps; should any vapour or gas be formed it will be able to escape by the filling
hole 19 which is provided with a loose cover only sufficient to prevent dust entering
but not air tight; thus the said hole becomes a vent also. 26 is a flange formed on
the reservoir, to this is fitted a cover 27, see Figs. 1, 4 and 9, in this cover see Fig. 9
the wick tubes 25 are inserted and soldered so that they are practically in one piece
therewith.
28 is a flanged diaphragm having openings through which the wick tubes pass and
are soldered; to this is attached deflectors 29, preferably one on each side, and between
the inner flanges of the deflector is held a perforated plate 30 having openings 31 for
the wick tubes to pass freely through.
The deflectors cause the air going to the flames of the lamps or lights, to pass as
shewn by the arrows in Fig. 4, thus preventing the flames from being acted directly
upon and caused to smoke &c. by currents of air in the place in which the stove is
situated.
On the upper side of the deflectors are placed the burner caps m, in these are
situated plates 33 inclined and bent at their upper edges also provided with perfora-
tions 34 (as shewn in Figs. 9 and 10) so that the air coming to the flame of each lamp
will be divided into three parts on each side of each flame, as shewn by the arrows,
one of which passes over the plate 33, one under it, and the third through the per-
forations 34; this last is highly heated owing to its close proximity to the plates 33.
This construction of the burners of the lamps of an oil stove, and other oil lamps

page_text: enables them to be adjusted to various volumes of flame (high or low) without vapour
gas or odour being emitted.
In some cases the caps m may be required to have their walls 41 much more
upright, as shown in Fig. 9, than as shown in Fig. 9, in which case the plates 33
cannot be inclined on account of there not being room; in this case we place the
plates 33 upright and provide a greater number of perforations 31.
In Figs. 9 and 9b, the edges of the platos 33 are soldered &c. at 40 to the edges of
the wick tube 25 but they may be held in place in a variety of ways either by
attaching directly or indirectly to the tube or cap m.
We have illustrated our invention by a stove having four lights. but a greater or
less number may be used, and at times it may be desired to only use a portion of
them, therefore we furnish covers 35, shewn only in section in Fig. 9; by these the
currents of cold air that would otherwise pass in through the lamps not in use and
thus cool the stove, is prevented, and by the plates 36, in each, the vapour gas or
odour from them is prevented from ascending.
Having now particularly described and ascertained the nature of this in-
vention and in what manner the same is to be performed we declare that
what we claim is :-
1. The combination in an oil stove of the lamps with a stove proper consisting of
casing a having diaphragms ef and forming flue h, oven space k, space g', and
uptake, moveable plate 16, forming a means of regulating the position of the entry
of heat into the oven and perforated bottom 6, the whole substantially as described.
2. The use in an oil stove arranged for the products of combustion to pass directly
through the oven thereof on its way to the chimney, as described, of a lamp consisting
of the combination of a reservoir having sleeves 23 and a vent and filling hole 19,
wick tubes 25, deflectors 28, and 29, perforated plate 30, burner cap m having per-
forated plate 33, the whole substantially as described.
3. The use in an oil stove, of a lamp or lamps having caps m, inclined plates 33
provided with perforations 34, the whole substantially as described."
4. The use in an oil stove, of a lamp or lamps, having caps m, perforated plates 33,
deflectors 28, and 29 and perforated plate 30, the whole substantially as described.
5. The combination of the wick tube 25, cap m and plates 33, substantially as
described.
6. The combination of the wick tube 25 cap m, plates 33, deflectors 28 and 29 and
perforated plate 30, substantially as described.
7. The combination with the wick tube 25 of the sleeves 23, substantially as
described.
Dated this 9th day of August 1889.
ABEL & IMRAY,
Agents for the Applicants.