Improvements in and in connection with Oil Cooking-stoves, and Lamps therefor.
Year: 1896

page_text: Date of Application, 25th Apr., 1896-Accepted, 30th May, 1896
COMPLETE SPECIFICATION.
Improvements in and in connection with Oil Cooking-stoves, and
Lamps therefor.
We, FREDERICK JONES DUGGAN and CHARLES ISAAC, trading together as
Duggan and Isaac, Lamp and Stove Manufacturers, at Columbia Works,
Elbrond Street, in the City and County of Bristol 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 oil stoves and lamps therefor, and
applies more particularly to such as are constructed to burn petroleum or paraffin,
and consists-Firstly-of improvements in the construction of such lamps by
means of which we are enabled to dispense with the usual plates upon the under
surface of the body of such stoves, hitherto provided as runners for the lamps, and
to protect them from side or down draught. Secondly of a device or apparatus
capable of easy attachment to our said improved portion of such lamps, and of a
similar device or apparatus capable of easy attachment to the cone-plate of such
lamps ne at present made and used, by means of which either of the said
lamps may be used for cooking purposes when removed or detached from the
stove.
Our invention has for its objects to effect a certain saving in the cost of manu
facture of such stoves by forming upon the lamp an equivalent for what has
bitherto been formed upon the stove, and by such improvements in the lamp, in
combination with the device or apparatus to be attached thereto when detached
from the stove, to effect a saving of oil to the user of such as would be required to
heat the stove generally before this could be used for such simple purposes as that
of boiling a kettle or saucepan, heating a frying pan or the like.
In order that our invention and the manner of the application and use of same,
may be fully and clearly understood, we have hereunto appended a sheet of
drawings, of which,
Fig. 1 is an end elevation of a lamp and portion of a stove as at present made
and used.
Fig. 2 is a like view with a lamp constructed according to our invention.
Fig. 3 is a perspective view of the device or apparatus according to our invention,
to be attached to the lamp in Fig. 1 when this is removed from the stove, Fig. 4
illustrating such attachment.
Fig. 5 is a like view of the said device or apparatus arranged for attachment
to our improved lamp in Fig. 2, when this is removed from the stove, Fig. 6
illustrating such attachment.
.
Fig. 7 is a perspective view of one of the said attachments, illustrating the
application thereto of a stationary trivet or grid forming a stand for the reception
of a kettle or the like, as illustrated by Fig. 8.
Fig. 9 is a diagram illustrating a means for the attachment of the device Figs. 3
and 5, to the under surface of tho oven or stove body when such device or apparatus
is not in use upon the detached lamp.
In oil stoves or ovens of this type as hitherto made and used, as illustrated by
Fig. 1, the lamp consists of a reservoir A, provided with a wick passage B, aud
wire or other staging C, holding, above B, a plato E carrying a burner D, the two
latter being technically known, and hereinafter referred to as, the cone and cone-
plate. Upon the lower part of the oven or body F of the stove are plates or

page_text: runners a a¹ which form guides for, and upon which is slid the cone plate E, so that
when the lamp is in position the said plates serve to exclude the admission of air
above the plate E; the necessary air feed passing upwardly around the wick
passage B, through the flame passage in D, and a passage G in the stove, the latter
serving as a chimney, guiding the heat from the lamp over and around the
oven F.
For the purposes of the first of our said improvements we dispense with the
Baid plates a a', and cast, press, swage or otherwise construct the said cone plate
of any suitable metal, or rivet, solder or otherwise attach a metallic portion or
portions thereto, so as to make this of dish-like formation as at E' Fig. 2, (wherein
a portion of E is broken away to show the cone D) the sides and ends of which
may be at any angle other than a right angle with the plate or seating of the
cove D, with their upper edges b turned outwardly to form a flange as shewn in
Figs. 2 and 6, for purposes hereinafter explained. The height of the sides of E¹
would be auch as to clear the top of the cone D, and engage in frictional contact
with the under surface of the oven or body of the stove, when the lamp was
placed in position with the cone D immediately beneath the chimney G, the sides
and ends of E thus providing for the exclusion of air above the cone D, more
effectually than that of the before mentioned plates a and a', inasmuch as the
dish E entirely surrounds the cone D, which the plates a a' did not. We may
arrange that the rim or dish E', and its cone D, may be either hinged at one end
to the frame C in the usual way as at c Fig. 8, so as to be capable of being raised
at the opposite end, or be arranged to fit into, and be seated upon a rim or its
equivalent upon or forming part of the frame C, so as to be entirely detachable
therefrom, as may be found most convenient.
The second portion of our invention consists in providing means for utilizing the
lamp for cooking purposes apart from the stove. For the purposes of this part of
our invention, and for use in connection with our improved lamp (Fig. 2) wo cast,
press, swage or otherwise produce of any metal or alloy of metals, the device or
apparatus shewn by Fig. 5, which consists of a plate H of the same dimensions as
that of the upper surface of the rim or dish E, the edges of the sidos of H being
turned under at d d' so that these may slide upon the flanges b at the sides of E.
The plate is provided with a preferably elliptical opening, corresponding in
dimensions to that of the cone D or thereabouts, and surrounding this opening is
a tapered chimuey J, having in either of its sides an opening enclosed by a glass,
talc mica or other transparent plate K, through which the flame of the lamp may
be seen for adjustment.
The chimney J is constructed to receive within its upper end, the elliptical rime
of a cast iron stand or stationary trivet L, as at Fig. 7, upon which may be stood
a kettle, saucepan, frying-pan or the like, as illustrated by Fig. 8. Ir. Fig. 6 wo
illustrate the manner in which the device Fig. 5 engages with the flanges 6 of the
rim E, a fixed metallic hook or clip being provided upon one end of H which
engages with one end of the frame C, when the opposite end of H is hinged to C
as at Fig. 8, or such a hook or clip may be provided upon each end of H when this
is detachable from C, one of which may be fixed and the other hinged so as to
engage with both ends of C.
lu adapting this portion of our invention to stove lamps as at present made and
used, that is to say, having a cone E as at Fig. 1, that these may in like manner be
used for cooking purposes when detached from the cooking stove, we either solder,
rivet or otherwise connect the chimney J to, or cast or otherwise produce this
integral with, a preferably rectangular bottomless chamber M, (Fig. 3) the length
and breadth of which coincides with that of the cone plate E, the lower edges of
the sides of M being bent outwardly and under at that the grooves formed
thereby may engage with the edges of, aud permit M to be elid. upon the cone
plate E, a portion of one end of M being cut away at m to clear the cone D, as
illustrated by Fig. 4, and when M J is thus placed in connection with the cone

page_text: plate E, this type of lamp may be used in the same manner as described with regard
to Figs. 5 and 6 and as illustrated by Figs. 7 and 8.
We may as an alternative arrangement mount the chimney J upon a chamber M.
without the accessories m, and h¹, and fix within the bottom of M a cone and cone
plate such as D E, so that, with such lamps as have a cone and cone plate-
detachable from the frame C, these may be removed, and the chamber M with.
chimney J, and cone and cone plate D E be placed directly upon the frame C, and
usod as described upon the detached lamp.
In Fig. 9 we illustrate a moans whereby the device or apparatus Figs. 4 or 5-
may, when not in use for the purposes stated, be suspended beneath the bottom of
the oven or stove body F. For this purpose we rivet, solder or otherwise connect
to the under surface of F a metal plate N, the edges of the sides of which are turned
under to form grooves n n' for the reception of the edges of the plate or trivet L.
of the device or apparatus Fig. 3, or that of the device or apparatus Fig. 5, 80
that either of these may be slid into and suspended by N as shewn, and when
partially withdrawn therefrom may be used as a stand or trivet for a plate or
other article. The plate N may extend under and beyond the back of the stove.
and serve as the bottom of a rack for carrying plates or dishes to be warmed
before use.
Having now particularly described and ascertained the nature of our said inven-
tion and in what manner the same is to be performed, we declare that what we.
claim is,
1st. In the manufacture of oil cooking-stoves and lamps therefor, the application
to the cone plate of such a lamp of a splayed or dishlike rim such as E', or a cone
plate cast, stamped or otherwise formed to provide such a rim, and arranged to.
entirely surround the cone D and form a side or down draught excluder therefrom,
by engaging with, and impinging upon the under surface of the oven F, when the
lainp is placed in position within the stove, substantially as and for the purposes
herein described and shewn by Fig. 2 of the accompanying drawings.
2nd. In an improved means for utilizing the lamps of oil stoves for cooking
purposes other than in connection with such stoves, the application to such a lamp
having a dishlike rim such as E' as set forth in the preceding claim, of a plate such
as H, having turned under edges such as d d', for engaging with the flange b of E',
and provided with one or more hooks or clips such as f, for engaging with the
rim C of the lamp, the said plate H having connected thereto or formed integrally
therewith, a chimney such a J, having a transparent plate such as K, and
constructed to receive and hold the rim e of a trivet or stand such as L, the whole-
connected, combined and operating substantially as and for the purposes herein
described and shewn by Figs. 5, 6, 7 and 8 of the accompanying drawings.
3rd. In an improved means for utilizing the ordinary lamps of oil stoves for
cooking purposes other than in connection with such stoves, the application to such
a lamp of a device or apparatus such as Fig. 3, consisting of a bottomless chamber
such as M, having turned under edges such as h¹ for engaging with the cono
plate E of the lamp, and recessed at m for clearing the cone D of same, the said
chamber M having connected thereto, or formed integrally therewith a chimney J,
having a transparent plate K, and constructed to receive and hold the rim e of a
trivet or stand such as L, the whole connected, combined and operating sub-
stantially as and for the purposes herein described and shewn by Figa. 3, 4, 7 and 8.
of the accompanying drawings.
4th. The combination with an oil cooking-stove lamp, of a portable device such
as Fig. 3 or Fig. 5, consisting of a plate H or chamber M, having a chimney J
arranged to receive and hold the rim of a portable stand such as L, substantially
as herein described and shewn.
5th. In combination, the improved cooking stove and portable lamp attachment
such as Fig. 3 or Fig. 5, with means such as that of a plate N, having curved

page_text: edges such as n n', and connected to the under surface of the oven or body. F, for
receiving and holding the said lamp attachment, substantially as described and
shewn by Fig. 9.
Dated this 25th day of April 1896
GEO. THOS. HYDE,
1 Broad Street Buildings, London, E.C., Agent for Applicants.