Improvements in Portable Spirit Stoves or Lamps for Cooking or Boiling Purposes.
Year: 1894

page_text: Date of Application, 15th Feb., 1894
Complete Specification Left, 30th Oct., 1894-Accepted, 22nd Dec., 1894
PROVISIONAL SPECIFICATION.
Improvements in Portable Spirit Stoves or Lamps for Cooking or
Boiling Purposes.
J, FREDERICK THOMAS BROOKES, of 197 Lozells Road, Handsworth, near
Birmingham in the County of Stafford, Diesinker and Manufacturer, do hereby
declare the nature of this invention to be as follows :—
My invention has for its object the production of a portable spirit stove or lamp
for cooking or boiling purposes, consisting of an open spirit receptacle or retort,
instead of the usual wool-stuffed-gauze covered base, which receptacle or retort has
an orifice in centre as air-draught, & legs forming a stand; which legs are
continued upwards above retort to form rests for kettle, pot or pan, & also to act
as guides, stays or stops, in combination with an adjustable revolving double lid,
each lid, underlid & top lid, having apertures round circumference, which
apertures close or open (for diminishing or extinguishing flame) as the top lid,
by means of a folding handle, is revolved over the underlid; the underlid being
fixed by reason of the kettle, pot, or pan-rests, acting as stays, or stops for saine,
by fitting into flange of underlid, the underlid being rather larger than top lid.
In carrying out my invention I make a cast-iron open retort or receptacle of
any convenient shape, circular being most suitable, with an orifice in centre as
air-draught, & raised from the ground by means of legs, which legs are continued
upwards above retort for the purpose of providing rests or stands for kettle,
pot, or pan.
In combination with this cast-iron retort or receptacle, I make first a single
cover or lid, which I call the underlid, with a flange fitting over the edge of
retort; on the outer edge or flange of this first cover or lid, make insertions,
or cut recesses, running inwards for about one quarter of an inch, corresponding
in number to the rests projecting above retort; these insertions or recesses fall
into or slide over the rests or stands for kettle, pot, or pan, thus preventing
this underlid turning round; in the centre I put an orifice corresponding to
orifice in retort; & outside centre, towards circumference of this underlid, I pierce
apertures, equidistant apart; I then take another lid, called the top lid & pierce
apertures similar to underlid, & also make this top lid just sufficiently less in
diameter to underlid so as to revolve thereon (when united loosely with it), without
coming in contact with the rests projecting on retort, which rests whilst serving as
stops or stays in the case of the underlid do not interfere with the free action of
op lid over underlid. Upon this top lid, I place a handle hinged for folding out
when in use & inwards for portability; when in use it serves to revolve the top
cover or lid over the underlid to open or close apertures for the purpose of
diminishing or extinguishing flame.
Dated this 14th day of February 1894.

page_text: Improvements in Portable Spirit Stoves or Lamps for Cooking or
Boiling Purposes.
I, FREDERICK THOMAS BROOKES, of 197 Lozells Road, Handsworth, near
Birmingham in the County of Stafford, Diesinker, and Manufacturer, do hereby
declare the nature of this invention and in what manner the same is to be per-
formed, to be particularly described and ascertained in and by the following
statement:-
My invention has for its object the production of a portable spirit stove or lamp
for cooking or boiling purposes, consisting of an open spirit receptacle or retort
instead of the usual wool-stuffed, gauze covered base, which receptacle or retort
has an orifice in centre as air-draught & legs forming a stand; which legs are
continued upwards above retort to form rests for kettle, pot or pan & also to act
as guides, stays, or stops in combination with an adjustable revolving double lid,
each lid, underlid & top lid, having apertures round circumference, which apertures
close or open (for diminishing or extinguishing flame) as the toplid, by means of a
folding handle, is revolved over the underlid, the underlid being fixed by reason of
the kettle, pot, or pan rests acting as stays, or stops for same, by fitting in to
flange of underlid, the underlid being rather larger than top lid. In carrying out
my invention, I make a cast-iron open retort or receptacle of any convenient
shape, circular being most suitable, with an orifice in centre as air-draught,
and raised from the ground by means of legs, which legs are continued
upwards above retort for the purpose of providing rests or stands for kettle, pot, or
pan. In combination with this cast-iron retort or receptacle I make first a single
cover or lid which I call the underlid, with a flange fitting over edge of retort;
on the outer edge or flange of this first cover or lid, I make insertions or cut
recesses, running inwards for about one quarter of an inch and corresponding in
number to the rests projecting above retort; these inscrtions or recesses fall into
or slide over the rests or stands for kettle, pot, or pan, thus preventing this
underlid turning round; in the centre I put an orifice corresponding to orifice in
retort; and outside centre towards circumference of this underlid, I pierce
apertures equidistant; I then make another lid called the toplid and pierce
apertures similar to underlid, and also make this toplid just sufficiently less in
diameter to underlid, so as to revolve thereon (when united loosely with it) without
coming in contact with the rests projecting on retort, which rests whilst serving as
stops or stays in the case of the underlid do not interfere with the free action of
toplid over underlid; upon this toplid I place a handle hinged for folding out
when in use & inwards for portability; when in use it serves to revolve the
top cover or lid over the underlid, to open or close apertures for the purpose of
diminishing or extinguishing flame.
I will now proceed to describe, with reference to the accompanying diagrams,
the manner in which my invention may be performed :-
Figure 1 represents the open retort or receptacle, as spirit container, made in
cast-iron or in brass.
A. A. A are the legs for support, and continued upwards
above the retort for the purpose of providing rests or stands for kettle, pot, or pan.
B is the air-draught.
Figure 2 is the underlid, with apertures C. C. C. The insertions or recesses
D. D. D formed on circumference of rim of this underlid only, are made so as to
drop over, or fit in, the projections on retort, serving as rests or supports for
kettle, pot, or pan.
Figure 3 is the toplid, fitted on to underlid Fig. 2, by means of the inner

page_text: rim E being turned into centre of underlid at F, in such a manner as to revolve
loosely thereon. G. G. G are apertures corresponding to apertures C. C. C in
underlid.
H is the handle made of wire or flat metal, & hinged on at I in order to fold
inwards for portability & outwards for use in revolving toplid over underlid for
extinguishing flame.
The toplid Figure 3 I make rather smaller than underlid Fig. 2, so as to lie
thereon within the recesses of Fig. 2 and to revolve without coming in contact with
the rests or supports on retort which fit in the recesses.
Figure 4 shows the 2 lids, toplid and underlid in conjunction, as in use, for the
purpose of applying to retort in order to reduce the flame; the apertures of toplid
and underlid are here shewn in apposition, and therefore open so that the flame
from the spirit comes only through those parts.
Figure 5 shows the same double lid, but with the toplid turned round on the
underlid so as to separate the duplicated apertures, thus closing them and shutting
off flame altogether, for extinguishing the stove.
Figure 6 represents this my improved stove with double lid thereon for
diminishing or extinguishing the flame.
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 I
claim is :-
1st. A double revolving lid constructed as described, and shewn in accompanying
drawings, in combination with an open retort or receptacle for spirit for cooking,
boiling or heating purposes.
Dated this 29th day of October 1894.
FREDERICK THOMAS BROOKES.