Improvements in or appertaining to Lamps or Stoves Applicable for Burning Methylated Spirit or the like.
Year: 1889

page_text: Date of Application, 27th May, 1889
Complete Specification Left, 27th Feb., 1890-Accepted, 29th Mar., 1890.
PROVISIONAL SPECIFICATION.
Improvements in or appertaining to Lamps or Stoves Applicable for
Burning Methylated Spirit or the like.
.
A communication from abroad by TH. KAPFF NACHFOLGER, of Ludwigsburg, in
Germany.
I, WILLIAM PHILLIPS THOMPSON F.C.S. M.I.M.E. of the Agency for Foreign
Patent Solicitors 6 Lord Street Liverpool, and 6 Bank Street Manchester both in the
County of Lancaster, and 323 High Holborn in the County of Middlesex Civil
Engineer do hereby declare the nature of this invention to be as follows:-
This invention has for its object an improved spirit stove by means of which the
flame can be regulated in a novel manner. The apparatus also comprises an arrange-
ment by means of which after the flame has been extinguished the vessel which
contains the spirit and which is still greatly heated can be immediately cooled in order
to avoid the evaporation of the spirit.
A great saving in spirit is obtained by regulating the flame during consumption
and by cooling the remaining spirit as soon as it is extinguished.
The apparatus consists of a frame which may be made in the form of a tripod or in
any other suitable form, a spirit vessel, a smaller basin supported about the centre of
the said spirit vessel, a cover and a water vessel.
The spirit vessel is placed between the feet of the frame on projections made of
hoop iron or other suitable material.
The water vessel is also suspended in such manner from these projections by
means of wire loops that by slightly raising and twisting it horizontally by means
of a handle it can be raised so as to surround or envelope the spirit vessel.
The cover is supplied with a rather wide border slanting slightly downwards but
provided with a number of sloping incisions corresponding to the number of divisions
of the frame and exactly similar to each other so that the cover, which rests on
the projecting ends of the frame aforesaid can be raised or lowered by turning its
handle in a horizontal plane. A portion, somewhat smaller than the diameter of the
inner basin is cut out of the centre of the aforesaid cover. In its lowest position it
shuts off the basin entirely from the spirit vessel.
The basin which is not at any time closed, along with the said spirit vessel by the
cover may be used for quickly heating anything with a small quantity of spirit but
it further serves to regulate the flame like the burner plate of a petroleum lamp.
The spirit is poured into the spirit vessel and lit when the cover is raised. The
flame then burns round the edge of the basin and passes out through the hole in
the centre of the cover.
The cover is thus heated and leads an excellent current of air to the flame. This
current of air is further augmented by means of incisions in the rim of the cover.
The flame may now be regulated by turning the cover horizontally round its centre
point the flame being constantly reduced as the cover descends and finally being
extinguished. as the latter comes in contact with the edge of the basin.
The water vessel also presents a practical preventative against fire since any boiling
spirit which overflows must fall in the water vessel and no damage would arise.
Dated this 27th day of May 1889.

page_text: COMPLETE SPECIFICATION.
Improvements in or Appertaining to Lamps or Stoves Applicable for
Burning Methylated Spirit or the like.
'A communication from abroad by TH. KAPFF NACHFOLGER, of Ludwigsburg, in the
Empire of Germany.
I, WILLIAM PHILLIPS THOMPSON, F.C.S., M.I.M.E., of the Agency for Foreign
Patent Solicitors, 6. Lord Street, Liverpool, and 6, Bank Street, Manchester, both
in the County of Lancaster, and 323, High Holborn, in the County of Middlesex,
Civil Engineer, do hereby déclare 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 has for its object an improved spirit stove by means of which the
flame can be regulated in a novel manner. The apparatus also comprises an.
arrangement by means of which, after the flame has been extinguished, the vessel,
which contains the spirit and which is still greatly lieated, can be immediately
cooled in order to avoid the evaporation of the spirit.
A great saving in spirit is obtained by regulating the flame during. consumption
and by cooling the remaining spirit as soon as it is extinguished.
1
The apparatus represented in the annexed drawings consists of a frame a which
may be made in the form of a tripod, as shown, or in any other suitable form, a
spirit vessel b, a smaller basin c supported about the centre of the said spirit vessel,
a cover d and a water vessel e.
The spirit vessel b is placed between the feet of the frame on projections r made
of hoop iron or other suitable material..
The water vessel e is also suspended in such manner from these projections by
means of wire loops s that, by slightly raising and twisting it horizontally by means
of a handle z, it can be raised from the position shown in Figure 2 to that shown
in Figure 1 so as to surround or envelop the spirit vessel.
The cover d is supplied with a rather wide border slanting slightly downwards
but provided with a number of sloping incisions corresponding to the number of
divisions of the frame a, three in the example shown, and exactly similar to each
other, so that the cover, which rests on the projecting ends of the frame a aforesaid,
can be raised or lowered by turning its handle to in a horizontal plane, as shown
in dotted lines Figure 3. A portion, somewhat smaller than the diameter of the
inner basin c, is cut out of the centre of the aforesaid cover. In its lowest position,
see Figure 1, it shuts off the basin c entirely from the spirit vessel b.
The basin c, which is not at any time closed along, with the said spirit vessel by
the cover, may be used for quickly heating anything, with a small quantity of
spirit, but it further serves to regulate the flame like the burner plate of a petroleum
lamp. The spirit is poured into the spirit vessel b and lit when the cover is raised.
The flame then burns round the edge of the basin and passes out through the hole
in the centre of the cover d.
The cover d is thus heated and leads an excellent current of air to the flame.
This current of air is further augmented by means of incisions n in the rim of
the cover d.
The flame may now be regulated by turning the cover d horizontally round its
centre point, the flame being constantly reduced as the cover descends, and finally
being extinguished as the latter comes in contact with the edge of the basins band c.
The water vessel; also presents a practical preventative against fire, since any
boiling spirit which overflows whilst it is burning must fall into the water vessel
and thus no damage would arise.

page_text: Having now particularly described and ascertained the nature of the said
invention, and in what manner the same is to be performed, as communicated to
me by my foreign correspondent, I declare that what I claim is :-
In a spirit cooking stove or lamp
:-
1. The arrangement of a small central shell or basin c, which can, if desired, be
used for holding spirit, in a larger spirit receptacle. 6 in such a manner that the
edges of the receptacles b and c can be simultaneously covered by a lid d provided
with a hole in the centre for the purpose of regulating the current of air and the
flame, substantially as described and shown.
2. The cover d with perforations n and a broad depending border, provided with
a number of sloping incisions or recesses on which the cover rests, in such manner
that it can be raised or lowered by means of a horizontal movement around its
centre for the purpose of adjusting or extinguishing the flame, substantially as
described.
3. The arrangement of a water vessel e for cooling and safety purposes, which has
a form analogous to that of the spirit receptacle 6 and is suspended concentrically
under the same by means of loops or eyes s; the shape of which loops allows the
water vessel to be lifted and maintained in a raised position (Figure 1) substantially
as and for the purposes set forth.
Dated this 26th day of February 1890.
WM. P. THOMPSON & Co.,
Agents for the Applicant.