Apparatus.
Year: 1897

page_text: Apparatus.
We, VALENTIN HESS, Contractor, and JOHANN MATHEI, Foreman, both of VI,
Boz Dorsewffy Gasse, Buda Pest, in the Kingdom of Hungary, do hereby declare
the nature of this invention to be as follows:-
The application relates to an improved safety universal spirit burner and cooking
apparatus.
In the spirit burners hitherto in use especially the so called boilers or cookers the
spirit can only be used in the fluid condition for the purpose of the flame or heat
production. This fluid spirit whether ignited by means of a wick or a suction tube
or simply in the open vessel is very difficult to extinguish if an explosion or an
upsetting of the apparatus occurs, on account of its great inflammability and because
through its high percentage of alcohol contents the whole quantity must be burned.
In such cases escape of the spirit from the container becomes inevitable and it is the
more dangerous because the fluid spreads itself out, then rapidly catches fire over
its whole broad surface, whereby accidents and fire danger cannot possibly be
prevented quickly enough.
Our invention of the safety universal spirit cooker and burner obviates not only
all the above mentioned drawbacks, but distinguishes itself in consequence of its
complete safety as well as through its extremely cheap cost of construction and its
economy of combustible material from all other spirit burners or cookers.
The important point that the apparatus of our invention contains no free liquid
spirit and can consequently under no circumstances cause liquid to flow out and catch
fire in case of upsetting or shaking, provides the more security against accidents
from fire in that the flame although exceeding in intensity and heating power all
other constructions can yet be blown out with great ease even by a child, or may
even be extinguished automatically by the removal of the cooking vessel.
The feet at the base of the apparatus remain during the whole period of
combustion almost cold, and can be laid hold of without danger by the hand or be
lifted up and the surface of the table or the like upon which the apparatus is
placed will not suffer the least injury from the heat of the apparatus.
Our improved apparatus may be constructed of any kind of cast, hammered,
presse, or stamped material or metal suitable for such an apparatus and its
construction is illustrated in the accompanying drawing in which :-
Figure 1 shews the apparatus in section.
Figure 2 in plan view.
Figure 3 in perspective view.
The apparatus consists essentially of a closed vessel or container B supported upon
three feet A and closed below by the bottom plate a. Through the middle of the
container B and the bottom plate thereof a there passes a conical tube C for the
purpose of supplying air. The whole internal space of the vessel B is then filled
from the plate a almost to the top plate with slightly compressed cotton wool D
which serves for the absorption or reception of the liquid spirit. Upon this
slightly compressed cotton wool D there is placed a thin layer of asbestos wool or

page_text: a thin fabric of asbestos E and upou this is placed a wire gauze cover l'or a
cover of similar nature which is formed concave when viewed from above. This
cover may be secured by bending over the upper edges of the vessel B. The feet
A supporting the receptacle B are prolonged in such a manner that they project
above the said receptacle in the form of a tripod G and are then bent so that they
will serve for the support of a cooking vessel. To one of the said feet A is attached
a revoluble cover and there is also placed at the side of the receptacle Ba
handle J so arranged as to serve for a support for two wire holders K which are
capable of being folded down and also adjusted along the handle. These wires K
are destined for the support for heating of a tool or heating iron whilst the wholo
serves the purpose of a handle.
In order to make use of the apparatus spirit is poured upon the compressed
cotton wool D in the receptacle B through the perforated cover F and the asbestos
cover E until the same is saturated. The cotton wool being soaked in this manner
evolves vapours of alcohol which pass through the asbestos and the perforated
cover, and may here be ignited and serve for cooking or heating.
The flame thus obtained is easily and safely extinguished by even a slight
blowing or by the lowering upon it of the hinged lid H over the concave shaped
perforated cover F. There is no danger in case of the vessel falling down or
upsetting whilst the flame is burning because there is no free liquid in the
container B, consequently there can be no flowing ont or ignition of the same.
Moreover a slight breath of air suffices to extinguish the flame immediately. An
explosion in the use of a spirit cooker of this construction is also quite impossible
because in the case of an upset the flame which always strives upwards is prevented
by the asbestos wool or fabric E from communicating itself to the cotton wool D
and cannot therefore ignite the same. For the same reason it prevents any
carbonizing of the cotton wool D.
Our new cooking apparatus effects a considerable saving in fuel and time. In
consequence of the action of the air tube C the flame is impelled upwards and
obliged to become in the middle a so-called "Bunsen" flame. This Bunsen flame
being somewhat depressed through the cooking vessel supported by the tripod G
spreads itself out over the whole heating surface and is distributed uniformly
thereon. This causes an intense heating power so that in the case for instance of
a heating surface of 65 mm. diameter, a litre of ice cold water in an enamelled
vessel covered with an ordinary lid can be brought to boil within 12 minutes,
whereas in other cooking apparatuses the same can be brought to Loil culy in 17
Juinutes. A decilitre of spirit burns in our improved apparatus with inteuse
heating power for the period of 58 minutes whereas in other apparatuses the same
will burn for only 32 minutes.
We, VALENTIN HESS, Contractor, and JOHANN MATHEI, Foreman, both of VI, Buz
Dorsewffy Gasse, Buda l'est, in the Kingdom of Hungary, do hereby declare the
nature of this invention and in what inanuer the same is to be performed to be
particularly described and ascertained in and by the following statement :-
This application relates to an improved safety universal spirit burner and cooking
apparatus.

page_text: In the spirit burners hitherto in use especially the socalled boilers or cookers
the spirit can only be used in the fluid condition for the purpose of the flame or
heat production. This fluid spirit whether ignited by means of a wick or a snction
tube or simply in the open vessel is very difficult to extinguish if an explosion or
an upsetting of the apparatus occurs on account of its great imflammability and
because through its high percentage of alcohol contents the whole quantity must
be burned. In such cases escape of the spirit from the container becomes
inevitable and it is the more dangerous because the fluid spreads itself out, then
rapidly catches fire over its whole broad surface, whereby accident and fire danger
cannot possibly be provented quickly enough.
Our invention of the safety universal spirit cooker and burner obviates not only
all the above mentioned drawbacks, but distinguishes itself in consequence of its
complete safety as well as through its extremely cheap cost of construction and its
economy of combustible material from all other spirit burners or cookers.
The important point that the apparatus of our invention contains no free liquid
spirit and can consequently under no circumstances cause liquid to flow out and
catch fire in case of upsetting or shaking, provides the more security against
accidents from fire in that the flame although exceeding in intensity and heating
power all other constructions can yet be blown out with great ease even by a child,
or may be extinguished automatically by the removal of the cooking vessel.
The feet at the base of the apparatus remain during the whole period of
combustion almost cold and can be laid hold of without danger by the hand or be
lifted up and the surface of the table or the like upon which the apparatus is placed
will not suffer the least injury from the heat of the apparatus.
Our improved apparatus may be constructed of any kind of cast, hammered,
pressed, or stamped material or metal suitable for such an apparatus and its
construction is illustrated in the drawing accompanying the provisional specification
in which :-
Figure 1 sbewa the apparatus in section.
Figure 2 in plan view.
Figure 3 in perspective view.
The apparatus consists essentially of a closed vessel or container B supported
upon three feet A and closed below by the bottom plate a. Through the middle
of the container B and the bottom plate thereof a there passes a conical tube C for
the purpose of supplying air. The whole internal space of the vessel B is the.
filled from the plate a almost to the top plate with slightly compressed cotton wool D
which serves for the absorption or reception of the liquid spirit. Upon this slightly
compressed cotton wool D there is placed a thin layer of asbestos wool or a thin
fabric of asbestos E and upon this is placed a wire gauzo cover For a cover of
similar nature which is formed concave when viewed from above. This cover may
be secured by bending over the upper edges of the vessel B. The feet A supporting
the receptacle B are prolonged in such a manner that they project above the said
receptacle in the form of a tripod G and are then bent so that they will serve for
tho support of a cooking vessel. To one of the said feet A is attached a revoluble
cover H and there is also placed at the side of the receptacle B a handle J so
arranged as to serve for a support for two wire holders K which are capable of
being folded down and also adjusted along the handle. These wires K are destined
for the support for heating of a tool or heating iron whilst the whole serves the
purpose of a handle.
In order to make use of the apparatus spirit is poured upon the compressed
cotton wool D in the receptacle B through the perforated cover F and the asbestos
corer until the samo is saturated. The cotton wool being soaked in this manner
evolves vapours of alcohol which pass through the asbestos and the perforated cover,
and may here be ignited and serve for cooking or heating.
The Hane thus obtained is oasily and safely extinguished by even a slight
lowing or by the lowering upon it of the hinged lid II over the concave shaped
perforated cover F. There is no danger in caso of the vessel falling down or
.

page_text: upsetting whilst the flame is burning because there is no free liquid in the
container B, consequently there can be no flowing out or ignition of the same.
Moreover a slight breath of air suffices to extinguish the flame immediately. An
explosion in the use of a spirit cooker of this construction is also quite impossible
because in the case of an upset the flame which always strives upwards is prevented
by the asbestos wool or fabric E from communicating itself to the cotton wool D
and cannot therefore ignite the same. For the same reason it prevents any
carbonizing of the cotton wool D.
Our new cooking apparatus effects a considerable saving in fuel and time. In
consequence of the action of the air tube C the flame is impelled upwards and
obliged to become in the middle a so-called "Bunsen" flame. This Bunsen flame
being somewhat depressed through the cooking vessel supported by the tripod G
spreads itself out over the whole heating surface and is distributed uniformly
thereon. This causes an intense heating power so that in the case for instance
of a heating surface of 65 mm. diameter, a litre of ice cold water in an enamelled
vessel covered with an ordinary lid can be brought to boil within twelve minutes,
whereas in other cooking apparatuses the same can be brought to boil only in
17 minutes. A decilitre of spirit burns in our improved apparatus with intense
heating power for the period of 58 minutes whereas in other apparatuses the same
will burn for only 32 minutes.
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 :---
1. The improved universal and economical spirit cooking and heating apparatus
characterized essentially by the safety filling consisting of a quantity of compressed
cotton wool D placed in the vessel B with conical tube C and acting as an
absorbent of the liquid fuel, and from which the alcohol or the like vapour rises
through a thin layer of asbestos wool or of asbestos fabric E placed upon the said
cotton wool D and having over the said asbestos wool E a further covering of wire
gauze Fabore which the vapour is ignited, substantially as described.
2. The improved safety spirit burner and cooking apparatus, substantially as
described and illustrated in the drawings accompanying the Provisional
Specification.
30 1 1
1000
W. P. THOMPSON & Co.,
322, High Holborn, London, W.C., Patent Agents for the Applicants.