Year: 1887

page_text: Date of Application, 1st Apr., 1887
Complete Left; 30th Nov., 1887
Complete Accepted, 30th Dec., 1887
THOMAS GILL SMITH of 91 Savernake Road London N.W. Watchmaker and
ROWLAND CHARLES SMITH of 91 Savernake Road N.W. Engineer do hereby declare
the nature of this invention to be as follows
An improvement in the screen or box used in connection with lamps burning spirit.
of wine or similar fuel, for cooking purposes, more especially those suited to use
in camps or on board small yachts or boats; and in the manner of arranging the
cooking vessels and heating chamber therein.
A cabinet of sheet metal or other suitable material is arranged with a number of
holes near the bottom to admit air to the lamp which is placed within, and also holes
near the top and in the cover to allow the consumed gases to escape; or instead of
holes in the cover, the said cover may be made in one, two or more parts leaving space
between; this would probably be preferable in the larger sizes of the apparatus.
A door is placed in the side of the cabinet to allow the lamp-which may be of any
ordinary kind, or preferably of the pattern for which a patent numbered 7945 has
been recently granted to us-to be placed in position in the lower part of it. The
kettle or cooking pot is placed in the upper part over the lamp and rests on suitable pro-
jections or cross bars leaving a space between it and the sides and top of the cabinet.
The cover of the cabinet is removable or hinged on so as to admit of putting in the
cooking pot or kettle; or the opening may be arranged so as to put the cooking put
in at the side instead of the top. This arrangement conducts the gases up the side
and over the top of the cooking pot so that almost all the heat is absorbed by the
cooking pot. It also prevents the wind disturbing the flame or cooling the sides and
top of the cooking pot.
The upper portion of the cabinet may be arranged so as to be removable from the
lower portion, and to be placed within the lower portion by the door which admits
he lamp; or to slide over outside the lower portion; or to telescope into or over the
ower portion; the lamp being first removed. The lamp as well as any other small
article such as a flask for spirit may be placed within the cooking pot, so that the whole

page_text: apparatus is contained within the size occupied by the lower or upper portion of the
cabinet, according to which is arranged to go outside the other, forming a
comparatively small package for transport.
A wire bail or chain is attached to the upper portion and arranged so as to suspend
the whole apparatus whilst cooking, or to be a convenient handle for carrying by when
packed up.
The cabinet is preferably square and the cooking vessel round so as to obtain the
largest space in the cooking pot and the smallest and most convenient shape when
packed for transport; but it may be of any other shape for instance a Hexagon
cabinet and a round cooking pot.

page_text: Improvements in Portable or Field Cooking Apparatus.
We THOMAS GILL SMITH of 91 Savernake Road London N.W. Watchmaker and
ROWLAND CHARLES SMITH of 91 Savernake Road London N.W. Engineer, 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 consists of an improved screen or cabinet for use in connection
with a lamp burning spirit of wine or naptha or similar fuel for cooking purposes,
more especially those suited for use in Camps or on small yachts or boats; and in the
manner of arranging the cooking vessels and the heating chamber therein.
A cabinet of sheet metal (see Figs. 1. & 2) or other suitable material is arranged
with a number of holes or openings near the bottom for the admission of air, and
also holes near the top, and one or more openings in the cover a to allow the
consumed gases to escape.
A door bis placed in the side of the cabinet to allow the lamp c to be placed in the
lower part of it. The lamp may be of any ordinary kind, but is preferably of
the pattern for which a Patent No. 7945-1886 has been granted to us.
The cooking
pot d is placed in the upper part of the cabinet over the lamp and rests on suitable
projections or cross bars E E leaving a space between it and the sides and top of the
cabinet.
The cover of the cabinet is removable or hinged on, so as to admit of placing the
cooking pot in position-or the opening may be arranged so as to put the cooking pot
in at the side instead of the top.
This arrangement conducts the incoming cold air to the reservoir of the lamp
keeping the spirit or other fuel cool and conducts the hot gases up the sides and over
the top of the cooking pot, so that almost all the heat is absorbed usefully. It also
prevents the wind disturbing the flame or cooling the sides and top of the cooking
pot.
The upper portion of the cabinet G is removable from the lower portion being
attached to it by means of studs at the back and hasps in the front as show at H.
It is arranged to be placed within the lower portion by the door b which admits the
lamp, the lamp being first removed and placed within the cooking pot, with any other
small article such as a flask for holding spirit or a cup; so that the whole apparatus
is contained within the lower portion of the cabinet, forming a comparatively small
package for transport. A wire bail or preferably a chain I is attached to the upper
portion so as to suspend the whole apparatus whilst in use, or to be a convenient means
for carrying it by when packed up. The cooking pot is provided with a suitable
handle or bail as may be desired.
On the outside of the walls of the cabinet we place chains or bands, or wires either
straight or bent attaching their ends to the walls of the cabinet by means of staples
rivetted on, or other suitable means in such a way that an ordinary earthenware or
other plate may rest between them & the wall of the cabinet as shown at J Fig. 8.

page_text: This is for the purpose of warming the plates and preventing the loss of heat from
the cabinet by radiation from the sides.
The cover of the cabinet may be made in more than one piece leaving space
between the parts instead of cutting openings as shown in Fig. 9 and this arrange-
ment is preferable in the larger sizes of the apparatus.
It is also sometimes convenient in the large sizes to make the cabinet in one piece,
that is with the upper portion not removable from the lower.
The cabinet is preferably square and the cooking pot round so as to obtain the
largest capacity in the cooking pot and the smallest and most convenient shape when
packed for transport; but it may be of any other shape; for instance a hexagon cabinet
and a round pot, or even with both the cabinet and the pot of a round form.
Having now particularly described and ascertained the nature of our said Invention
and in what manner the same is to be performed, we declare that what we claim is:
1. The arrangement of a portable cabinet or screen for a lamp and cooking pot, in
which the heat after striking the bottom of the cooking pot is conducted up
the sides and over the top of the cooking pot and in which the cabinet or screen
protects the cooking pot from being cooled by cold air coming in contact with it
substantially as described.
2. The manner of reducing the external dimensions of the cabinet and the manner
of fastening the one portion upon the other when in use substantially as described.
3. The arrangement of wires or chains on the sides of the cabinet for holding plates
substantially as described.