Year: 1897

page_text: Date of Application, 15th Feb., 1897-Accepted, 3rd Apr., 1897
Manufacturer, do hereby declare the nature of my said invention and m what manner
the same is to be performed, to be particularly described and ascertained in and by the
following statement :-
This invention relates to a transportable cooking apparatus or caldron adapted to be
heated from within and specially destined to be employed in the field or military
kitchen, its aim being directed to a proportionate lightness resistibility and convenient
service, a quick heating of the contents of the caldron and active retention of the heat
of same being at the same time secured.
Referring to the accompanying drawings
:
Fig. 1 is a sectional view of a caldron suspended within a two-wheel frame, according
to the invention; the section being taken on line x-x of Fig. 3.
Fig. 2 is an end elevation partly in section.
Fig. 3 a plan of the caldron without frame,
Fig. 4 a vertical cross-section on line - of Fig. 3,
Fig. 5 a horizontal section on line y-y of Fig. 4,
Fig. 6 represents a portion of the frame of the cart for carrying the caldron.
The caldron preferably made from strong sheet metal consists of cylindrical mantles
or casings a, a, the air space, between which, serving as a suitable insulating
means against the radiation of beat.
The inner heating body or tube concentrically secured to the bottom of the
caldron forms a circular opening at the base for providing the grate r.
The said heating body or tube b has usually the form of a truncated inclined cone
as shown in Figs. 1, 4 & 5 and by reason of such form, the upper end of the tube.
opens eccentrically at the covering plate c of the caldron (Fig. 3) in such manner
that on the one side of the same a wide sector chamber is formed for the arrangement
of a lid d.
On opening this lid d, an adequately large opening is uncovered, which enables the
contents of the caldron being conveniently ladled out, filled or stirred up. On the
other hand, the space would not be obtainable for a similar large opening, if the inner
beating body or tube b were arranged as a straight concentric tapering tube
in the centre of the caldron, when approximately the same dimensions would be
maintained.
The heating body is covered at the top with a plate 6 adapted to be turned over
by means of hinges, the upright waste pipe or chimney e being arranged on one side
of the said plate or eccentrically to the cylindrical casing a, so that the other side of
the plate forms a fire door f adapted to be opened upwards. Since the fire door is
thus situated in juxtaposition to the lid d of the caldron, both may be served
independently or from the front and rear part respectively. Moreover, the distance
between both lids or doors is sufficiently great especially when the same are in the
raised position where they form a sort of intermediate wall, to exclude any pollution
of the contents of the caldron by the fuel.
The inner heating body or tube b, whose broad base opening is covered by the
grate which is secured in any suitable manner at the bottom of the caldron, is, as.
shown in Figs. 1, 5, 4, preferably fluted or corrugated round its circumference,
whereby not only a larger heating surface for readily or rapidly heating the
Γ

page_text: contents of the caldron is obtained but also a greater stiffness or strength of the
heating body b is secured, which at the same time serves as the interior wall of
the caldron.
The caldron constructed as described is carried by a two-wheel carriage frame A as
shown in Figs. 1 and 2.
Each of the lateral pieces of the frame shown in Fig. 6 forms a carrier for the
wheel axle and these lateral pieces are connected by a cross head.
They are provided with bearings q, having hinged caps, in which bearings,
trunnions p, projecting at opposite sides of the caldron (Figs. 3 & 4) are journalled;
these trunnions being provided with ribs p' engaging annular grooves of the
bearing.
If required, the caldron may be raised from its bearings and stationarily mounted
in any suitable manner.
The operation or manner of putting the caldron in use is the same in each case the
grate within the inner heating body b being fed with fuel at the hinged door and
the filling and withdrawing of the contents of the caldron being effected through the
opening usually closed by the lid d.
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 :-
1. An improved transportable cooking apparatus characterized by an inner heating
body or tube (b) of an inclined conical shape surrounded by a caldron consisting of a
cylindrical casing with a jacket, such tube being concentrically attached at the
bottom and provided with a fire grate (r) & ending with its upper narrower end
eccentrically at the circular cover of the caldron beneath a chimney and fire door (f)
so that space is provided for a one sided, proportionately large discharge opening
baving a lid (d), substantially as described and shown in the accompanying
drawing.
2. In an improved transportable cooking apparatus as described in Claim 1. the
arrangement of an inner heating body which is corrugated or fluted for increasing
its strength and heating surface, substantially as described and shown in the
accompanying drawing.
Dated the 15th dom
1000