IMPROVEMENTS IN CAMP KETTLES
Year: 1876

page_text: LETTERS PATENT to William Clark, of 53, Chancery Lane, in the County of
Middlesex, Patent Agent, for the Invention of "IMPROVEMENTS IN CAMP
KETTLES" A communication from abroad by Alexis Gervais, Louis Murisier,
and Paul Aurèle Perret, trading under the name or style of A. Gervais and
Company, of Paris, France.
ealed the 28th October 1876, and dated the 16th May 1876.
PROVISIONAL SPECIFICATION left by the said William Clark at the Office
of the Commissioners of Patents on the 16th May 1870.
WILLIAM CLARK, of 53, Chancery Lane, in the County of Middlesex, Patent
Agent "IMPROVEMENTS IN CAMP KETTLES."
This Invention relates to improvements in camp kettles moro especially intended
for use by an army in the field.
The Invention is designed to remedy the defects of camp kettles in present use,
which in fair weather require about three hours at least for making soup, and this
only by a considerable expenditure of fuel, while in rough weather the fire is liable
to be dispersed or extinguished by wind or rain.
By the improvements of this Invention a considerable saving in fuel is ensured,
and much less time is occupied in cooking, whatever may be the state of the
weather.
The accompanying Drawing illustrates the improved camp kettles of this
Invention by way of example.
Figure 1 shows a longitudinal vertical elevation of the kettle, which is of flattened
form; Figure 2 a plan, and Figure 3 an end view of same; Figure 4 is a transverse
section, on line 1, 2, Figure 1, and Figure 5 a longitudinal section on line 3, 4,
Figure 2; Figure C is a plan of the reservoir top; Figure 7 a longitudinal section
of same on line 5. 6; Figure 6 and Figure 8 a transverse section on line 7, 8,
Figure 6; Figure 9 shows two kettles combined in vertical section, and Figure 10 a
longitudinal section of same on line 9, 10, Figure 9. The same letters of reference
apply to all the above Figures.
a kettle, the bottom 6 of which is made arched as shown, whereby an increased
heating surface is obtained; c, deep tray or tin to hold water for cooking vegetables,
and forming a cover to kettle a. The water in vessel c is heated by the steami
from the water in the kettle ;, lid of vessel c hinged thereto at e; f, bandle
of c; g, bail of kettle a; h, stiffening ribs or strips of metal, soldered or rivetted to
[Price 6d.]

page_text: the kettle on either side, and abutting against each other when the two kettles are
placed together, as shown in Figure 10, the concavity i made on one sido of cach
kettle forming in this case a draft chimney j; k, hollow made in the ground to admit
of placing the fuel under the kettles.
A number of these kettles may be combined so as to have two, three, or more
draft chimneys, with a single tunnel b running beneath the whole series of kettles,
which are placed over a trench made in the ground.
SPECIFICATION in pursuance of the conditions of the Letters Patent filed by
the said William Clark in the Great Seal Patent Office on the 1st November
1870.
WILLIAM CLARK, of 53, Chancery Lane, in the County of Middlesex, Patent
Agent. "IMPROVEMENTS IN CAMP KETTLES." A communication from abroad by
Alexis Gervais, Louis Murisier, and Paul Aurèle Perret, trading under the name or
style of A. Gervais and Company, of Paris, France.
This Invention relates to improvements in camp kettles heated with green wood
or other fuel, and moro especially intended for use by an army in the field. By
these improvements considerable saving in fuel is ensured and less time occupied
in cooking.
The camp kettles at present in use require in fine weather at least three hours
for making soup, which is even then only accomplished by the expenditure of a
considerable quantity of wood, while in rough weather the fire being fully exposed
to the wind and rain is very liable to become dispersed and extinguished. With
a view to remedy these objections the improved camp kettle of this Invention is
constructed 1st, with an arched bottom forming a horizontal fluo or passage from
front to back for the products of combustion; 2nd, with a lid in the form of a
deep tray or pan in which vegetables, &c., may be cooked by steam heat; 3rd, with
stiffening ribs soldered or rivetted to the sides which form abutting surfaces for the
kettles when they are placed together back to back. Two, four, six, or eight of
the kettles may be combined together so as to have one, two, three, or four vertical
flues or chimneys between them leading upwards from a single horizontal flue
extending beneath the whole series of kettles, this horizontal fluo being partly
formed by the arched bottom of the kettles and partly by a shallow trench made in
the ground over which the kettles are stood. The advantage of the arch form of the
bottom is that it retains the heat and affords double the extent of heating surface.
The ribs above mentioned ensure the closo abutment of the kettles at either side of
the vertical and horizontal flues, so that cooking may be carried on with the saine
facility as in a kitchen.
In order that the Invention may be more readily understood, I have represented
in the accompanying Drawing an example of this improved camp kettle.
Figure 1 shows a longitudinal vertical elevation; Figure 2 a plan, and Figure 3
an end view of the kettle, which is of kidney form in plan; Figure 4 is a transverse
section on line 1, 2, Figure 1, and Figure 5 a longitudinal section on line 3, 4,
Figure 2; Figure 6 is a plan of the tray shaped cover; Figure 7 a longitudinal
section of same on line 5, 6, Figure 6; and Figure 8 a transverso section on
line 7, 8, Figure 6. Figure 9 shows in vertical section two kettles combined,
and Figure 10 a horizontal section of same on line 9, 10, Figure 9. The same
letters of reference apply to all the above Figures.
The kettle a is made with a semicircular arched bottom b, and provided with a
tray shaped cover c to hold water for cooking vegetables, the water being heated
by the steam from the water in the kettle a; d, lid of vessel c hinged thereto at o;
f, handle of vessel e; g, bail of kettle a; h, k, ribs or strips of metal soldered or
rivetted (or both) to the kettle on either side, and abutting against each other
when two kettles are placed together, as shown in Figure 10. The space i between

page_text: the concave surfaces of the kettles forming a chimney j; k, hollow made in the
ground to receive the fucl placed under the kettles.
Having described the nature of the said Invention and the manner of performing
the same, I declare that what I claim as the Invention to be protected by the
herein-before in part recited Letters Patent is-
1st. Constructing camp kettles with arched bottoms to form a flue for the passage
of the products of combustion as herein-before shown and described.
2nd. Constructing the lid or cover in the form of a tray of sufficient depth for
cooking vegetables therein, as shown and described.
3rd. The application of stiffening ribs for making a joint between the kettles
when several are combined together, as shown and described.
In witness whereof, I, the said William Clark, have hereunto set my hand
and seal, this First day of November, in the year of our Lord One thousand
eight hundred and seventy-six.
Wª.. CLARK. (L.S.)