An Improved Kettle.
Year: 1899

page_text: PROVISIONAL SPECIFICATION.
An Improved Kettle.
DAVID JOHN BALDRY, 137, Goldhurst Terrace, Swiss Cottage, South Hamp-
stead, N.W., Pianoforte Maker, do hereby declare the nature of this invention
to be as follows:-
Improved kettle consists of two conical shape tubes running vertically through
the centre, the tubes are 14 inches in diameter at the base and inches diameter
at the top leaving about 49 square inches in contact with the heat and flame.
The idea of the kettle is that the water gets the heat of the fire through the tubes
inwardly as well as around the kettle outwardly therefore boiling water at one
fourth of the usual time, although the tubes do not take up more space than
one gill in half a gallon of water.
T: 20th dow of Max 1800
DAVID JOHN BALDRY.
I, DAVID JOHN BALDRY, of 137, Goldhurst Terrace, Swiss Cottage, South Hamp-
stead, in the County of Middlesex, Pianoforte Maker, 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:-
The invention relates to an improved kettle.
Kettles as at present constructed, take a considerable time to boil their contents
owing to the fact that the surface exposed to the fire or other heating medium
is comparatively small.
Now the object of the present invention is to remedy the above defect by
constructing a kettle in such manner that a considerably larger area of heating
surface will be obtained and which when in use will boil its contents more rapidly
than heretofore.
In carrying the invention into effect the kettle is provided with two or other
number of tapered tubes passing through the interior thereof fixed at their upper
and lower ends to the body of the kettle by casting, soldering, brazing, or other-
wise.
1
When the kettle is placed upon a coal or other fire some of the products of
combustion are conducted by means of the tubes through the body of the kettle
and during their passage therethrough give off a considerable part of their heat
to the surrounding body of water.
And in order that the said invention may be more clearly understood and
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page_text: readily carried into effect I will proceed aided by the accompanying drawings
more fully to describe the same.
DESCRIPTION OF THE DRAWINGS.
Figure 1 is a side elevation partly in section of a kettle constructed according
to the present invention.
Figure 2 is an end view thereof also partly in section.
Figure 3 is a similar view to Figure 1 but showing a modification in the
arrangement of the tubes and
Figure 4 is an end elevation of Figure 3 showing the tubes in dotted lines.
In the several figures of the drawings like parts are indicated by similar letters
of reference.
Referring to Figures 1 and 2 a represents the body of the kettle, 6 represents
the handle and c represents the spout thereof.
The body a of the kettle is provided with two, or there might be more than
two, vertically disposed tapered tubes which pass through the interior of the
body a of the kettle and are at their upper and lower ends fixed to the
correspondingly perforated top and bottom thereof by casting soldering, brazing
or otherwise.
When a kettle constructed in the manner hereinbefore described is placed upon
a coal or other fire some of the products of combustion are conducted by means
of the tubes which constitute flues through the body of the kettle a and during
their passage therethrough give off a considerable part of their heat to the
surrounding body of water.
In the example given at Figures 3 and 4 the tubes d instead of being vertically
disposed are arranged in a diagonal position with relation to the body of the
kettle that is to say the lower or entrance end of each tube d is situated adjacent
to the front and spout of the kettle whilst the outlet or upper end thereof is
situated in a position adjacent to the rear end of the handle of the kettle a by
which arrangement the tubes d are disposed in the direction of the line of
draught of the fire and the heating effect is thereby improved.
Although I have herein before shown and described the employment of two
tubes passing through the body of the kettle it will be understood that the number
of said tubes may be varied according to circumstances without departing from
the spirit of the invention.
By the means hereinbefore described a kettle is obtained which affords a much
increased heating surface and the contents of which will boil more rapidly than
heretofore.
Having now particularly described and ascertained the nature of the said
invention and in what manner the same is to be performed I declare that what
I claim is
1. In combination with a kettle a tapered tube or tubes arranged in such
manner as to conduct the products of combustion from the fire through the body
of water contained in the kettle substantially as herein shown and described
and for the purpose stated.
2. A kettle constructed and operating substantially as herein shown and
described and for the purpose stated.