Improvements in Kettles and like Utensils.
Year: 1894

page_text: Date of Application, 1st May, 1894-Accepted, 30th June, 1894
COMPLETE SPECIFICATION.
Improvements in Kettles and like Utensils.
A communication from abroad by Dr. DAVID BROWNE and JUAN BAUTISTA
STEINFORT, of 4, Rue de Hornes, Brussels, Belgium, both Dentists.
I, JOHN PATRICK O'DONNELL, of 70 and 71 Palace Chambers, Bridge
Street, Westminster, in the County of Middlesex, Civil 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:
The object of this invention is to provide for the more rapid heating of liquid
in kettles and like utensils and this result is effected in the following manner.
The bottom of the kettle is formed (either by stamping or casting) of a
corrugated surface. The corrugations are formed of V or U or any preferable
section. By this means a greater area of heating surface is presented to the fire
causing the water to be more rapidly heated than heretofore. To ensure that all
the divisions formed by these ridges or corrugations are equally filled with water
they are connected by means of a tube such tube where it passes through each
division having a hole cut in it thus forming a free circulation of water in all the
divisions. In lieu of a tube a crosswise indentation or canal of a suitable shape
may be stamped or cast as an alternative method.
For the purpose of utilizing to the best advantage all the heat from the fire on
the outside of the corrugations is arranged (in any suitable manner) a circular strip
or collar of material which said strip may if desirable be made removable. The
object of this circular strip is to guide the flames from the fire on to the under side
of the kettle, a draught being caused in the space between the kettle and the circular
strip in the direction of the arrows.
In order that my invention may be better understood and more readily carried
into effect I will describe the drawing hereunto annexed, in which―
Figure 1 is an elevation of my V shaped form of corrugation.
Figure 1 is an elevation of my U shaped form of corrugation.
Figure 2 is an underneath view of the
and connecting tube.
shaped corrugations, flame guiding strip
Figure 2 is an underneath view of the U shaped corrugations, flame guiding strip
and connecting tube.
Figures 3 and 4 are underneath views showing the arrangement of connecting
canals in lieu of a tube.
Figures 5 and 6 show alternative forms of corrugations, those in Figure 5 being
rounded and the ones in Figure 6 being cut square, at the ends.
The various letters have reference to similar parts in the several figures of the
drawing.
B is the body of the kettle; A are the corrugations formed on the bottom of
the kettle; P is the circular strip of metal for guiding the flames on to the
corrugations of the kettle; T is the tube passing through and making connection
with the various divisions, holes D being cut in the tube T at E; T₁ is a channel
or canal used in preference to the tube when desirable. The ring P can be soldered
or affixed in any other convenient manner.

page_text: 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 :-
In kettles and like utensils, the combination of V or U shaped projections forming
the underneath side of the kettle, with a connecting channel and surrounding jacket,
or without said connecting channel, all substantially as described for the purposes
herein set forth and as illustrated in the accompanying drawing.
Dated this 1st day of May 1894.
JOHN PATRICK O'DONNELL,
Applicant.