Improvements in Hot Water Cans, and in certain other Vessels for Containing Hot Liquids.
Year: 1892

page_text: Date of Application, 26th Mar., 1892
Complete Specification Lett, 24th Dec., 1892-Accepted, 28th Jan., 1893
PROVISIONAL SPECIFICATION.
Improvements in Hot Water Cans, and in certain other Vessels for
Containing Hot Liquids.
I, EDMUND BOTELER CHALMER, of 18; Wyndham Road, Edgbaston,
Birmingham, Warwickshire, Silver and Electro Plate Manufacturers' Manager,
do hereby declare the nature of this invention to be as follows:-
This invention has reference to hot water cans, tea pots, jugs and any other
domestic and other portable vessels of metal pottery ware or glass for containing
hot liquids, except such vessels as are put upon the fire in which to boil liquids.
but this invention applies to those vessels which are heated by means of spirit or
oil lamps or other heaters such as kettles on stands etc. as my invention enables the
kettle to be taken off the stand and placed upon a table or other article without
fear of marking the same. This invention consists in constructing or preparing
the bottoms of the said vessels in the manner herein described so as to prevent the
heat of the vessels from marking the table or other article on which they may be
placed and in many cases my invention can be applied to vessels already in use that
have not been specially made with this object in view.
In carrying out this invention 1 fix outside the bottom of any of the said vessels
a piece or pieces of wood horn ivory bone vulcanite or other suitable substance
which is a bad conductor of heat so that although the vessel may contain boiling
water the heat cannot reach the table or other article on which it may be placed.
The said wood or other non-conducting substance may be made in various forms
such as studs or buttons, blocks or rings to project slightly below the bottoms of
the said vessels and various means may be adopted for fixing the said studs or
buttons blocks or rings to the bottoms of the said vessels. For instance when the
wooden or other non-conducting pieces are made in the forms of studs or buttons
and applied to a hot water can or other said vessel the said studs or buttons can
readily be fixed by fitting in stamped or other metal bosses which are soldered or
otherwise fixed to the bottom of the can or other vessel, the said studs having
enlarged bases and being fitted in the said bosses from their upper side before the
said bosses are fixed to the can or other vessel, so that the enlarged bases of the
studs or buttons will make them very secure. Or the said enlarged bases may be
dispensed with and the studs be fixed in the bosses by plaster of paris or cement
When the said
or by being screwed or driven into the bosses or by other means.
wooden or other non-conducting pieces are made in the form of a round or oval
ring or block such ring or block is so inserted as to either raise the vessel from the
table or to intervene between the vessel and the table and the ring or block is fixed
to the base of the vessel by a bottom rim on the vessel being closed over the edge
of the block or ring all round or when applied to round vessels the ring or block
may screw in or it may be fastened by means of pins or pegs screws cement or
other means.
When my invention is applied to the said vessels of pottery or glass I form,
during the process of manufacture of the vessels and in the base thereof, a recess
or recesses, or a boss or bosses having a recess or recesses, of a size and shape to
admit one or more of the said studs or buttons blocks or rings which are secured in
the said holes or recesses by cement or by other means, the sides of the said
recesses being under cut and roughened if required so as to make the said studs
buttons blocks or rings more secure.
Dated this 25th day of March 1800
CHARLES BOSWORTH KETLEY,
Agent for the Applicant.

page_text: COMPLETE SPECIFICATION.
Improvements in Hot Water Cans, and in certain other Vessels for
Containing Hot Liquids.
1, EDMUND BOTELER CHALMER, of 18, Wyndham Road, Edgbaston,
Birmingham, Warwickshire, Silver and Electro Plate Manufacturers' Manager,
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:→
This invention has reference to hot water cans, teapots, hot water jugs and any
other domestic and other portable vessels of metal or pottery ware for containing
hot liquids except such vessels as are put upon the fire in which to boil liquids but
this invention applies to those vessels which are heated by means of spirit or oil
lamps or other heaters such as kettles on stands etc. as my invention enables the
kettle to be taken off the stand and placed upon a table or other article without
any fear of marking the same. This invention consists in constructing or pre-
paring the bottoms of the said vessels in the manner herein described so as to
prevent the heat of the vessel from marking the table or other article on which
they may be placed and in many cases my invention can be applied to vessels
already in use that have not been specially made with this object in view.
In carrying out this invention I fix outside the bottom of any of the said vessels
pieces of wood horn ivory bone or other suitable substance which is a bad conductor
of heat so that although the vessel may contain boiling water the heat cannot reach
the table or other article on which it may be placed.
The said wood or other non-conducting substance may be made in various forms
but preferably as studs or buttons to project below the bottoms of the said vessels
and various means may be adopted for fixing the said studs or buttons to the
bottoms of the said vessels. For instance when the wooden or other non-
conducting pieces are made in the forms of studs or buttons and applied to a
hot water can or other said vessel the said. studs or buttons can readily be fixed
in stamped or other metal bosses which are soldered or otherwise fixed to the
bottom of the can or other vessel, the said studs having enlarged bases so as to
make the studs or buttons very secure. Or the said enlarged bases may be
dispensed with and the studs be fixed in the bosses by plaster of paris or cement
or by being screwed or driven into the bosses or by other means.
On the accompanying drawings
Fig.. is a side elevation and Fig. 2 is a plan of an ordinary hot water can
provide with three of the said studs or buttons in accordance with my invention
Fig. 3 is a sectional elevation and an inverted plan of one of the said studs or
buttons on an enlarged scale and Fig. 4 is an elevation and plan of the same;
Fig. 5 is a sectional elevation and an inverted plan of a modified form of the said
studs or buttons; other methods of constructing the said studs or buttons and of
fixing them to the bottoms of the said vessels are respectively shewn by Figs. 6.
and 7; Figs. 8 and 9; Fig. 10; Fig. 11; Fig. 12; Fig. 13; and 14 and by
Figs. 15 and 16.
The same letters of reference indicate the same or corresponding parts in all the.
figures of the drawings.
A is the hot water can having fixed on the bottom a thereof according to' this
invention three (or more) of the studs or buttons of wood, horn, ivory, bone or other
suitable substance marked B. I fix the said studs or buttons B to the bottom of
the hot water can preferably by each of the studs or buttons being fixed in a
stamped sheet metal or other metal boss C (see Figs. 1, 2, 3 and 4) which is like a
cup inverted, the rim being closed down over the enlarged base of the stud or
button B as shewn in Fig. 3 so as to secure the boss and stud or button together.
The boss C is then soldered at d to the bottom of the can. There are small

page_text: holes in the boss C through which air circulates and assists in keeping cool
the stud or button B. Fig. shews a modified form of the sheet metal bosses C
made larger and open at the top where it is soldered on to the bottom a of
the can.
Or, as shewn by Figs. 6 and 7, the stud or button B and the sheet metal boss C
may be fixed together by a central screw passing therethrough on which is a
nut g.
When the nut g has been screwed up tightly, the projecting end of the
screw is filed off and the nut (forming the top of the boss) is soldered to the
base a of the can.
Or, as shewn by Figs. 8 and 9 the head of the screw may be soldered to the
base a of the can and then the boss C be threaded on the screw and secured by the
stud or button B being screwed upon the screw. Or as shewn by Fig. 10
the boss C may be omitted.
Fig. 11 shews another form in which I make the studs or buttons B which in
this case does not have an enlarged base but has a nick turned in it into which
the edge of the cup like boss C is closed; or as shewn by Fig. 12 the studs or
buttons B may be screwed into the boss C or fixed therein by cement.
I apply my invention to the bottoms of metal tea
jugs, tea kettles and other of the said portable metal vessels for containing hot
coffee pots, hot water
pots
liquids similarly as above described with reference to a hot water can. It is to
be understood that in applying my invention to tea kettles only apply it to
those tea kettles which when being heated by a spirit lamp are supported by one
of those well known stands which has a flange on which the tea kettle stands.
This flange will then protect the said studs or buttons from becoming heated or
being injured by the flame of the spirit lamp.
When my said invention is applied to the said vessels of pottery I form, during
the process of manufacture of the vessels and in the base thereof, recesses, or
bosses having recesses, of a size and shape to admit one of the said studs or
buttons which are secured in the said holes or recesses by cement or by other
means, the sides of the said recesses being undercut and roughened if required
so as to make the said studs or buttons more secure. A part of the bottom a
of a pottery ware tea pot or other like vessel with one of my said studs or buttons
attached is shewn in sectional elevation and in inverted plan by Fig. 13 and the
stud or button and its fixing boss are shewn separately by Fig. 14. It will be
seen that there is a flange ground the upper part of the boss C (formed in any
convenient manner as by soldering the disc G thereto as shewn) of a size to pass
into the recess in the boss H formed on the bottom a where the flange g and
metal boss C fixed thereto are secured by cement which is pressed in so as to fill
the space in the recess as shewn in Fig. 13.
Or, as shewn in Fig. 15 the upper part of the metal boss C may be open and bell
mouthed so that by pressing the stud or button B this bell mouth will be spread
out as a flange and engage with the sides of the undercut recess as shewn in
Fig. 16 thus firmly fixing the boss C and its stud or button B in place. To
facilitate the spreading of the bell mouth part of the boss C as aforesaid the
bell mouth may be slit at intervals as shewn at i in Fig. 15.
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. The herein described improvements in hot water cans, teapots, hot water
jugs, tea kettles of the kind herein referred to, and other vessels of the kinds
herein set forth to prevent the heat of the said vessels marking a table or other
article on which they may be placed, consisting in the employment on the bottoms
of the said vessels in the manner substantially as set forth and shewn of three or
nore studs or buttons of wood horn ivory bone or other suitable substance which is
bad conductor of heat.
2. As a means for fixing non conducting studs or buttons to the bottoms of hot

page_text: water cans and other vessels of the kinds herein referred to and for keeping the
said studs or buttons cool, the use of the hollow sheet metal bosses such as C fixed
to the studs or buttons and adapted for fixing to the bottoms of the said vessels
substantially as herein before set forth.
3. A hot water can or other like vessel of the kinds herein referred to having
non-conducting studs or buttons fixed on its bottom in any of the several ways
substantially as hereinbefore set forth and shewn and for the purpose stated.
Dated this 23rd day of December 1892.
CHARLES BOSWORTH KETLEY,
Agent for the Applicant.