Improvements in and relating to Tea and Coffee Pots, said Improve- ments being also Applicable to such Vessels when Employed for the Delivery of other Alimentary Fluids and Refreshing Beverages.
Year: 1890

page_text: Date of Application, 27th June, 1>90
Complete Specification Left, 20th Apr., 1891-Accepted, 23rd May, 1891
PROVISIONAL SPECIFICATION.
Improvements in and relating to Tea and Coffee Pots, said Improve-
ments being also Applicable to such Vessels when Employed
for the Delivery of other Alimentary Fluids and Refreshing
Beverages.
We HENRY COLE WILLMOTT of 23 Leighton Terrace, Kentish Town N.W.
Urn Manufacturer and CHARLES EDWARD FRANK 11 St. John's Road, Clifton,
Bristol, Science Teacher, do hereby declare the nature of this invention to be as
follows:-
It
The object of our invention in its primary application is to produce a vessel of
such a construction and so arranged that a strong infusion of tea contained in a
separate portion of the vessel is delivered through the spout at the lip on commingling
with the boiling water passing from the other and main portion of the vessel.
forms an essential feature in our invention as hereinafter explained that the strong
infusion aforesaid is maintained comparatively cool, and we are thereby enabled to
prevent the aroma and delicate flavour being destroyed, as occurs when the infusion
becomes overheated, and a "stewing" result would follow.
In carrying out our invention the main or hot water compartment at its front end
assumes the form of an inclined plane extending from just above the base of the
spout, to the top of the pot or vessel; the bottom and sides of this inclined surface
are surrounded by a strip of thin metal hereinafter termed the "guard rim." This
latter is of quadrantal section, having the convexity upwards, with a view to prevent
or retard the contact of currents of heated air or gas.
The strong infusion above referred to is contained in a portion of the vessel or
pot of the same width as the latter, but of triangular configuration in vertical section,
so as to correspond in shape with the portion cut off from the main portion of the
pot or vessel by the above mentioned inclined plane.
The two inclined faces above mentioned are arranged so as to be perfectly flat
(and not curved) and are kept at a distance apart of not less than th of an inch.
Suitable studs or equivalents being provided to ensure that there shall always be a
clear air space of the width stated between the two parallel inclined surfaces, and
"will be set up
open to the atmosphere. By this arrangement "convection currents
in the air space by contact with the lower of the two inclined faces viz. that of the
hot water compartment, a rapid current of air will then circulate through the space
between the two inclined planes; and, it is as before stated, an essential feature in
our invention that we rely upon this circulation to keep the strong infusion com-
paratively cool. The guard rim above mentioned, is essential as before stated to
The connecting pipe or
prevent the ingress of heated air from the fire or gas.
conduit leading from the minor portion of the pot containing the strong infusion is
led away into the main discharge spout of the tea pot quite clear of the hot water
compartment and so to avoid the undue heating of the infusion which would other-
wise follow. It is also provided with a suitable valve or controlling device to allow
of the regulation of the flow, at will, of any given quantity of the strong infusion
relatively to the boiling water passing up the main surrounding spout of the vessel,
in using which latter, in accordance with our improvements, when of comparatively
small size, it might be provided with a handle as in the case of an ordinary teapot
but, preferably, as would apply in the larger types of said vessels, provision would
have to be made for the mounting of the vessel on pivots to allow of the facile use
of same.
Within the minor portion before referred to of the vessel and to suit the con-
figuration thereof, is introduced a removable wire gauze or other suitable straine

page_text: into which is placed the tea-in the case of a teapot-from which the infusion is to
be prepared. The necessary quantity of boiling water having been introduced the
strainer with its contents is placed into the receptacle before mentioned. We then
by means of a suitable presser force the concentrated tea extract through the strainer
or colander aforesaid, whereupon the latter with the spent tea-leaves therein is
removed from the vessel. Preferably the upper portion of the strainer would be
continued above the top of the containing vessel, said upper or continued portion
not being perforated, as we propose that a sufficient charge of tea should be
introduced to allow of a quantity of infusion or extract being produced to fill or
nearly fill the minor portion of the vessel serving for its reception.
Apart from the primary application of our said invention above referred to; our
improvements may also, with suitable modifications, be utilized for the delivery of
other alimentary fluids; so also in the cases of refreshing beverages, including
various cold and effervescing drinks as distinguished from the supply or delivery of
potable fluids which must necessarily be prepared with hot water.
Dated this 23rd day of June 1890.
JAMES STEVENSON,
Gray's Inn Chambers, 20, High Holborn, London, W.C.,
Agent for Applicants.
COMPLETE SPECIFICATION.
Improvements in and relating to Tea and Coffee Pots, said Improve-
ments being also Applicable to such Vessels when Employed
for the Delivery of other Alimentary Fluids and Refreshing
Beverages.
We HENRY COLE WILLMOTT of 23 Leighton Terrace, Kentish Town, N.W.,
Urn Manufacturer, and CHARLES EDWARD FRANK, 11 St. John's Road, Clifton,
Bristol, Science Teacher, do hereby declare the nature of this invention and in
what manner the same is to be performed, to be particularly described and ascer-
tained in and by the following statement: --
The object of our invention, in its primary application, is to produce a vessel of
such a construction and so arranged that a strong infusion of tea or the like contained
in a separate portion of the vessel is delivered through the spout at the lip on
commingling with the boiling water passing from the other and main portion of the
vessel. It forms an essential feature in our invention, hereinafter explained, that
the strong infusion aforesaid is maintained comparatively cool, and we are thereby
enabled to avoid the aroma and delicate flavour being destroyed as occurs when the
infusion becomes overheated and a "stewing" result would follow.
In the annexed explanatory drawing
Figure 1 is a vertical section, and Figure 2 a plan of our improved vessel, shown
in the form which it assumes when employed as a tea pot or like vessel.
A is the water chamber and B the infusion compartment, the latter being
supported the requisite distance from the front inclined surface of the chamber A
by the studs c in order to retain a sufficient clearance or air space D between the
two portions of the vessel. The spout of the infusion chamber B enters the
spout a of the water chamber A at or near its outlet, a' being the outlet orifice for
the water and the outlet orifice for the infusion. C is the guard rim hereunder
described.
In carrying out our invention the main or hot water compartment A at its front
assumes the form of an inclined plane extending from just above the base of the
spout a to the top of the pot or vessel; the bottom and sides of this inclined
surface being surrounded by a strip of thin metal-hereinafter termed the "guard"
rim-C, with a view to prevent or retard the contact of currents of heated air or
gas with the infusion receptacle B.

page_text: The strong infusion above referred to is contained in a portion B of the vessel or
pot of the same width as the latter, but of triangular configuration in vertical
section, so as to correspond in shape with the portion cut off from the main portion A.
of the pot or vessel by the above mentioned inclined plane.
The two inclined faces above mentioned are arranged so as to be perfectly flat,
and are retained at a distance apart of not less than th of an inch by suitable
studs or equivalents c, so that a clear air space D of the width stated is provided
between the two parallel inclined surfaces and open to the atmosphere. By this
arrangement" convection " currents will be set up in the air space D by the contact
of the fresh current of cold air with the lower of the two inclined faces, viz. :-that
of the hot water compartment, a rapid current of air will then circulate through the
space between the two inclined planes, and, it is as before stated, an essential
feature in our invention that we rely upon this circulation of the air to keep the
strong infusion comparatively cool. The guard rim C above mentioned is essential
as before stated to prevent the ingress of heated air from the fire or gas used for
heating the vessel A into the air space D. The connecting pipe or conduit 6 leading
from the minor portion B of the pot containing the strong infusion is led away into
the main discharge spout a of the tea pot quite clear of the hot water compartment,
so avoiding the undue heating of the infusion which would otherwise follow. The
pipe b may also be provided with a suitable valve or controlling device to allow of
the regulation of the flow, at will, of any given quantity of the strong infusion
relatively to the boiling water passing up the main spout a of the vessel A; but, we
prefer to so arrange the sizes or areas outlets a, b, of the spouts a, b, that the liquids
commingle and are delivered in the required relative proportions. If desired, two
or more infusion chambers B may be employed with one water chamber A, the
several spouts terminating at 1 with the outlet orifice a', of the water spout a the
vessel being in other respects constructed in the same manner as that already
described. In using a vessel, when of comparatively small size, constructed
according to our improvements, we provide same as shown, with an ordinary handle;
but, in the larger types of said vessels provision would have to be made for the
mounting of the vessel on pivots to allow of the facile use of same.
Although we have referred to a controlling cock, strainer and presser we wish it
to be known that as these are not essentially necessary in carrying out our invention
we have not illustrated same in the annexed drawing nor do we make any claim in
respect of same.
Apart from the primary application of our said invention above referred to our
improvements may also with suitable modifications be utilized for the delivery of
other alimentary fluids; so also in the cases of refreshing beverages including
various cold effervescing drinks, as distinguished from the supply or delivery of
those potable fluids which must necessarily be prepared with hot water.
Having now particularly described and ascertained the nature of our said inven-
tion and in what manner the same is to be performed, we declare that what we
claim is :-
Essentially the production of a vessel the construction of which is so devised and
arranged that a strong infusion of tea or the like contained in a separate portion of
said vessel is delivered through the spout at the lip on commingling with the boiling
water passing from the other and main portion of the vessel, so as to ensure that
this strong infusion is maintained comparatively cool and thereby to avoid the
aroma and delicate flavour being destroyed substantially as herein set forth.
Dated this 27th day of March 1891.
JAMES STEVENSON,
Gray's Inn Chambers, 20, High Holborn, London, W.C.,
Agent for Applicants.