IMPROVEMENTS IN THE CONSTRUCTION OF TEAPOTS AND SIMILAR VESSELS FOR PREPARING INFUSIONS FOR DOMESTIC PURPOSES
Year: 1883

page_text: LETTERS PATENT to Joseph Ridge of Sheffield in the County of York for
an Invention of "IMPROVEMENTS IN THE CONSTRUCTION OF TEAPOTS AND
SIMILAR VESSELS FOR PREPARING INFUSIONS FOR DOMESTIC PURPOSES'
"
PROVISIONAL SPECIFICATION left by the said Joseph Ridge at the Office
of the Commissioners of Patents on the 12th May 1883.
JOSEPH RIDGE of Sheffield in the County of York " IMPROVEMENTS IN THE
CONSTRUCTION OF TEAPOTS AND SIMILAR VESSELS FOR PREPARING INFUSIONS FOR
DOMESTIC PURPOSES
"
This Invention relates to improvements in the construction of Teapots, Coffee
pots and other similar vessels used for preparing infusions for domestic purposes;
having for its object the more complete abstraction of the strength of tea or other
ingredients, the more rapid separation of the liquid from the said ingredients, and
to keep the entrance to the spout perfectly free from obstruction.
Hitherto the opening or entrance to the spout has been protected in Teapots by
a perforated plate or grid of wire work against which the tealeaves are drawn and
so obstruct the passage of the liquid through the spout.
According to my invention I construct the Teapot (or other vessel) with a fixed
perforated false bottom within a short distance from the bottom of the pot or
vessel and preferably strengthened by ribs on the underside.
spout is made between the perforated and the solid bottom.
that the large area of the perforated plate, enables the liquid
The opening to the
Thus it will be seen
infusion to rapidly
filter through into the open space below, and leaves the opening to the spout
perfectly free, and clear from leaves.

page_text: SPECIFICATION in pursuance of the conditions of the Letters Patent filed by
the said Joseph Ridge in the Great Seal Patent Office on the 12th November
1883.
JOSEPH RIDGE of Sheffield in the County of York, IMPROVEMENTS IN THE
CONSTRUCTION OF TEAPOTS AND SIMILAR VESSELS FOR PREPARING INFUSIONS for
DOMESTIC PURPOSES
"
My Invention relates to improvements in the construction of Teapots, Coffee-
pots, and similar vessels for preparing infusions for domestic purposes, having for
its object the more complete extraction of the strength of the inaterial, and for the
better separation of the liquid from the liquid or other substance from which the
infusion is made, so that the passage or opening into the spout of the vessel may
be kept free and open for the liquid to flow through.
Hitherto the leaves (or other substances) have been kept from entering the
spout by a perforated plate, or wire grid, or in the case of ground coffee by means
of a flannel bag into which the coffee was placed; but in the former case the leaves
were carried by the flow of the liquid against the perforated plate and impeded the
flow of the liguid into the spout, and in the latter case, the coffee clung to the sides
of the bag and the infusion could not penetrate through into the vessel.
To remedy these defects I construct a teapot in the following manner, the
opening into the spout from the interior of the pot I place as low down as possible,
and over it I fix a perforated false bottom, by preference the full size of the area of
the pot. The false bottom may be either fixed horizontally or at an angle, sloping
downwards from the top of the spout entrance, and it may be either flat, arched,
or strengthened by ribs. The large area of the perforated bottom plate allows the
liquid to filter rapidly through into the space below, and keeps a free passage
through the spout.
In the construction of a coffee pot, I prefer (instead of the fixed perforated false
bottom as above described) to use a long perforated tubular receptacle, suspended
from the top of the inside of the pot, into which the coffee is placed, outside the
receptacle is a loose flannel bag to intercept the flour or finest particles of the
coffee, that find their way through the perforations of the recptacle. Thus the
bulk of the Coffee is retained in the perforated receptacle the large area of its
perforated surface allowing the liguid to pass rapidly through, while the flannel
bag retains the flour coffee which is not sufficient by itself to clog up its meshes.
The metallic receptacle is made loose and separate from the pot, and may be placed
inside, under the lid, or it may be made in conjunction with the lid, and fit on the
top of the pot.
Fig. 1, represents a Teapot, (partly shown in section,) constructed according to
my invention, with the perforated false bottom inclined from the top of the opening
to the Spout. A is the false bottom perforated all over its surface, B is the
opening to the spout, C is a strengthening rib.
Fig 2, represents a Coffee pot (partly shown in section) constructed according to
my invention, D is the perforated receptacle, E is the flannel bag surrounding the
receptacle D, the receptacle carries the lid of the Coffee pot in this modification,
and fits tightly upon the top edge of the coffee pot, so that when removed the
large opening enables the interior to be cleaned with facility.
Having now described and fully ascertained the nature of my said invention,
and the manner in which it may be carried into effect, I would observe in
conclusion that what I consider to be novel and original and therefore claim as

page_text: the invention secured to me by the hereinbefore in part recited Letters
Patent is :-
The construction of Teapots, Coffee pots, and similar vessels for preparing
infusions for domestic purposes, substantially as hereinbefore described and as
illustrated in the annexed sheet of drawings.
In Witness whereof I the said Joseph Ridge, have hereunto set my hand and
seal, this 10 day of November in the year of Our Lord, One Thousand
Eight hundred and Eighty three.