Improvements in Strainer Attachments for Tea and Coffee Pots or other Vessels.
Year: 1888

page_text: Date of Application, 23rd July, 1888
Complete Specification Left. 23rd Apr., 1889-Accepted, 22nd June, 1889
PROVISIONAL SPECIFICATION.
Improvements in Strainer Attachments for Tea and Coffee Pots or
other Vessels.
I, ARTHUR HART BOWMAN, of 472 Brixton Road, in the County of Surrey,
Jeweller, do hereby declare the nature of this invention to be as follows:-
My invention relates to a detachable strainer attachment for tea and coffee pots
or for any vessel from which it may be desired to pour a liquid or infusion strained
from the solid matter with which it may be mixed.
To carry out my invention 1 constructed my strainer of ganze or other perforated
inaterial or earthenware of extended surface, and provided with a flange either
flexible or so formed as to make a joint upon the surface of the orifice where the
issuing liquid is to be strained, such as on the base of the spout of a tea or coffee pot.
In order to attach this detachable strainer, I provide a pin or pins, spring pressed
and passing through the crown of the strainer, such pin or pins passing through the
mouth of the orifice, which in many case may be already covered with a flat perforated
plate, as in the case of the ordinary tea and coffee pots.
The said pin or pirs are so formed that after they have passed by the pressure of
the operator through the existing perforated plate, or the mouth of the existing
orifice, the extremity of the said pin or pins will bend, drop, or expand so that, upon
the recoil of the spring pin or pins, the strainer is locked in place over the mouth of
the orifice until released by hand to remove the strainer.
This is a convenient method of attaching the extended strainer to any orifice such
as a spout in all existing tea pots, coffee pots, or vessels, without any alteration in the
pot being necessary, but it is evident that various modifications of the attaching device
may be made to suit the various forms of pots or vessels, without departing from the
principle of my invention.
FELL & WILDING,
1, Queen Victoria Street, London, E.C., Agents for the Applicant.
COMPLETE SPECIFICATION.
Improvements in Strainer Attachments for Tea and Coffee Pots or
other Vessels.
I, ARTHUR HART BOWMAN of 472 Brixton Road, in the County of Surrey,
Jeweller 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 :-
My invention relates to improvements in tea or coffee pots or other vessels, in which
infusions or decoctions are prepared, and consists in the manner of fixing, and the
construction of a strainer to such pots or vessels with a very extended surface. These
improvements are designed to provide a strainer of extended surface, and such as may
be conveniently constructed of a close meshed material, such as gauze, or perforated
metal, or earthenware, to be applied to any pot already provided with an ineffective
perforated plate, to enable the liquid from the decoction such as tea or coffee to be
drawn off clearly and without sediment, and to prevent the clogging of the spout or
outlet pipe.
Figure 1 is an elevation of a tea pot and Fig. 2 an elevation of a coffee pot fitted
with my improved strainer.
Figure 3 is an enlarged detail of the strainer in a position for insertion.
Figure 4 is a similar detail of the strainer locked in position in the pot.

page_text: To adapt my strainer to any tea or coffee pot or similar vessel already provided with
the usual flat perforated plate A at the base of the spout, I apply a gauze cap B of
sufficient diameter to cover the fixed strainer, and it is worked out into a flexible
flange so as to rest upon the inner surface of the pot. The said strainer projecting
inwards into the pot presents a much larger area than that of the ordinary device and
is much more effective in the stopping of small fragments of tea leaves or even dust
than the ordinary perforated plate strainer.
To attach the said strainer to the coffee pot so that it may be removed at will, I fit
to it a pin provided with a thumb button D and spring pressed, so that the said
pin is pressed back normally from the face of the pot on which it rests. The end of
the pin C, figure 3, is provided with a pivotted end E, which, after insertion through
the perforated plate at the base of the spout, falls down and locks up against the
inside face of the said plate by the spring reaction.
To insert this strainer, the pot should be preferably held at such an angle with the
spout downwards that the strainer is presented to the pot in a vertical position as
shown in figure 3 the central rod being pressed forward by the thumb. The central
rod C. with its pivotted piece E. is then a continuous rod and will readily enter any
hole in the perforated plate. Upon the pot being raised to a horizontal position with
the strainer in place, the pivotted end E. of the rod C. falls as shown in figure 4 and
locks behind the perforated plate. The spring pressed rod can then be released the
spring pressing the strainer with sufficient pressure against the inside face of the pot.
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 :-
The construction of an auxiliary detachable strainer affixed to a pot of ordinary
construction by means of the spring pressed locking pin C. with pivotted head E,
substantially as described.
For FELL & WILDING,
R. A Hoffmann,
1, Queen Victoria Street, London, E.C., Agents for the Applicant.