Year: 1888

page_text: Date of Application, 21st Jan., 1888
Complete Left, 15th Feb., 1888
- Complete Accepted, 16th Mar., 1888
I HARRY SALKELD Manufacturing tin plate worker of 37 Smallbrook Street
Birmingham in the County of Warwick do hereby declare the nature of this invention
to be as follows:-
--
This invention consists in the combination with a pot, of a movable strainer
constructed and used in the following manner.
I provide any ordinary metal pot in which is formed the usual opening or mouth
through which to fill the pot.
I next provide a conical shaped perforated strainer; the top or mouth of the
strainer is formed with a projecting flange.
In using my improved strainer and pot I pass the conical strainer through the
mouth of the pot,. until the flange of the strainer rests over and covers the mouth of
the pot; the strainer is made of such dimentions that when so placed inside the pot,
the bottom or small end of the conical strainer will be at some considerable distance
from the bottom of the pot.
I next put into the strainer the tea, coffee, herbs or other substance from which I
wish to extract a decoction, the hot liquid contained in the pot passes through the
perforations and coming in contact with the tea, coffee or other substance contained
in the strainer extracts therefrom the required decoction.
I am aware that perforated strainers of various shapes are made and used inside
decoction pots such strainers resting on the bottom of the pot. I do not claim
strainers so made. and used, for my improvement consists in making the strainer
conical the cone being of a round, oval or any other suitable transverse section, the
conical strainer being suspended in the pot in contradistinction to resting on the
bottom of the pot.
The pot would be provided with a suitable lid, hinged in such a position as to
cover over the mouth of the pot and also over the mouth of the strainer.
The conical strainer may be of round, oval, or other suitable transverse section.
Dated this 20th day of January 1888
ALFRED WILLIAM TURNER,
Cobden Buildings, Corporation Street, Birmingham,
Agent for the Applicant.

page_text: COMPLETE SPECIFICATION.
Improvements in Pots for Extracting Decoctions.
I, HARRY SALKELD Manufacturing Tin-plate worker of 37 Smallbrook Street
Birmingham in the County of Warwick 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 consists in the combination, with a pot, of a movable strainer,
constructed and used in the following manner.
I provide any ordinary metal pot in which is formed the usual opening or mouth
through which to fill the pot.
I next provide a conical shaped perforated strainer; the top or mouth of the
strainer is formed with a projecting flange.
In using my improved strainer and pot I pass the conical strainer through the
mouth of the pot, until the flange of the strainer rests over and covers the mouth of
the pot the strainer is made of such dimentions that when so placed inside the pot,
the bottom or small end of the conical strainer will be at some considerable distance
from the bottom of the pot.
I next put into the strainer, the tea, coffee, herbs or other substance from which
I wish to extract a decoction.
The hot liquid contained in the pot, passes through the perforations pierced in
the strainer and coming in contact with the tea, coffee, or other substance contained
in the strainer, extracts therefrom the required decoction.
I am aware that perforated strainers of various shapes are made and used inside
decoction pots, such strainers resting on the bottom of the pot; I do not claim
strainers so made and used, for my improvement consists in making the strainer
conical, the cone being of a round, oval or any other suitable transverse section, the
conical strainer being suspended in the pot in contradistinction to resting on the
bottom of the pot.
The pot would be provided with a suitable lid, hinged in such a position as to cover
over the mouth of the pot and also over the mouth of the strainer.
I will now proceed to describe with reference to the accompanying drawings the
manner in which my invention is constructed and used.
Figure 1 represents the pot in section and the strainer in elevation.
Figure 2 represents a detailed elevation of the strainer.
Figure 3 represents a plan of figure 2.
Figure 4 represents a plan of a conical strainer, the inner line shewing the
transverse configuration.
Figure 5 represents a second variation of configuration of the transverse section of
strainer.
In carrying out my invention I proceed in the following manner
I provide a pot such as is represented at a, or the pot may be of any other

page_text: I next provide the conical strainer 6 and lower it into the pot until the flange c
rests over and covers the mouth of the pot; it will therefore be apparent that the
strainer is suspended in the pot by means of the flange c.
I put into the strainer 6 the tea, coffee, herbs or other substance from which I wish
to extract a decoction.
In some cases I should pour boiling (or cool) liquid into the strainer, the liquid
would flow into the pot through the perforations in the strainer; in other cases I
should pour liquid into the pot and afterwards lower the strainer and contents into the
position indicated at figure 1: in either case the contents of the strainer would be
suspended in the liquid.
The contents of a strainer suspended in the manner hereinbefore described would
be in the best possible position to extract the required decoction.
By the use of the conical-strainer suspended in the manner hereinbefore described,
decoctions of a superior quality can be extracted.
When using tea in the strainer, the rue and aroma can be extracted and the moment
the leaves are in a state to exude tanning matter the strainer and contents can be
quickly lifted out of the pot, the pot lid closed and the invigourating contents of the
pot preserved in good condition for a considerable length of time.
The suspended strainer produces a superior decoction to that produced by a strainer
resting on the bottom of a pot for the following reason
The flat metallic bottom of a strainer bearing on the inner flat surface constituting
the bottom of the pot, holds (or draws by cappillary attraction) a film of liquid, the
imprisoned film of liquid is liable to set up a chemical action between the bottom of
the strainer and the innerside of the bottom of the pot and thereby contaminate and
deteriorate the whole of the liquid contained in the pot.
Having now particularly described and ascertained the nature of my said
invention, and in what manner the same is to be performed I declare that what I
claim is
The invention as illustrated and described, for the purpose of extracting decoctions.