IMPROVEMENTS IN APPARATUS FOR STRAINING OR FILTERING LIQUIDS." APPARATUS FOR STRAINING OR FILTERING LIQUIDS
Year: 1872

page_text: LETTERS PATENT to Alfred Cresswell, of Birmingham, in the County
of Warwick, Builder, for the Invention of "IMPROVEMENTS IN
APPARATUS FOR STRAINING OR FILTERING LIQUIDS."
APPARATUS FOR STRAINING OR FILTERING LIQUIDS."
PROVISIONAL SPECIFICATION left by the said Alfred Cresswell at the
Office of the Commissioners of Patents, with his Petition, on the
9th February 1872.
t
I, ALFRED CRESSWELL, of Birmingham, in the County of Warwick,
Builder, do hereby declare the nature of the said Invention for "Iм-
PROVEMENTS IN APPARATUS FOR STRAINING. OR FÍLTERING LIQUIDS," to be as
follows:-
This. Invention consists of a conical frame or colander whose sides
describe an angle of about sixty degrees, so as to receive a sheet of
filtering paper folded into a conical bag. The apex of this frame or
colander is surrounded by a collar pierced at intervals to allow of the

page_text: flow of the fluid through it. This conical frame or colander is fixed
within the bell mouth of a funnel, the pierced collar being near the
bottom of the bell and communicating with the tube of the funnel.
The action is as follows:-Wine or other fluid being poured into
the cup formed by the filtering paper within the conical frame or
colander, passes through the paper and is received by the bell mouth
of the funnel, whence it passes through the pierced collar into the
tube of the funnel, and thence into the decanter or other receptacle
in a perfectly clear state free from sediment of any kind, which is
retained in the bag of filtering paper.
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The bag may be filled with the liquid and left to strain by itself,
requiring no attention or admission of air below the strainer, as by this
arrangement of the parts it is self-acting.
SPECIFICATION in pursuance of the conditions of the Letters Patent,
filed by the said Alfred Cresswell in the Great Seal Patent Office
on the 7th August 1872.
•
TO ALL TO WHOM THESE PRESENTS SHALL COME, I, ALFRED
CRESSWELL, of Birmingham, in the County of Warwick, Builder, send
greeting.
WHEREAS Her most Excellent Majesty Queen Victoria, by Her
Letters Patent, bearing date the Ninth day of February, in the year
of our Lord One thousand eight hundred and seventy-two, in the
thirty-fifth year of Her reign, did, for Herself, Her heirs and suc-
cessors, give and grant unto me, the said Alfred Cresswell, Her
special license that I, the said Alfred Cresswell, my executors,
administrators, and assigns, or such others as I, the said Alfred
Cresswell, my executors, administrators, and assigns, should at any
time agree with, and no others, from time to time and at all times
thereafter during the term therein expressed, should and lawfully
might make, use, exercise, and vend, within the United Kingdom of
Great Britain and Ireland, the Channel Islands, and Isle of Man, an
Invention for "IMPROVEMENTS IN APPARATUS FOR STRAINING OR FILTERING
LIQUIDS," upon the condition (amongst others) that I, the said Alfred

page_text: Cresswell, my executors or administrators, by an instrument in writing
under my, or their, or one of their hands and seals; should particularly.
describe and ascertain the nature of the said Invention, and in what
nanner the same was to be performed, and cause the same to be filed
n the Great Seal Patent Office within six calendar months next and
mmediately after the date of the said Letters Patent.
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presswell, my executors or austrators, by an instrument in writing
under my, or their, or one of their hands and seals; should particularly.
describe and ascertain the nature of the said Invention, and in what
manner the same was to be performed, and cause the same to be filed
in the Great Seal Patent Office within six calendar months next and
immediately after the date of the said Letters Patent.
NOW KNOW YE, that I, the said Alfred Cresswell, do hereby declare
the nature of my said Invention, and in what manner the same is to
be performed, to be particularly described and ascertained in and by the
following statement, that is to say :—
The precise nature and object of my improvements in apparatus for
straining or filtering liquids will be better understood by referring to
the accompanying Drawings, and to the letters and figures marked
thereon.
Figure 1 is a side elevation; Figure 2, a plan as seen from above;
and Figure 3, a section of the improved apparatus, which consists of a
conical frame or colander formed by a top ring (a) and side rods (6),
which describe an angle of 60 degrees or thereabouts vertically from
the ring (a) to the apex of the frame, and so as to receive a sheet of
filtering paper folded into a conical bag. The apex of this frame or
colander is surrounded by a collar (c) pierced at intervals with holes (c¹),
as shewn more clearly in the sectional plan Figure 4, on the line A, B,
of Figures 1 and 3; these piercings or holes (c¹) are for the purpose of
allowing the filtered liquid to flow through, as hereafter described.
The conical frame or colander is secured within the bell mouth (d)
of a funnel (e), the pierced collar (c) being near the bottom of the
bell mouth (d), as shewn in the section thereof Figure 3, and com-
municating with the tube of the funnel (e).
The action of the apparatus is as follows:-Wine or other fluid
being poured into the cup formed by the filtering paper within the
conical frame or colander, passes through the paper and is received
by the bell mouth (d) of the funnel (e), whence it passes through
the holes (c¹) in the pierced collar into the tube or funnel (e), and
thence into the decanter or other receptacle in a perfectly clear state
and free from sediment of any kind, which is retained in the bag of
filtering paper.

page_text: The bag may be filled with the liquid and left to strain by itself;
requiring no attention or admission of air below the strainer, as by the
arrangement of the parts as herein described the apparatus is self-acting.
Having thus described the nature and object of my said Invention,
and the manner of carrying the same into effect, I claim, without
confining myself to these precise details, the improvements in appa-
ratus for straining or filtering liquids substantially in manner as herein
more fully set forth and specified.
In witness whereof, I, the said Alfred Cresswell, have hereunto
set my hand and seal, this Sixth day of August, in the year
of our Lord One thousand eight hundred and seventy-two.
ALFRED CRESSWELL. (L.S.)