A NEW OR IMPROVED TAP OR COCK FOR DRAWING OFF AND FILTERING LIQUIDS."
Year: 1858

page_text: LETTERS PATENT to Joseph Lester Hinks, of Birmingham, in the County
of Warwick, Manufacturer, for the Invention of "A NEW OR IMPROVED
TAP OR COCK FOR DRAWING OFF AND FILTERING LIQUIDS."
PROVISIONAL SPECIFICATION left by the said Joseph Lester Hinks
at the Office of the Commissioners of Patents, with his Petition, on the
11th September 1858.
I, JOSEPH LESTER HINKS, of Birmingham, in the County of Warwick,"
Manufacturer, do hereby declare the nature of the said Invention for "A NEW
OR IMPROVED TAP OR COCK FOR DRAWING OFF AND FILTERING LIQUIDS," to be as
follows:-
My said Invention consists of a tap or cock for drawing off liquids, in which
the liquid passing through the said tap or cock may be filtered or not at
pleasure, as herein explained. I make the body of the tap or cock of a dome
shape, the entrance pipe of the tap opening into the said dome at the side
thereof. At the other side of the dome and opposite to the entrance pipe an
exit pipe is placed, the said pipe being closed by a valve. At the summit of
the dome another exit pipe is situated, the last-named exit pipe being at right
angles to that first described, the said pipe being closed by a valve. I place
in the dome pieces of fabric or other suitable filtering material, the said pieces
of fabric or filtering material being stretched or otherwise supported in the
dome. When it is wished to filter the water or other liquid passing through

page_text: the tap, the first-mentioned exit pipe is closed and the other pipe opened.
The liquid passing through the tap is forced through the fabric or other
filtering material placed in the dome, and the liquid thereby filtered.
When
the liquid passing through the tap is not required to be filtered, the exit pipo
on the summit of the dome is closed, and the other pipe opened. The liquid
now passes through the tap without being filtered.
The before mentioned exit pipes are provided with conical beds or seats, in
which seats conical valves fit. By raising the said conical valves the water
ways of the pipes are opened, and the liquid escapes by the said water ways.
SPECIFICATION in pursuance of the conditions of the Letters Patent, filed
by the said Joseph Lester Hinks in the Great Seal Patent Office on
the 8th March 1859.
TO ALL TO WHOM THESE PRESENTS SHALL COME, I, JOSEPII
LESTER HINKS, of Birmingham, in the County of Warwick, Manufacturer,
send greeting.
WHEREAS Her most Excellent Majesty Queen Victoria, by Her Letters
Patent, bearing date the Eleventh day of September, in the year of our Lord
One thousand eight hundred and fifty-eight, in the twenty-second year
of Her reign, did, for Herself, Her heirs and successors, give and grant
unto me, the said Joseph Lester Hinks, Her special licence that I, the said
Joseph Lester Hinks, iny executors, 'administrators, and assigns, or such
others as I, the said Joseph Lester Hinks, 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
"A NEW OR IMPROVED TAP OR COCK FOR DRAWING OFF AND FILTERING LIQUIDS,"
upon the condition (amongst others) that I, the said Joseph Lester Hinks, 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 manner the same was to be per-
formed, 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 Joseph Lester Hinks, do hereby
declare the nature of the said Invention, and in what manner the same is to

page_text: be performed, to be particularly described and ascertained in and by the
following statement thereof, that is to say :-
My Invention consists of a tap or cock for drawing off and filtering liquids,
constructed in the manner herein-after described, and illustrated in the accom-
panying Drawing, by which said tap or cock the liquid passing through the
same may be filtered or not at pleasure.
Figure 1 of the Drawing represents a side elevation of my new or improved
tap or cock; and Figure 2 represents a vertical longitudinal section of a
portion of the same; Figure 3 represents a plan of the tap or cock; and
Figure 4 represents a horizontal section of the same. a is the entrance pipe
of the tap, opening into the bottom of the chamber b. At opposite sides of
the said chamber 6, pipes c, d, are situated, the ends c and d of the said pipes
being closed by the cocks or valves e, f, respectively as represented. The said
chamber is divided at about its middle by a disc of flannel or other suitable
filtering substance or material g, the said disc being stretched and fixed in the
position represented by the edges of the said disc being pressed upon the
shoulder h when the perforated plate i is screwed home, and the said filtering
material held firmly between the said shoulder h and plate i. In using my
new or improved tap or cock, when it is wished that the liquid passing through
the said tap or cock shall be filtered, I open the tap f, the tape remaining
closed.
The liquid entering into the lower part of the chamber 6 through the
pipe a, rises in the said chamber 6, passing through the filtering fabric or
material g into the upper part of the chamber b. From the upper part of the
said chamber the filtered liquid escapes through the pipe d, stop-cock f, and
exit pipe k. When it is wished that the liquid passing through the tap or
cock shall not be filtered, the stop-cock e is opened, the stop-cock f remaining
closed. The liquid from the supply pipe a passes direct through the pipe c
and stop-cock e to the exit pipe 1. The disc of filtering fabric or material
stretched and fixed across the chamber b may be removed from time to time,
in order to cleanse it from the foreign matters contained in its pores, or to
substitute a fresh disc. In order to remove the said filtering fabric the cap m
of the chamber bis unscrewed and removed, and then the perforated plate i
unscrewed. The filtering fabric may now be removed for cleansing or renewal.
The said filtering fabric g does not, however, require frequent cleansing, as the
unfiltered liquid drawn from the tap e washes the. under surface of the fabric g
as it issues from the supply pipe a.
The removal of the cap m and plate i
may be effected by a spanner or tool, represented in Figure 5 of the Drawing.
The part n of the said tool fitting on the square shoulder of the cap m, and

page_text: the part o of the said tool fitting in the square hole p of the plate i.
Although I have described that form of my Invention which I prefer, yet
I do not confine myself to the precise relative positions of the parts re-
presented in the Drawing.
Instead of making the pipes c and d in a line with one another, the pipe c
may be situated at a lower level, and the pipe d at a higher level than that
represented; or the said pipes c and d may be situated vertically, so that their
axes shall be coincident with the axis of the chamber b, the pipe c descending
vertically from the bottom of the chamber 6, and the pipe d ascending vertically.
from the top of the said chamber b.
I have not thought it necessary to describe the taps or valves e, f, which I
employ in the construction of my new or improved tap or cock, as the taps or
valves e, f, represented constitute no part of my Invention, and any other kind
of valve or tap may be employed instead of the valves or taps c. f.
Having now described the nature of my Invention, and the manner of
carrying the same into effect, I wish it to be understood that I do not limit
myself to the precise details herein described and represented, as the same
may be varied without departing from the nature of my Invention; but I
claim as my Invention the new or improved tap or cock for drawing off and
filtering liquids, herein-before described and illustrated in the accompanying
Drawing, that is to say, a tap or cock in which the liquid before being drawn off
is made to pass into a chamber divided by a diaphragm or partition of filtering
material, a pipe and valve being connected with each of the two parts into
which the chamber is divided by the filtering material, so that by opening
one or other of the valves, the liquid may be drawn from the said chamber
either without filtration or be made to pass through the filtering material.
In witness whereof, I, the said Joseph Lester Hinks, have hereunto
set my hand and seal, this Fifth day of March, in the year of our Lord
One thousand eight hundred and fifty-nine.
Witness,
GEORGE SHAW.
JOSEPH LESTER HINKS. (L.S.)