Year: 1886

page_text: I GEORGE TEIDEMAN of 27 Lancaster Street Borough Road in the County of
Surrey Brassfounder do hereby declare the nature of this invention to be as
follows:-
My filter tap consists of a cylindrical or other shaped chamber in which is placed
the filtering medium.
s
This chamber at one end is screwed or secured to the inlet from cistern or
supply pipe. At the other end of chamber is a tap with two valves controlling
two supplies.
:
!
The whole of the cylindrical chamber may be filled with the filtering material
but I prefer a space to be left to allow the water to have a through way when
required, so that the water may pass through and be filtered or may pass direct
through the said space to cleanse the filtering material or be drawn. off direct
without passing through the filter the valves being so constructed that the water
passes direct from the filter or from the space before described.

page_text: I GEORGE TEIDEMAN of 27 Lancaster Street, Borough Road in the County of
Surrey, Brassfounder, 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 improved filter tap is provided with a cylindrical or other shaped chamber
in which is placed the filtering medium.
The said chamber is at one end screwed or otherwise secured to the pipe from
cistern or to other supply pipe, at the other end of the said chamber is a tap with
two valves controlling two ways communicating with a single outlet.
The cylindrical or other shaped chamber is filled with the filtering material with
the exception of a small space which is left to allow the water to have a clear way
through the tap when required without passing through the filtering material, so
that by causing the water to pass through the filtering material, filtered water may
be drawn off or by causing it to pass through the aforesaid space it may be drawn
off unfiltered and the filtering material cleansed.
The valves and passages are so constructed and arranged as to cause the water
to pass through the filter or through the space before described.
And in order that my said invention may be more clearly understood and readily
carried into effect, I will proceed aided by the accompanying drawings more fully
to describe the same.
DESCRIPTION OF THE DRAWINGS.
Figure 1 is a side elevation; Figure 2 is a vertical longitudinal section, Figure 3
is an internal back end view, and Figure 4 is a horizontal section of one form in
which I construct my improved filter tap. Figures 5 and 6 are respectively an
edge view and a face view of part of the same employed for securing the filtering
material in position.
Figures 7 and 8 are respectively a horizontal section and a vertical longitudinal
section of a similar form of tap with slight modifications of the filtering portion
thereof.
Figure 9 is a side elevation Figure 10 is a vertical longitudinal section and
Figure 11 is an internal end view of another form in which I construct my
improved filter tap and Figures 12 and 13 are respectively a back view and an
edge view of the filter block thereof separately.
In all the figures like parts are marked with similar letters of reference.-
a is the body of the tap at the rear end of which is a chamber a¹ of cylindrical
or other form in which I place a block 6 of carbon or other suitable filtering
material.
The rear end of the chamber a¹ is enclosed by a cover a' which is provided
with a screw a³ by which it may be screwed to the supply pipe or the tap may
be otherwise secured to such pipe.
The tap is provided with two valves c, d, the former of which acts in combina-
tion with a seat a' and passage a³ and the latter with a seat a³ and passage a'.

page_text: с
Both the valves od communicate on their outlet side with the outlet passage as
of the tap.
In the arrangements represented at Figures 1 to 8 the handle c¹ of the valve o
is placed on the side of the tap whilst in the arrangement represented at Figures
9 to 13 it is placed in the front of the tap.
In the arrangement represented at Figures 1 to 6 the filter block b is seated on
an india rubber or other suitable packing e and is held in position by a metal
ring f formed with projections f¹ which are acted upon by the inside of the cover a³
to hold the filter block to its seat.
The spaces between these projections f¹ form passages for the unfiltered water
from the supply pipe to pass directly to the space around the filter block b whence
it can pass to the passage a' through the valve a' and away by the outlet a³.
In the arrangement shown at Figures 7 and 8 the filter block b is passed on to
a perforated pipe a fixed centrally of the chamber a¹ and communicating with the
passage a³ and such filter block 6 is held in position against the packing ring e by
a nut and packing ring g¹.
.
In this case a free passage is left at the end and around the circumference of the
filter block b to conduct the unfiltered water to the passage a7.
In the arrangement represented at Figures 9 to 13 the filter block b is cemented
in position in the chamber a¹ which latter is formed partially cylindrical with a flat
upper side which by a division 10 is separated from the passage a7.
By the use of my improved filter tap I am enabled to draw off from the same
outlet either filtered or unfiltered water by operating either the handle c¹ or d¹
respectively.
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:-
A filter tap constructed with a single outlet, two handles, two valves, suitable
passages and with a chamber provided with filtering block or material substantially
as herein shown and described and for the purpose stated.