IMPROVEMENTS IN FILTERS FOR DOMESTIC PURPOSES
Year: 1886

page_text: Date of Application, 23rd July, 1886.
Complete Left, 21st Mar., 1887.
Complete Accepted, 22nd July, 1887.
I CAREY ANDERSON CLAPHAM, of 23 Wentworth Street, Bradford in the County of
York, Chemist, do hereby declare the nature of my invention for IMPROVEMENTS IN
FILTERS FOR DOMESTIC PURPOSES, to be as follows:-
This invention relates to filters for domestic use, and its object is to provide a filter
in which granulated carbon or other suitable material may be employed as a filtering
medium, and such filtering medium may be readily changed, or removed, and cleansed
from impurities when desirable.
For this purpose I employ a case or vessel made of noncorrosive metal, or other
suitable material, provided with one or more perforated partitions for containing the
granulated carbon, or other suitable filtering medium. The said case or vessel is
formed with a lid in which is an opening for admitting the liquid to be filtered and a
similar opening is formed at the bottom of the case or vessel to allow the filtered liquid
to pass from the case or vessel. The said lid is screwed or attached to the case in a
suitable manner to form a watertight joint. A perforated partition is placed over the
opening in the bottom of the case, and such case is filled with granulated carbon, and
a similar perforated partition is placed on the top of such granulated carbon and the
lid is screwed to the case, thus forming a convenient filtering medium which may be
readily changed or removed, from the case or vessel, and be cleansed by washing when
desirable.
The case or vessel is preferable so filled with granulated carbon that the act of
securing the lid compresses such carbon, thereby causing it to be more compact and
stable. I may employ granulated carbon of different degrees of fineness arranged in
layers or strata, and preferably separated by perforated partitions.

page_text: I may employ other suitable filtering materials such as sponge, wadding, separate or
in combination with such granulated carbon.
The said case or vessel may be conveniently attached to any suitable water tap, or
pipe, by having a suitable union or connection formed on the lid of the case or vessel
for securing such case or vessel to the tap or pipe. When the filter is employed in this
manner if there is any degree of pressure in the tap or pipe the flow of liquid through
such filter is materially increased.

page_text: I CAREY ANDERSON CLAPHAM late of 23 Wentworth Street Bradford in the
County of York but now of 61 De Grey Street in Bradford aforesaid Manufacturing
Chemist 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 relates to Filters for domestic or other purposes and its object is to
provide a Filter in which granulated Carbon or other suitable filtering medium may be
employed and also to provide for such filtering medium being readily changed or
renewed and cleansed from impurities when desirable. For this purpose I employ a
case or vessel A made of noncorrosive metal or other suitable material provided with
one or more compartments F separated by perforated partitions D and E for holding
the granulated carbon or other filtering medium. The said case or vessel A is fitted
with a lid B in which is an opening G for admitting the liquid to be filtered and a
similar opening H is formed at the bottom of the case to allow the filtered liquid to
pass therefrom. The said lid B is screwed or attached to the case A in a suitable
manner to form a watertight joint C and J. A perforated partition E is placed over
the opening in the bottom of the case and such case is filled with granulated carbon or
other suitable filtering medium, then a similar perforated partition D is placed on the
top of such medium and the lid B is screwed to the case A thus forming a convenient.
filtering appliance the medium of which may be readily removed from the case and
cleansed when desirable.
The said case or vessel A is preferably so filled with granulated carbon that the act
of screwing the lid B compresses such carbon thereby causing it to be more compact
and stable.
I may employ granulated carbon of different degrees of fineness arranged in layers
or strata and preferably separated by perforated partitions I may also employ other
suitable filtering materials or mediums such as sponge, wadding, separate or in com-
bination with such granulated carbon.
The said case or vessel A may be attached to any ordinary water tap or pipe by
having a suitable union or connection attached thereto for the purpose of securing such
case or vessel to the said Tap or pipe. When the Filter is employed in this manner if
there is any degree of pressure in the tap or pipe the flow of liquid through the Filter
is materially increased.

page_text: Preferably I so construct the said case or vessel A that the orifices at the top G. and
bottom H are of equal size so that the filter may be readily reversed and used with
either end uppermost attached to the tap or pipe.
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 :-
First. The instantaneous filtration of water in unlimited quantities for domestic
and other purposes by the application of the Filter in the manner hereinbefore
described.
Second. The compression of the filtering material in the manner hereinbefore set
forth..
Third. The reversibility of the Filter.
Fourth. The readiness with which the filtering material can be renewed or
cleansed.
CAREY ANDERSON CLAPHAM.