Improvements in Filters.
Year: 1889

page_text: Date of Application, 8th May, 1889
Complete Specification Left, 7th Feb., 1890-Accepted, 15th Mar., 1890
PROVISIONAL SPECIFICATION.
Improvements in Filters.
FREDERICK ROGERS LIPSCOMBE Water Filter Manufacturer 45 Queen Victoria
Street London E.C. do hereby declare the nature of this invention to be as follows :—
The object of my invention is to improve upon my filter patented Feb. 3, 1885
and numbered 1510 and also to provide a filter accessible throughout for cleansing
and which can be fitted to any vessel having a hole pierced through it, and capable
of containing the filter.
My improved filter consists of a perforated box made of metal, earthenware, or glass
and having a shut over cover, or other kind of cover which can be fastened down
to box, the box may be partially or altogether covered with asbestos cloth. Inside the
above specified box I place a tube of metal earthenware or glass closed at top and
bottom excepting for a hole in each. A piece is cut out of the side of tube as large
as is conveniently possible.
The tube is fitted at one end with a hollow screw provided with a head or flange
and movable nuts, and so long that it will project half an inch or more. The other
end of tube is similarly fitted with a solid or hollow screw and nuts. The tube is
then covered with asbestos cloth, the hollow screw fitted & fixed to one end of
tube is then thrust through the bottom of box and made fast with a nut &
washer. The intermediate space between tube and box may be filled with granular
or powdered filtering media. The cover of box is adjusted over solid screw projecting
from top of tube and fixed by nut outside.
L
1000
FREDERICK ROGERS LIPSCOMBE.
COMPLETE SPECIFICATION.
Improvements in Filters.
FREDERICK ROGERS LIPSCOMBE 45 Queen Victoria Street London Water Filter
Manufacturer 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 :-
The object of my invention is to improve upon my filter patented Feb. 3, 1885
and numbered 1510 and also to provide a filter accessible throughout for cleansing,
and which can be fitted to any vessel having a hole pierced through it and capable of
containing the filter.
My improved filter consists of a perforated box, preferably cylindrical in form-but I
do not limit myself to this-made of metal, earthenware, glass, or other suitable
substance, and provided with a shut over cover, or other suitable cover, which can be
fastened down to box if required.
A hole is made in cover and in bottom of box. The box may be covered partially
or altogether with asbestos cloth or other suitable material. Inside the above
specified box I place a tube of earthenware, metal, glass, or other suitable material-
closed at top and bottom excepting for a hole in each. A piece is cut out of side
of tube as large as is conveniently found possible, or the tube may be perforated
with holes. The tube is fitted at one end with a hollow screw provided with a
head or flange, and movable nuts, and so long that it will project through one end
of tube half an inch or more, the other end of tube is similarly fitted with a solid
or hollow screw and movable nuts, the tube may then be covered with asbestos cloth
or other suitable material. The hollow screw fitted and fixed to one end of tube 18
thrust through bottom of box and made fast with a washer and nut outside. The

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intermediate space between tube and box may be filled with granular or powdered
filtering media The cover of box is adjusted over screw projecting from top of tube
and fixed by nut outside.
The filter constructed as specified above is ready to be fitted to any vessel provided
with a hole through which the hollow screw projecting from bottom of box can be
passed and fastened outside, and which vessel is large enough to contain filter
In addition to, or in place of the filtering media between tube and box as above
mentioned, filtering media may be placed between outside of box and sides of containing
vessel'
A modification of the above described filter may also be used, viz
The central tube may be perforated at convenient intervals and these perforations
may be enclosed with a perforated box covered if required with asbestos cloth or
other suitable material, with another and larger perforated box outside it, also fixed
to central tube, the intermediate space may be filled with filtering media. Or the
perforations in central tube may be covered with asbestos cloth or other suitable
material and perforated boxes of different sizes placed around and fixed to it, with
space between each which may be filled with filtering media, and in these cases
also as with filter first described, in addition to or in place of, the filtering media
in intermediate spaces, filtering media may be placed outside perforated box, between
it and sides of containing vessel.
A reference to the drawings will explain, where-
A is a perforated box having a shut over cover, with holes pierced through cover
& bottom of box.
B is an inner perforated tube.
B shews tube with screws and nuts attached.
C. The filter fitted to a containing vessel.
D shews the modification of the same plan upon central tube.
Having now particularly described and ascertained the nature of my said invention,
and in what manner the same is to be performed, what I claim 18-
First. A filter which is accessible throughout for cleansing, which is very durable,
and which can be fitted to any vessel having a hole pierced through it, and capable of
containing the filter.
Secondly. The combination of the various parts forming my improved filter as
herein described and shewn in the annexed drawings.
'Dated this 7th day of February 1890.