IMPROVEMENTS IN FILTERS
Year: 1884

page_text: I, FRANK HOWARD LANDON of 35, Queen Victoria Street in the City of London,
Civil Engineer do hereby declare the nature of said Invention for IMPROVEMENTS
IN FILTERS, to be as follows:-
.
I provide, for purifying water or other liquids, a filter which floats on or near
the surface.
The advantages of this arrangement are that the supply is drawn off from the
stratum which, as a rule contains the least amount of impurities in suspension, and
that the purifying material continues clean and efficient a much longer time than
if all the impurities which collect at the bottom of water were admitted into it.
For a cistern filter I use a vessel of any convenient shape, one or more parts of
which contain the filtering material, and the other part or parts either act as an
air chamber or chambers, or may be filled with any light substance, to give
buoyancy to the whole. I may also make the filter itself of such light substance
that it will float without the aid of any special buoying arrangements. The water
passes into and out of the filtering material through perforations or strainers in
the filter, and to the outlet is attached a flexible tube which leads the purified
water away, either acting as a syphon, or, through a hole in the cistern, to a junction
with the ordinary service pipe. An arrangement of legs or supports is provided
to prevent the body of the filter from resting on the bottom and so bringing the
strainer into contact with the foul deposit.
:
This filter may be used in connection with any description of vessel, with or
without a tap or other means of closing it fixed on the tube through which the
purified water may be drawn off into other vessels direct for use.
For a pocket filter I use a mouthpiece attached to the tube, through which the
purified water can be drawn off by suction for drinking-A tap may be attached
to this tube.
.
'For filtering material I use any suitable purifying agent, but for preference I use
prepared animal charcoal. ·

page_text: I, FRANK HOWARD LANDON, of 35, Queen Victoria Street, in the City of London,
Civil Engineer, do hereby declare the nature of my Invention for IMPROVEMENTS
IN FILTERS and in what manner the same is to be performed, to be particularly
described and ascertained in and by the following statement:-
I provide for purifying water or other liquids, a filter which floats on or near the
surface of such liquid.
The advantages of this arrangement are (1) that the supply is drawn off from
the stratum of the liquid which, as a rule, contains the least amount of impurities
in suspension, and (2) that the purifying material continues clean and effective
a longer time than if all the impurities which generally collect at the bottom of a
cistern or other vessel containing a liquid, were admitted into it..
To carry out my Invention I use a vessel of any convenient shape, divided into
two or more compartments, one or more of which contains the filtering material,
and the other part or parts acting as an air chamber or chambers, or being filled
wholly or partially with any suitable light substance to give buoyancy to the
whole. I also may make the filter itself of such light substance that it will float
without the aid of any special buoying arrangements. The liquid passes into and
out of the filtering material through perforations or strainers in the filter, and to
the outlet is attached a tube, made of suitable flexible material, which leads the
purified liquid away, either acting as a syphon or through an orifice in the vessel
containing the liquid. An arrangement of feet, or legs, or supports is provided to
prevent the body of the filter from resting on the bottom of the vessel and so
coming into contact with the deposit there.
The filter may be used in connection with any description of vessel or receptacle,
with or without a tap or other means of closing it fixed on or in connection with
the tube or outlet.
•
For a pocket filter I use a mouthpiece attached to the tube through which the
purified liquid may be drawn off by suction. A tap may be attached to the tube.
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:
The use of a filter so constructed and arranged that it floats in the liquid to be
filtered, and having attached to it a flexible tube, in the manner hereinbefore set
forth.