A Fortable Syphon Filter.
Year: 1897

page_text: Date of Application, 19th July, 1897
Complete Specification Left, 13th Apr., 1898-Accepted, 14th May, 1898
A Fortable Syphon Filter.
CHARLES TYRRELL GILES, 2, Hare Court, Temple, E.C., Barrister and M.P., do
hereby declare the nature of this invention to be as follows:
The portable syphon filter is in the shape of a syphon, the part containing the
filtering material being a tube or other shaped vessel of metal earthenware or
glass (hereinafter called the filtering chamber) with a hole at top fitted with an
airtight stopper or cork. Below the hole a pipe is attached bent upwards and
downwards so as to complete the syphon and such up the liquid to be filtered.
The filtering chamber is fitted with a moveable bottom so perforated as to restrain
the filtering material but permit liquid to pass. The filter is put into work by
removing the stopper and filling or partly filling the chamber with liquid and then
replacing the stopper and arranging the filter on the edge of the vessel containing
the liquid to be filtered so that the pipe is in the liquid. The filter then acts
as a syphon. The filter may be made of fireproof material and dried & purified by
heat, removing, the stopper if necessary.
A Fortable by pron Filter.
I, CHARLES TYRRELL GILES, M.P., of 2, Hare Court, Temple, in the City of
London, Barrister-at-Law, 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 invention has for its object to provide a filter which occupies little space
whereby it is rendered portable, which will be supplied automatically from an
ordinary vessel whereby the constant refilling of the same is unnecessary and which
can be readily purified, and to these ends my invention consists in the combination
of the filtering vessel with a syphon as hereinafter described.
In the accompanying drawing,
Figure 1 is a sectional elevation shewing my improved filter as in use; and
Figure 2 is a sectional view illustrating a modification.
a is the filtering vessel which is made of any suitable material but preferably
of a material such as earthenware or metal which will not be injured by being.
subjected to heat for purifying it, such as say the temperature of boiling water.
TD 077

page_text: This vessel a is provided at the top with an aperture U adapted to be hermetically
closed, for instance by means of a screw-stopper c.
d is the syphon which is attached to the vessel a by any convenient means
and which may be made of flexible material such as india-rubber, or of metal
or other suitable material to which heat can be applied for cleansing it. As shewn
in Figure 1 the syphon is represented as being fixed to a nozzle e upon the side of
the filtering chamber whilst in Figure 2 it is represented as being attached to
the stopper c which closes the filtering vessel. At the bottom of the said filtering
vessel is a hole f for the escape of the filtered water.
g indicates the filtering medium such as powdered charcoal and h is a perforated
plate upon which the said material rests and which will prevent the said filtering
material from clogging up the discharge aperture f. To permit of introducing
this perforated plate h into the filtering vessel the upper end or the lower end
of the latter is made removable; as shewn in Figure 1 of the drawing the
lower end of the vessel is represented as being detachably connected to the sides
of the same by screw-threads.
It will be obvious that instead of using a stopper which enters the aperture
at the top of the filtering vessel I may use a stopper which engages with the
outside of the said vessel or any other suitable form of stopper may be used.
With the construction herein before described it will be noticed that the filtering
vessel practically forms an enlargement upon the long leg of the syphon so that
when the filter is placed with the short leg of the syphon in a vessel filled with
water and started, the flow of water through the filtering material will be main-
tained without the necessity for constantly filling the filtering vessel the filter
continuing to work as long as the supply of water in the reservoir is maintained.
To start the filter the stopper c is removed and the filtering chamber is wholly or
partially filled with liquid; the stopper being then replaced the flow of water
through the syphon d will commence.
It will be understood that for transport the syphon tube d may be detached
from the filtering vessel a and when it is required to purify the apparatus it will
only be necessary to put the same into boiling water."
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:
1. In a filter the combination of a filtering vessel provided with an aperture
for filling the same to start the filter and of a syphon tube attached designed to
supply the filtering vessel with liquid, substantially as described.
2. The manufacture and use of filters substantially as herein before described
and illustrated in the accompanying drawing.
Datad the 19th dow of tu 1600
G. F. REDFERN & Co.,
4, South Street, Finsbury, London, Agents for the Applicant.

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