AN IMPROVED FILTER
Year: 1885

page_text: I WILLIAM BEGG of 8 Olive Terrace Sale in the County of Chester Agent do
hereby declare the nature of my invention for AN IMPROVED FILTER to be as
follows:-
This invention relates to a construction of high pressure filter to be applied to an
ordinary supply pipe in such a way that there shall always be a certain quantity
of filtered water in reserve ready to be drawn off by a.tap.
To the end of the supply pipe I solder or otherwise fix a short screwed pipe, and I
provide a cylindrical or other convenient shaped vessel of metal, galvanized or coated
internally with zinc or enamel open at the top, and furnished with a neck; screwed
externally onto this neck is fitted a screwed cover having in the centre a short pipe
screwed internally so that it can be attached to the end of the service pipe; an india
rubber or other compressible washer being placed between the neck and the cover
so as to make a water tight joint.
In this vessel I place a cup or jar of porous unglazed porcelain or china clay, open
at the top, and having its upper edge fitting against an india rubber washer in the
inside of the cover so that all water that passes from the main through the pipe in
the centre of the screwed cover passes first into the porous cup and cannot enter
the external vessel without passing through the sides or bottom of the porous sub-
stance thereby becoming filtered.
The porous cup is not so deep as the exterior metal vessel, and is supported upon
an external flange or annular shelf in the interior thereof, the lower part below the
flange which supports the porous cup forms a chamber or reservoir sufficient to
contain the quantity of water desired to be kept in reserve and this vessel is
provided with a tap and with a suitable air valve if required.
It will be evident that as the water is filtered through the porous porcelain cup
it falls into and fills the lower chamber or reservoir from which it can at any time
be drawn as required. As soon as the reservoir becomes full the filtering ceases,
and whenever filtered water is drawn out the filtration re-commences until the
reservoir is filled and thus the apparatus combines the action of a high pressure
filter with a reserve of filtered water always ready to be drawn.
The whole apparatus may be fixed to the wall or supported upon a bracket or
shelf in any convenient position.
The screwed cover is furnished with lugs or projections so that when desired it
may be readily unscrewed; the porous earthenware cup can then be removed
cleansed by washing, and replaced, and the cover screwed on again water tight as
before.
Dated this and day of
100
GEORGE DAVIES,
Agent for the Applicant,
4, St. Aun's Square, Manchester,

page_text: I WILLIAM BECG of 8 Olive Terrace Sale in the County of Chester Agent do
hereby declare the nature of my invention for "AN IMPROVED FILTER" 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 a construction of high pressure filter to be applied to an
ordinary supply pipe in such a way that there shall always be a certain quantity
of filtered water in reserve ready to be drawn off by a tap.
The nature of my said invention and the manner in which the same may be
carried into practical effect will be readily understood on reference to the accom-
panying drawings and the following explanation thereof.
Fig. 1 is a sectional view taken vertically through my improved filter and
Figs. 2 and 3. are similar views of modifications thereof.
To the end of the supply pipe I solder or otherwise fix a short flanged pipe
screwed externally, and I provide a cylindrical or other convenient shaped vessel a, a
(see Fig. 1) of cast metal galvanized or coated internally with zinc or enamel open
at the top and furnished with a neck b, b screwed externally. Onto this neck b, b
is fitted a screwed cover c, c having in the centre a short pipe d, d screwed
internally so that it can be attached to the short screwed pipe fixed on the service
pipe as above described, an india rubber or other compressible washer c, e being
placed between the neck b, b and the cover c, c so as to make a water tight joint.
In this vessel a, a a cup or jar ff of porous unglazed earthenware or china clay
open at the top and having its upper edge fitting against the india rubber or other
washer e, e in the inside of the cover c, c so that all water that passes from the
main through the pipe d, d in the centre of the screwed cover c, c passes first into
the porous cupff and cannot enter the external vessel a, a without first passing
through the sides or bottom of the porous substance, thereby becoming filtered.
In this Fig. and in Fig. 2. the porous cup f, f is not so deep as the exterior metal
vessel a, a and is supported upon an internal flange or annular shelf
J, g in the
interior thereof, the lower part a¹, a¹ below the flange g, g which supports the
porous cup ff forms a chamber or reservoir sufficient to contain the quantity of
water desired to be kept in reserve, and the vessel a, a is to be provided with a tap
at the opening h, h and with an air valve if required.
Fig. 2 shows a slight modification of the cover c, c the cover being held down by
bolts and nuts i, i. And Fig. 3. shows a further modification wherein the neck is
dispensed with and the porous jar is made of the same height as the vessel a, a the
internal flange or shelf g, g being dispensed with and the filtration taking place
from the outside of the porous jar inwards, and in this case the porous jar may be
made in a cylindrical form as shown at f,f the lower end being made watertight
also by a second washer of india rubber e', c¹.
It will be evident that as the water is filtered through the porous porcelain cup
or jar outwards in Figs. 1 and 2 it falls into and fills the lower chamber or
reservoir a', a from which it can be at any time drawn off as required.

page_text: As soon as the reservoir becomes full the filtering ceases, and whenever filtered
water is drawn out the filtration recommences until the reservoir is filled and thus
the apparatus combines the action of a high pressure filter with a reserve of filtered
water always ready to be drawn.
In the modification shown at Fig. 3. the water enters at once into the vessel a, a
outside the porous jar f', f¹ and filters inwards, the space inside the porous jar f, ƒ
forming the reservoir.
The whole apparatus may be fixed to the wall or supported upon a bracket or
shelf in any convenient position.
The screwed cover c, c (Fig. 1) may be furnished with lugs or projections so that
when desired it may be readily unscrewed. When the lid or cover has been
removed by unscrewing it, (or the nuts i, i) the porous earthenware cup or jar can
then be removed, cleansed by washing or by firing, and replaced, and the cover can
be screwed or bolted on again water tight as before.
Having now particularly described and ascertained the nature of my said inven-
tion and in what manner the same is to be performed I declare that what
I claim is
The general novel construction and arrangement of filter as hereinbefore described
and illustrated by the drawings annexed whereby a quantity of filtered water is
always kept in reserve, and particularly I claim the adaptation to filters of this
class of an easily removable lid which when screwed or bolted on closes the mouth
of the external filtering vessel and at the same time fixes and closes watertight the
porous filtering cup or jar, so that on removing the lid the porous filtering cup or
jar can be readily removed cleansed and replaced as may be required.
TY. 1