Improvements in Filters, suitable for Wines, Spirits, or other Liquors.
Year: 1896

page_text: Date of Application, 20th Feb., 1896
Complete Specification Left, 25th Aug., 1896-Accepted, 21st Nov., 1896
PROVISIONAL SPECIFICATION.
Improvements in Filters, suitable for Wines, Spirits, or other
Liquors.
I, RICHARD RENDLE, of Cintra, Woodridings, Pinner, in the County of
Middlesex, Wine Merchant, do hereby declare the nature of this invention to be
as follows:-
My invention relates to filters especially adapted to the filtration of wines,
spirits, or other liquors, and consists of an improved arrangement of parts, whereby
a rapid filtration may be obtained without the use of filtering cloths, and large
flat filtering surfaces may be arranged in a small compass, and thus time in the
operation of filtering, and liquor, may be saved.
My filter can be used either as an open filter or as an hermetically closed filter
with sides extended or with a funnel for starting and then attached to a liquor
supply under pressure such as from a cask.
To carry my invention into effect, within a suitable case which may be
cylindrical or of other convenient shape I apply one or more filtering devices each
consisting of a.chamber formed by a flat or slightly convex finely meshed metallic
sieve connected at its periphery and centre by soldering or otherwise to a concave
metallic disc the chamber between being formed by the distance inside the
periphery between the sieve and plate discs.
The said discs are screwed or otherwise attached to a central tube which is
perforated with holes to admit the passage of the filtered liquor that has passed
through the filtering sieves and with other holes to allow the escape of air.
The said central tube may be provided with male and female socket joints at
either end so that a series of such filtering chambers may be connected up closely
together within an external case, all communicating with the said internal tube or
series of tubes.
To effect a perfect filtration of the liquor a filtering medium of any suitable
kind, but preferably powdered asbestos, is mixed thoroughly with the first charge
of liquor and is deposited upon the sieves of the filtering chambers. The first
liquor passed through the filter is returned thereto until the products runs bright,-
when the filtering bed is set and of sufficient thickness.
The upper filtering chamber in particular or others if required may be protected
from the rush or pouring of the liquor by a disc shield distributing the rush of
liquor to the circumference of the containing case.
It is obvious that a case so fitted with one or a series of filter chambers about
a central jointed pipe may be used either as an open filter or as an hermetically
closed pressure filter by closing the top by, a suitable cover.
The filtered liquor may either pass upwards through the central tube or
downwards through the bottom of the filter according to whether it is arranged as
in open or pressure filter and according to the external exit arrangements.
Dated this 20th day of February 1896
FELL & JAMES,
1 Queen Victoria Street, London, E.C., Agents for the Applicant

page_text: Improvements in Filters, suitable for Wines, Spirits, or other
Liquors.
I, RICHARD RENDLE, of Cintra, Woodridings, Pinner, in the County of
Middlesex, Wine Merchant, 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 relates to filters especially adapted to the filtration of wines,
spirits or other liquors, and consists of an improved arrangement of parts, whereby
a rapid filtration may be obtained, without the use of filtering cloths, and large
flat filtering surfaces may be arranged in a small compass, and thus time in the
operation of filtering and liquor may be saved.
My filter can be used either as an open filter, or as an hermetically closed filter
attached to a liquor supply under pressure such as from a cask.
To carry my invention into effect, within a suitable case, which may be
cylindrical, or of other convenient shape, I apply one or more filtering devices,
each consisting of a chamber formed by a flat, or slightly convex, finely meshed
metallic sieve, connected at its periphery and centre by soldering or otherwise to a
concave metallic disc the chamber between being formed by the distance inside the
periphery between the sieve and plate discs.
The said discs are screwed or otherwise attached to a central tube which is
perforated with holes extending the whole depth of the cavity of the disc to admit
the passage of the filtered liquor that has passed through the filtering sieves and to
allow the escape of air from under the wire of the sieves.
The said central tube may be provided with male and female socket joints, at
either end, so that a series of such filtering chambers may be connected up closely
together, within an external case, all communicating with the said internal tube, or
with a series of tubes, which may be applied as separate liquid or air outlets to
any part of each disc.
To effect a perfect filtration of the liquor, a filtering medium of any suitable
kind, but preferably powdered asbestos, is mixed thoroughly with the first charge
of liquor and is deposited upon the sieves of the filtering chambers. The first
liquor passed through the filter is returned thereto until the product runs bright,
when the filtering bed is set and of sufficient thickness.
The upper filtering chamber is protected from the rush or pouring of the liquor
by a disc shield distributing the rush of liquor to the circumference of the
containing case.
It is obvious that a case so fitted with one or a series of filter chambers about
a central jointed pipe may be used either as an open filter, or as an hermetically
closed pressure filter, by closing the top by a suitable cover.
The filtered liquor may either pass upwards through the central tube or
downwards through the bottom of the filter, according to whether it is arranged as
an open or pressure filter, and according to the external exit arrangements.
And in order that my invention may be the better understood I now proceed to
describe the same in reference to the drawings hereunto annexed and to the letters
and figures marked thereon.
Fig. 1 is a sectional elevation of a convenient form of my filtering frame.
Fig. 2 is a sectional elevation of a series of ny filtering frames fitted together
with liquid inlet and outlets and air pipe in a closed casing for filtration under
pressure.

page_text: The essence of my filtering frame as a device is that the filtering service A
shall in use, lie flat, or horizontal, or slightly convex, and shall be formed of a.
suitable material, such as wire gauze, adapted to support a finely powdered filtering
medium thereon, where it rests securely by its own weight, and will not scale or
fall off in use, even after accumulation of dirt thereon, the entering liquid to be
filtered being prevented from disturbing the said medium by a shield B, Fig. 2.
It is obvious to fulfil the essence of my invention, that the lower part C of my
filtering chamber receiving the filtered liquid, through the mesh, must be a non-
perforated or non-filtering surface, as any filtering medium deposited on the under
face of the filtering chamber, would tend to fall from the supporting mesh and
interfere with the desired filtering action of my filter, as the liquid would pass
unfiltered through the open mesh in preference to passing through the mesh covered
by filtering medium.
The filtering frames, constructed on this principle, may be connected to each.
other in series by pipes in any convenient manner and from any convenient part of
the frames, an air exit being provided from the interior of the frame, and the
external form of the filtering frame may be round, square or of any other-
convenient shape.
The liquid outlets may be all taken separately from each filtering frame through
the case and the air outlets similarly from the highest part of each frame.
Preferably, however, I make my filtering frames circular in shape as shewn,.
and fit a central perforated tube D terminated with a female screw thread E, at
one side, and a male screwed nozzle F, at the other, fitting into one another, so
that the frames can be conveniently united in series in an external case G as shown
in Fig. 2.
The lowest of such filtering chambers H may form the bottom of the filtering
case and an exit pipe K for the filtered liquid may be attached thereto. The said
exit pipe may have a two way cock L for alternative supply of the filtered liquid
in different directions.
To the uppermost filtering frame I attach a pipe M passing by an hermetically
closed gland N through the cover O, if the filter case is closed for filtration under
pressure.
This pipe serves as an air-pipe when charging the filter or during use as an.
open filter, but when filtering under pressure this vertical pipe M may form an.
alternative exit for the filtered liquid.
I apply a shield B to the said pipe M to divert the liquid entering through the
pipe P from falling upon the filtered medium lying on the horizontal meshes A of
my filtering frames, the liquid entering quietly from the periphery of the frames.
It is obvious that, an enormous filtering surface, by using frames of my
construction, can be inserted very compactly, into an enclosing case, and that
filtration can be relied on to proceed regularly and efficiently without disturbance.
of the filtering medium.
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:-
'
1st. A filtering frame or chamber in which the supporting mesh for the filtering
medium, is arranged horizontally or so nearly so as to support a filtering medium
by gravitation thereon, substantially as described.
2nd. In a filtering frame or chamber the combination with a horizontal mesh on
the upper face of an under metallic dish and a central perforated tube having
screwed male and female sockets to enable one frame to make joint with another,.
substantially as described.
3rd. The combination with an external case, and inlet and outlet liquid- and
air-tubes, of a series of filtering frames having upper horizontal meshes.
supporting a filtering medium by gravitation, and under metallic dishes, forming

page_text: a series of filtering frames jointed together, substantially as described and
illustrated in Fig. 2.
Dated this 24th day of August 1896.
FELL & JAMES,
1 Queen Victoria Street, London, E.C., Agents for the Applicant.