Improvements in Filtering Apparatus.
Year: 1895

page_text: PROVISIONAL SIFOLD KODEKA..
Improvements in Filtering Apparatus.
-I- ALFRED CABANE of Adge-Hérault in the Republic of France Merchant
do hereby declare, the nature of this invention to be as follows:-
This invention has for its object to provide a filter capable of working with or
without pressure; and without using woven material or felt, and consists of a
cylindrical body which is hermetically closed by a cover having a central union
fitted to receive a pipe for filtering larger quantities or a funnel, for the smaller
ones. This cylindrical body. carries inside,a filter,sleeve formed of reversed cones
of metal gauze, and is. closed by a double plate one part of which is of perforated
sheet metal and the other of metal-gauze; and it also carries a distributer of liquid
and filter materials arranged underneath the cover of the apparatus..
For filtering under pressure and consequently for large quantities, our filter
consists of a cylindrical body, closed at its bottom and provided with a delivery
cock. The cylinder has inside. it a. circular .support on which an india rubber
packing ring is arranged, intended to join. a. filter. sleeve or backet..with.reversed
cones of metal-gauze, used for filtering without woven, material.or ordinary
filtering-bag
.
The body or casing is closed at the top by a cover which is connected to a supply
cistern or other source, and under which is fixed a distributer of perforated,sheet
metal for the purpose of causing the filtering material, mixed, with the liquid, to
fall uniformly upon the. whole surface, of the said.sleeve.
EL
Instead of the beforementioned sleeve a double plate may be used formed of two
hoops with crossbars, the bottom part being provided with a plate of perforated
sheet metal the holes of which are very narrow, and the top part having a plate, of
metal gauze.:
In order to facilitate, the delivery of smaller quantities of filtered liquid into
receptacles having narrow necks. we apply a teat, on the delivery cock, joining: both
by nut and screw. This teat is provided with air channels its discharging diameter
Being thereby sufficiently reduced.
Däted this 18th day of Eebruary 1895.
WHEATLEY & MACKENZIE,
40 Chancery Lane, London, W.C., Agents.
COMPLETE SPECIFICATION.
✓ Improvements in Filtering Apparatus:
.: I ALFRED: GABANE, of Adge Hérault, in the Republic of France, 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:-
This invention relates to a filtering apparatus, which, as compared with the
apparatus heretofore used, possesses the advantage of working with or without
pressure, and filtering without the use of felt or woven fabric from a centilitre to

page_text: the largest quantities or liquids, such as water; coffee, beer, ordinary wines, wines
of liqueurs and quinquina, syrups, alcohols, perfumes or any non corrosive liquids,
according as use is made of paper paste, asbestos powder or sheets of special filter
paper.
In order that my invention may be clearly understood I have represented it by
way of example in the accompanying drawing.
Fig. 1 shows an elevation of the apparatus.
Fig. 2 is a vertical section. of the same.
Fig. 3 is a plan of the sleeve shown in section, Fig. 2.
Fig. 4 represents a section-and plan of a disc having several šleeves.
Fig. 5 is a section of a coupling nut for filtering under pressure.
Fig. 6 shows a plan of 'the disc for distributing the liquid.
Fig. 7 is a vertical section and plan of the double filter disc designed for the
filtration of small quantities.
Fig. 8 are similar views of a modification of the disc shown in Fig. 7.
Fige 9 and 10 represent vertical sections of two modified arrangements: of the
filter body shown in Figs. 1 and 2.
For filtering under pressure and consequently large quantities my filter consists
of a cylindrical body A closed at its bottom and provided with a delivery
cock U
:
The cylinder has interiorly a circular support D upon which is arranged-an
india rubber ring g designed to make a joint between the support and a filtering
sleeve having reversed cones made of wire gauze. The sleeve is fixed upon à
-metallic-crown-strengthened: by cross bars which secure the concs and serve
at the same time as a point of support for a thumb nut c screwed on the rod C.
The rod extends from the bottom of the receptacle and traverses the socketse
made in one piece with the sleeve and cross bars. The receptacle A is closed at its
upper part by a cover Jhaving at its centre a union provided with exteriorscrow
threads for receiving the coupling nut & shown in Fig 5 to which is fitted a pipe
establisliing communication. between the filter and any-réservoir..
IM!
The cover Jis let into a flange and bears upon an india rubber ring l.forming
tan hermetic joint under the pressure of the ints m which act upon bolts secured to
the flange K. Below the cover is fixed; by a bayonet joint, a distributing disc H
made of perforated metal and having for its object to compel the filtering materials
mixed with the liquid to fall regularly upon the whole surface of the sleeve For
that of the double disc S.
We-
1.In order to filter a small quantity of liquid without pressure, the coupling nut k,
Fig 5, is removed and replaced by the funnel L having an air tube Msuch as is
represented in Figs. 1 and 2; then a screw plug which closed the air tube N
is unscrewed in order to replace it by the tube O serving as a prolongation: of the
said-tube.
The sleeve being removed, it is replaced by the double disc S, Fig. 7 formed of
two crowns provided with crossbars and separated by an indiarubber rings; the
lower part of this disc is formed of a perforated plate vand the upper part is formed
of a wire gauze between which is placed a sheet of filter paper; or on the top is
poured the filtering material mixed with the liquid as is the case with the reversed
cones, this depending on the operation to be effected.
The two parts forming the disc. S are connected at the centre by two telescopic
tubes t and at their circumference by fastening bolts u.
In order to facilitate the passage of small quantities of filtered liquid into
receptacles having narrow necks; Insecure to the cock U, by means of a screw
thread, a nozzle V, Big:-1 provided with air channels and having its orifice made of
a sufficiently small diameter.
As shown in Fig. 4 of the accompanying drawing the sleeve for filtering large
quantities may be multiple, in which case the support D is replaced by a plate. Di
pierced with as many holes as there are sleeves F namely 7 in the drawing. The
holes are bevelled to directly receive the crowns f¹ of the sleeves, these crowns
2

page_text: being likewise bevelled and resting with their own weight upon the plate D¹.
Cross bars are secured to the crowns in order to facilitate the manipulation
of the same.
In the arrangement shown in Fig. 4, and also in the arrangement with a single
sleeve shown in Figs. 2 and 9, the central rod C may be dispensed with, so that then
only the central tube e remains, which is secured to the sleeve, and serves as a point
of support for the crossbars f. The single sleeve may also be arranged with a
bevelled crown and simply bear upon a circular support which is likewise bevelled
without the use of india rubber rings.
For-filtering_small quantities I may also simplify the double disc shown in
Fig. 7, employing only one disc formed of a crown with a crossbar S' and a wire
gauze Fig. 8.
Fig. 10 shows a removable support D2 designed to receive any one of the before-
mentioned discs; it is held by a cylindrical body Z whose upper edges are bent
round and extend below the india rubber ring which ensures tightness between the
body A and the cover. In this figure I show the arrangement of the air tube N
which after traversing the upper edge of the body A. and the ring 1 terminates in
the interior of the cylinder in a nut Y; we have also shown a cock V' screwed
into a bent tube V2 fixed to the bottom of the apparatus.
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 :-
:
1. A filtering apparatus, operating with or without pressure, and without a filter
of woven fabric or felt, characterised by a cylindrical body closed by a cover,
making an hermetic joint, with a central union receiving either a pipe for filtering
large quantities, or a funnel for small quantities, this cylindrical body carrying
interiorly a sleeve with reversed cones of wire gauze or a double disc of perforated
sheet metal and wire gauze, and a distributor of liquid and filtering materials which
is arranged below the cover.
2. The arrangement and construction of filtering apparatus substantially as
described with reference to the drawings hereunto annexed.
Dated this 18th day of November 1895.
WHEATLEY & MACKENZIE,
40 Chancery Lane, London, W.C., Agents.