Year: 1888

page_text: 1, HENRY HARINGTON LEIGH, Fel. Inst. P.A., Assoc. M. Inst. C.E., practising as
Phillips & Leigh, of No. 22, Southampton Buildings, Chancery Lane, in the County
of Middlesex, Engineer & Patent Agent, 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 an improved construction of filtering apparatus adapted to
the filtration of wines as well as of other liquids.
In order that the said invention, and the means by which it is to be carried into
practical effect may be thoroughly understood, I will now describe the same in detail
referring in so doing to the accompanying drawings which are to be taken as part of
this specification, and read therewith.
Fig. 1 is a plan of the apparatus after removal of the cover, shewing a filtering
pocket in position.
Fig. 2 is a sectional elevation taken on the line of Fig. 1, but on a larger
scale.
Fig. 3 is a sectional plan, taken on the line y-y of Fig. 2, of the central part of
the apparatus.
Fig. 4 is a longitudinal elevation, on an enlarged scale, of a corrugated grating,
two cloth pockets, and two perforated rings, shewing the means by which the pockets
are gripped between the rings.
A is a receiver formed of two timber frames a, a¹, and copper plates b, b', the latter
tinned on their inner surfaces and fixed by wood screws, c, c, to the frames. The two
frames are held together by bolts, d, which press them firmly one against the other,
the tightness of the joint being further assured by a rubber packing e.
B is a perforated cylinder in tinned cast, or wrought, iron, strongly soldered or
brazed to the base plate h of the receiver. It consists of a chamber f having webs
radiating from it. The base plate h extends beyond the extremities of the webs g.
Dice i
•

page_text: lower part is perforated with a number of holes i.
The tightening flange C screws into the chamber f. This flange has a strong
hexagon collar formed upon it to facilitate the act of screwing it home by means of
a wrench. The said collar is screwed to receive a copper cock D, having three
ways K, K, K". The remaining ways K', K" are screwed to receive unions.
E, E are rings of white metal; and e, e, rectangular holes formed therein. Each of
these rings projects centrally into a pocket F, between two cloths m, m.
The filtering pockets F are made of twilled cotton cloth, doubled and sewn very
strongly along every seam. Each has a central circular opening of the same
internal diameter as that of a ring E.
G. G are corrugated galvanized wire gratings of the same external dimensions as
the pockets.
They have central circular openings formed in them sufficiently large to receive the
rings E.
The depth of a corrugation is equal to the thickness of a ring.
H, H are cocks provided for the purpose of drawing off the liquor in the
receiver A.
The apparatus described above is erected in the following manner.
The two frames a, a¹ being detached, the first operation is to place a grating G
upon the bottom plate 6 of the frame.a' upon which plate the cylinder B will rest.
After a ring E has been placed between the two cloths m, m of a pocket F in such
a way that the edges of the central circular openings in the said cloths coincide with
the inner face of the ring, the said pocket is laid within the frame a upon the bottom
grating G. The cylinder Bis at the same time.set up within the ring E, the projec-
tions of the webs g radiating from the said cylinder bringing them in touch with the
inner face of the ring.
A second grating & is next placed upon the first placeit (that is the last mentioned)
pocket F; and then a second pocket with its ring are laid in the same way as were
the first pocket and ring. In this way the laying of gratings pockets and rings
proceeded with, until as many members as it is intended the apparatus shall consist
of, are in position. Fig..2.illustrates the use of .7.filter-members."
A grating is laid on the top, the second frame A placed in position, and the bolts a
screwed up, until the joint between the frames is tight.
The part C is fixed next, its flange being thereby brought to bear upon an iron ring'I
of the same internal diameter as a ring 'E, and which is strongly brazed or otherwise
joined to the top copper plate b.
As the nose of the flange C'is screwed down, the rings:E are, in consequence of
the pliability of the copper plates, closed towards each other.
The apparatus is now ready for use as soon as the cock Dihas been:fixed.
The method of working it is conducted as follows:
'The cock D is coupled by the nozzle K¹ to a rubber tube adapted to establish
communication with any vessel charged with the liquor to be filtered, and standing
at a 'higher level than that of the apparatus.
When the cock is opened, the liquor flows into the chamber f, and out of it through
the 'holes and l'into the pockets (the two cloths of which touch each other) where-
upon the pockets become distended against the gratings G. There are, therefore,
provided, by the distinctive construction described above, a large number of passages
along which the liquor flows away into the empty spaces p, p provided around .the
pockets whence it is drawn off through the cocks H.
L
The process of filtration will be conducted free of all atmospheric presence, for when
the air has been once expelled through the controllable openings Riprovided at each
angle of the receiver-cover, no more air can then enter, inasmuch as the apparatus.is
full of liquor.all the time it is at work.
If, from any peculiarity in the arrangement of the existing plant, it is not prac-
ticable to charge the filter automatically in the way described above, recourse. must-be
had to a pump. For the purpose of obviating the irregularity ordinarily characteristic

page_text: of a pump-supply, the third nozzle K" of the cock D is coupled by a rubber tube to
a tank placed at a definite height. The pump delivery is coupled to the nozzle K¹,
and the excess from the said pump passes into the tank, which has the effect of tending
to produce a constant pressure.
Having now particularly described and ascertained the nature of the said
invention, and in what manner the same is to be performed, I declare that what I
claim is,
The hereinbefore described method of and apparatus for filtering wines and other
liquors, said apparatus consisting of filtering cloths F between corrugated metallic
gratings G, said filtering cloths being held apart by perforated rings, the said cloths
gratings and rings being built up in layers about a central cylinder B consisting of a
perforated and winged chamber, the whole adapted to allow liquor delivered into the
said chamber to flow therefrom and through perforated rings through the filtering
pockets as set forth.
Did this 20th
of Santana ham 1000