Year: 1897

page_text: I, CHARLES CONTET, of 186A, Avenue d'Arenc, Marseilles, France, Manufacturer,
do hereby declare the nature of this invention to be as follows:-
-
For extracting oils and fatty substances by closed hydraulic presses with cage,
even or warped sheet iron plates are placed in these cages to facilitate the flowing
of the liquids pressed out and to separate the cakes; these plates are massive and
the liquids can only flow through the sides of the cage between the small blades
which are arranged in them.
This blade system makes the construction of the cages very complicated and
expensive; we have consequently looked for means of doing away with it by em-
ploying separating plates perforated at their centre and having, according to this
centre, cylindrical rings which, owing to the superposition of the plates in their
working position in the cage, form a collecting tube for the flowing of the liquids
pressed out by the hydraulic press and preventing the solid substances from getting
into this collecting tube.
The separating plate which forms the subject of the present invention may be,
according to the form of the section of the cage to which it must be applied, square
rectangular, polygonal, circular or oval; this plate may be even, warped or fluted;
it has a circular opening at its centre and according to its centre a ring is arranged
forming a flange pipe, which rests upon the plate.
Under this flange circular and convergent grooves are made which lead the
liquids extracted by the pressure into the central hole. These grooves made in
the flange of the ring can also be made in the surface of the separating plate itself.
Under the separating plate is a second cylindrical ring the exterior diameter
of the tube of this latter ring is a little, smaller than the interior diameter of the
tube of the upper ring so that when the different separating rings, which are all
similar are fixed in the cage, alternately with the layers of matter to be pressed,
the extremity of the tube of a lower ring already penetrates into the socket of the
upper ring of the separating plate and continuing so from the bottom to the top
of the cage, so that all the superposed tubes form a collecting vertical conduit
for the flowing of the liquids, and this from the commencement of the operation
so that no particle of solid matter can enter into the collecting-tube thus formed..
Each separating plate is consequently provided with its two rings, an upper and
a lower one, as described above; these rings are fixed to the plate by screw, rings,
nut, bolt or any other firm system of attachment.
Another different construction of the plates consists in making, on the two faces
of the sheet iron, convergent grooves covered with one or more thicknesses of wire-
gauze fixed to the plate by iron hoops. In this case the wire-gauze forms a filter,
and the liquid following the grooves which terminate at the centre flows through
the tube formed by the rings.

page_text: We can, in the case just stated, do away with the grooves.
Finally another different construction of the separating plates consists in apply-
ing to the properly so called plate, one or more crowns leaving, between them and the
ring, one or more circular interstices. These crowns have grooves underneath
them in which holes are bored, allowing the liquid to fall vertically into these
grooves which lead it under the rings and from there to the central tubes. The
interstices are sufficiently narrow to prevent the introduction of solid matter into
the grooves. The latter may be convergent, parallel and in squares, they may
form any geometrical figure whatever, provided they are so arranged as to conduct
the extracted liquid to the centre of the plate.
Dated this 6th day of November 1897.
L. DUVINAGE}
Agent for Applicant.
I, CHARLES CONTET, of 186A, Avenue d'Arenc, Marseilles, France, Manufacturer,
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:
-
The present invention concerns hydraulic presses with enveloping form or frame
serving for the extraction of oils or fatty substances, the more special object of
which are separating plates provided with central collecting tube-sections intended
to facilitate the flowing of the matter extracted by the pressing action.
Hitherto, to facilitate the flowing of the liquids and the separation of the oil-
cakes in closed hydraulic presses, with enveloping forms or frames, plain or cor-
rugated but solid sheet iron plates are arranged in the interior of said enveloping
forms or frames and the liquid flows through the wall of the enveloping form
between blades arranged for that purpose; but this is very expensive and highly
complicates the construction of the enveloping form or frame.
These inconveniences are done away with the plates having central collecting
tube-sections and forming the object of the present invention, in place of the solid
pressuré-plates, the former plates being provided with channels and secured
together by means of collars forming a central collecting tube, at the same time
allowing the approach of the plates, as will be more completely described and
claimed hereinafter.
In the annexed drawing forms of execution of such pressure-plates are shown,
as an example.
Fig. 1 is a plan view of a square pressure plate, provided with its two central
tube-sections.
Fig. 2 is a vertical section through the centre of the same plate.
Fig. 3 is an elevation of the upper tube section of the plate.
Fig. 4 is a vertical section of a similar pressure-plate but provided with channels:
Fig. 5 is a bottom plan view of the upper tube section of this latter plate.
Fig. 6 is a part plan view of the plate shown in Fig. 4, the upper tube-section
being removed.
.F
Fig. 7 is a vertical section of a plate faced with wire gauze and provided with
radial channels.
:
'

page_text: Fig. 8 represents the same plate-in-a plane, wire-gauze and tube-sections, being
removed.
Fig. 9 represents in a vertical section, another form of pressure plate provided
with collecting tube-sections and concentric rings.
In these different figures, similar letters of reference denote corresponding parts.
a, a¹, all and all are pressure plates, 6, 61, 61, 6111 are the upper tube-sections of
the pressure-plates, c, cl, cl, clll and e are grooves or channels for the flowing of
the liquid, f indicates wire-gauzes, g are hoops holding the wire-gauze; h and h¹
are concentric rings, are interstices comprised between the rings h h¹; jare flow-
ing holes made in the rings h and h¹, finally k, and indicate the lower tube-
sections of the pressure plates.
The pressure plates may be square, rectangular, polygonal, circular or oval in
shape according to the section of the enveloping form or frame for which they are
intended.
The plate shown in Figs. 1 and 2 is square, and may be plain, corrugated
or striated moreover it has, at its centre a circular opening and is provided
with two tube-sections 6 and & fixed respectively by their flanges on the upper and
lower faces of the plate, to register with the opening of said plate.
The outer diameter of the lower tube-section k is a little smaller than the inner
diameter of the upper tube-section b so that the lower tube-section of each plate
can be telescoped into the upper tube-section of the plate placed immediately
below, whilst the upper tube-section b receives the lower tube-section of the plate
placed above.
I
We thus obtain a central collecting tube offering no solution of continuity and
allowing of the approach of the plates during the action of the press.
The liquid can therefore flow along the grooves e111 and c and through the col-
lecting tube formed by the tube-sections bk, from the beginning of the operation,
without having to fear the carrying away of the solid matter by the liquid.
The face of the flanges of the tube-sections bk. applied on the plate a is pro-
vided with radial grooves a leading on the one hand to the hollow part of the tube-
section, and on the other hand to a circular groove c¹¹¹ also made in the flange,
Figs. 1, 2 and 3.
The grooves c made in the flange of the tube-sections may also be made in the
pressure plate as indicated in Figs. 4, 5 and 6 showing a pressure plate a¹ provided
with grooves c¹¹.
In this latter example, the tube-sections 61 and are also provided with radial
grooves which, as well as those of the plate, lead to the circular groove c¹¹ made in
the plate.
.
The tube-sections bk and b¹ k¹ are secured to the pressure plates by means of
screws, bolts or by any suitable means.
In Figs. 7 and 8 is shown another form of construction of the pressure plates,
differing from the preceding ones in as much as radial grooves or channels e are
made in the upper and lower faces of the plate extending to the outer circumfer-
ence thereof and that the plate is covered, on its two faces, with wire-gauze f held
by means of iron hoops g (Figs. 7 and 8)..
.
In this case, the grooves c of the tube-sections may be suppressed, the wire-gauze
forms a filter, and the liquid, exclusively following the grooves e which terminate
in the central collecting tube, flows through this latter without carrying away any
solid matter,
In Fig. 9 is shown another form of construction of pressure plate all with which
one or more concentric rings h h are arranged around the tube-sections 6111 111,
at the same time being separated from said tube-sections and also from one another
by circular interstices i.
1
The concentric rings h h have holes j leading into the grooves el made in the
face of the rings applied against the pressure plate all and allowing the liquid to
dron through these holes and to flow into the central collecting tube by passing
under the tube-sections 6111 and 11. The interstices i comprised between the con-
1

page_text: centric rings are sufficiently contracted to prevent all introduction of solid matters
into the grooves: moreover these grooves may be convergent, parallel to one
another or form squares or any other geometrical figure, but must always be
arranged in such a way as to lead the extracted liquid towards the centre of the
plate.
Having now particularly described and ascertained the nature of my said in-
vention and in what manner the same is to be performed I declare that what I
claim is;-
1) In a pressure plate for hydraulic or hydrostatic presses, the combination with
the pressure plate provided with a central opening, of two flanged tube-sections
secured respectively at the centre and to the upper and lower faces of the plate
and having radial grooves or channels and a circular groove made in the face of
the flange which is applied on the plate, with the object of allowing the outlet
of the liquid, substantially as described and shown.
2) In a pressure plate for hydraulic or hydrostatic presses, the combination of
a plate having a central opening and radial grooves made in its two faces, and of
two flanged tube-sections secured respectively at the centre and to the upper and
lower faces of the plate and having radial grooves and a circular groove made in
the face of the flange applied on the plate, substantially as described and shown.
3) In a pressure plate for hydraulic or hydrostatic presses, the combination with
a pressure plate provided with a central opening and grooves on its two faces and
two flanged tube-sections secured to the plate and provided or not with grooves,
of two wire-gauzes secured respectively to the upper and lower faces of the plate
by means of metallic hoops, substantially as described and shown.
4) In a pressure plate for hydraulic or hydrostatic presses the combination with
the plate provided with a central opening, of two flanged tube-sections secured
respectively at the centre and to the upper and lower faces of the plate and having
radial grooves made in the face of the flange applied on the plate, and of rings
concentric with the tube-sections separated from one another by interstices and
provided on their face applied on the plate, with suitable grooves and holes lead-
ing thereto, the said holes passing through the concentric rings to serve for the
outlet of the liquid, substantially as described and shown.
5) With a pressure plate for hydraulic or hydrostatic presses, a series of similar
plates movable vertically, provided or not with grooves having a central opening
and provided each with two tube-sections grooved or not and secured respectively
to the upper and lower faces of the plate; the outer diameter of the lower tube-
sections being a little smaller than the inner diameter of the upper tube-sections
so that the tube-sections of the plates might telescope into one another, to form a
central collecting tube for the outlet of the liquid, substantially as described and
shown.
Tay
01 August 1090.
ROBERT E. PHILLIPS, Assoc. M. Inst.C.E., M.I.Mech. E.
Chartered Patent Agent,
70, Chancery Lane, London, W.Č., Associate Agent.