FR2590840A1 - Press-cylinder device for extracting grape juices - Google Patents

Abstract

Press-cylinder device for extracting grape juices. It consists of the combination, firstly, of an elastic and flexible, even pneumatic, cylindrical surface 3, 4, then of a functional profile of the pressure surfaces with embossings for crushing and for draining the juices and, finally, of a refrigerator device incorporated in the collector before its distribution. It is intended to ensure the continuous production of grape juices with a view to their immediate consumption at a specific temperature.

Description

 Device of pressing cylinders for the extraction of grape juice.

 it is intended to ensure the production of grape juice continuously for immediate consumption at a determined temperature.

 The apparatuses used until today in uvale stations or even for a domestic application did not make it possible to obtain a total extraction of the juices nor a perfect separation of pulp and grains; more consumption at a high ambient temperature was unpleasant for the consumer.

 The device according to the invention eliminates these drawbacks and makes it possible, by the use of an increased crushing surface, to ensure an almost total extraction of the juices, while facilitating the separation of the solid parts and giving the possibility of obtaining a juice. at the desired temperature at the time of consumption which further increases its clarity and fluidity.

 It is constituted by the combination first of an elastt and full flexible cylindrical surface or even ~ pneumatjue, then by a prolfontional pressure surfaces with reliefs of crushing and drainage of juices and finally by a refrigerator device integrated in the front collector its distribution.

 Figure 1 shows the grinding cylinders seen in elevations.

 Figures 2 and 3 schematically show the active pressure surfaces.

 Figure 4 is an elevational view of the functional profiles of crushing and fluid collector at the time of grinding.

 Figure 5 shows the refrigerated juice collector.

 Figure 6 is a view of a new extractor device using the crush cylinders and the refrigerator.

 The extractor cylinders, fig 1, consist of a support 1, 2 on which are mounted elastic and flexible linings such as a pneumatic chamber 3, 4.

These cylinders rotate in opposite directions, arrows A,
B, and are brought together until contact is made at point 5, arrows C, D.

 This contact should initiate a slight deformation which will be increased when the grains or clusters are introduced, arrow E.

 This grinding surface 6 will be increased considerably compared to the generator 5, so that the crushing will be faster.

 In addition, the bursting of the grain will be caused by the raised profiles 7, 8 which not only ensure the crushing of the pulp but also the extraction of the grains while the juices are drained by the grooves 9.

 Depending on the nature of the grains, it is possible to use a less elastic or even rigid cylinder 10 and a flexible elastic cylinder or else to combine the two devices in the same device.

 Thus according to Figure 6, the cylinders 1 and 2 are elastic and flexible, while the cylinder 10 is hard. The same is true for the cylinders 12 and 13 on either side of the endless filter 16.

 The grains are first crushed by the cylinders 1 and 2 and the pulps are second pressed by the cylinders 11, 10 and 12, 13, so that almost all of the juice will be extracted before expelling the waste.

 On the other hand, the collector 15 will include a frigory generator 17 bringing the juice to the desired temperature giving it all its flavor before being brought into the glass 18.

 The elasticity of the lining 3 or 4 will allow the compressed material to return to its initial regular cylindrical shape, while the deforming force will have ceased to produce its effect.

 The reliefs 7, 8, 9 will have maximum efficiency and will fulfill, at the same time as their pressure function, that of tearing, bursting and separation of the seeds and pulps while draining the juices, which will facilitate filtering and will ensure accelerated production.

 Finally, instant refrigeration at the time of flow will only clarify the juice by coagulating the pulp fragments, but will also increase the flavor by canceling the oxidizing thermal effects of ambient temperatures.

However the forms, dimensions and arrangements of
different elements may vary within the limit of equivalents
like the materials used for their manufacture,
without changing for that, the general conception of the invention
which has just been described.

Claims (3)

 10 Device of pressing cylinders for the extraction of grape juice intended to ensure continuous production for immediate consumption at a determined temperature by giving the possibility of increasing the pressure surface, while obtaining at the time of grinding a pre-selection separating the seeds, the pulps with drainage of the refrigerated juices at the time of their distribution, characterized by the combination of a rigid frame (1, 2) supporting a cylindrical lining (3, 4) elastic and flexible, preferably pneumatic so that the contact point (5) which until now consisted of a point generator, is increased by bringing the cylinders (1, 2) closer together and introducing the clusters to form a crushing surface (6) with grinding reliefs (7, 8) and intermediate collecting groove (9) and finally of a refrigerator element (17) integrated into the collector (15).  20 Device according to claim 1 characterized in that only one cylinder can be provided with a flexible and elastic lining (11) while the other contact cylinder (10) is rigid.  30 Device according to claim 1, characterized in that the presser assembly can comprise two cylinders with flexible and elastic lining (1, 2), a group of cylinders (11, 10) one flexible and elastic, the other rigid or two hard cylinders (12, 13) for the additional pressures of the pulps before their expulsion, this on either side of the endless filter (16).