IMPROVEMENTS IN APPARATUS FOR CONCENTRATING AND " TREATING WINES
Year: 1883

page_text: LETTERS PATENT to Sydney Pitt of Sutton in the County of Surrey for an
Invention of "IMPROVEMENTS IN APPARATUS FOR CONCENTRATING AND
"
TREATING WINES communicated to him from abroad by the Compagnie
Industrielle des procédés Raoul Pictet of Paris
PROVISIONAL SPECIFICATION left by the said Sydney Pitt at the Office
of the Commissioners of Patents on the 19th February 1883.
"
SYDNEY PITT of Sutton in the County of Surrey "IMPROVEMENTS IN
APPARATUS FOR CONCENTRATING AND TREATING WINES [communicated to him
from abroad by the Compagnie Industrielle des procédés Raoul Pictet of Paris]
This Invention has for its object improvements in apparatus for concentrating
and treating wines.
The treatment consists in cooling the wine until ice is deposited from it, and the
arrangement of the apparatus is such as to economise the refrigerant and to
facilitate the operation.
The wine is first cooled by passing through a serpentine pipe surrounded by well
water contained in a cistern from which the supply to the condensor of the
refrigerating apparatus is drawn.
It is preferred to employ Pictet's refrigerator but others may be used.
After the preliminary cooling the wine flows through another serpentine pipe
contained in a cistern filled with ice cold water obtained from ice separated from
the wine as presently described.
This ice is discharged into a tank and between the cistern in which the serpentine
is immersed and the tank a rapid circulation is maintained by a rotary pump.
The wine next passes through a zigzag passage containing within it a pipe by
which the concentrated wine is led away from the apparatus. The zig-zag passage
and pipe constitute a temperature interchanger in which the temperature of the
weaker wine is lowered and that of the stronger wine is raised.
The cooled wine is now delivered by a flexible pipe into cylindrical vessels
immersed in the freezing tank of the Pictet's or other refrigerator and here the
wine remains until it is partially frozen and thickened by the cold. A flexible

page_text: pipe is then inserted into the containing vessel and the wine is sucked out into a
closed filtering chamber.
The filtering chamber is connected at the bottom with a rotary pump which
draws the wine through the filter and discharges it by the zigzag pipe of the
temperature interchanger as already explained.
The ice is stopped back in the filtering chamber by a perforated bottom covered
with a fabric.
The ice is removed from time to time by a door in the side of the filter and is
put into the ice-tank. Sometimes when only a moderate degree of concentration
is required the wine in place of being allowed to stand in vessels immersed in
the freezing tank as previously described is led through a zig zag pipe immersed
in the freezing tank and is delivered continuously on to an endless filtering web
which strains out the ice. As the web travels continuously forward it delivers the
ice into the ice tank.
Provision is made for clearing the zigzag pipe from ice deposited in it by
blowing air through the pipe.
The endless web where it receives the frozen wine is supported upon a perforated
surface forming the top of a chamber in connection with the rotary pump which
delivers the wine to the temperature interchanger. The pump maintains a partial
vacuum in the chamber the wine is sucked away and the ice left on the endless
web is drained dry.

page_text: SPECIFICATION in pursuance of the conditions of the Letters Patent filed
by the said Sydney Pitt in the Great Seal Patent Office on the 16th August
1883.
"
SYDNEY PITT of Sutton in the County of Surrey "IMPROVEMENTS IN
APPARATUS FOR CONCENTRATING AND TREATING WINES A communication to me
from abroad by the Compagnie Industrielle des procédés Raoul Pictet of Paris
This Invention has for its object improvements in apparatus for concentrating
and treating wines.
The treatment consists in cooling the wine until ice is deposited from it, and the
arrangement of the apparatus is such as to economise the refrigerator and to
facilitate the operation.
The wine is first cooled by passing through a serpentine pipe surrounded by
well water contained in a cistern from which the supply to the condenser of the
refrigerating apparatus is drawn.
It is preferred to employ Pictet's refrigerator but others may be used.
After the preliminary cooling the wine flows through another serpentine pipe
contained in a cistern filled with ice cold water obtained from ice separated from
the wine as presently described. This ice is discharged into a tank and between
the cistern in which the serpentine is immersed and the tank a rapid circulation is
maintained by a rotary pump.
The wine next passes through a zig zag passage containing within it a pipe by
which the concentrated wine is led away from the apparatus. The zigzag passage
and pipe constitute a temperature interchanger in which the temperature of the
weaker wine is lowered and that of the stronger wine is raised. The cooled wine
is now delivered by a flexible pipe into cylindrical vessels immersed in the freezing
tank of the Pictet's or other refrigerator and bere the wine remains until it is
partially frozen and thickened by the cold. A flexible pipe is then inserted into
the containing vessel and the wine is sucked out into a closed filtering chamber.
The filtering chamber is connected at the bottom with a rotary pump which draws
the wine through the filter and discharges it by the zigzag pipe of the temperature
interchanger as already explained.
The ice is stopped back in the filtering chamber by a perforated bottom covered
with a fabric. The ice is removed from time to time by a door in the side of the
filter and is put into the ice tank.
Sometimes when only a moderate degree of concentration is required, the wine,
in place of being allowed to stand in vessels immersed in the freezing tank as
previously described, is led through a zigzag pipe immersed in the freezing tank
and is delivered continuously onto an endless filtering web which strains out the
ice. As the web travels continuously forward it delivers the ice into the ice tank.
Provision is made for clearing the zigzag pipe from ice deposited in it by blowing
air through the pipe.
The endless web where it receives the frozen wine is supported upon a perforated
surface forming the top of a chamber in connection with the rotary pump which
delivers the wine to the temperature interchanger. The pump maintains a partial
vacuum in the chamber the wine is sucked away and the ice left on the endless
web is drained dry.
The drawings show two arrangements of apparatus made according to this
invention.
In Figure 1-A is the compressor of a Pictet machine-B the condenser-0 the
refrigerator placed in the freezing tank D-E are cylindrical vessels immersed in

page_text: the freezing tank, in these the previously cooled wine is frozen, F cistern in which
the wine is first cooled by well water-G inlet pipe for the well water-H pipe
leading the water from the cistern to the condenser B-H overflow pipe-
I serpentine pipe through which the wine circulates when being cooled by the well
water-K cistern of ice cold water to continue the cooling of the wine-J serpentine
through which the wine circulates when being cooled by the ice cold water-L pipe
for withdrawing the melted ice from the tank N-M pump to transfer ice cold
water from the tank N to the cistern K-N tank in which the ice is melted-
Otemperature interchanger (consisting of two concentric tubes) for cooling the
wine coming from the tank N by means of the concentrated wine-P pipe and
P¹ flexible pipe by which the wine is transferred from the temperature interchanger
to the vessels E-R flexible pipe for sucking the partially frozen and thickened
wine out of the vessels E into the filtering chamber S in which the ice is separated
from the concentrated wine-T perforated bottom covered with fabric for retaining
the ice but allowing the wine to pass-U pump for drawing the concentrated wine
from under the perforated bottom T and discharging it into the temperaturo
interchanger 0-X pipe by which the concentrated wine leaves the temperature
interchanger and goes to the tuns in the cellars—Y door in the filtering chamber
through which the ice resting on the perforated bottom T-is-removed-Zshoot for
conveying the ice from the filter to the tank N-Q overflow to the tank N.
In the arrangement shown at Figure 2 the cooling by well water, by ice cold
water and by the temperature interchanger O are the same as in Figure 1. The
modifications are in the freezing apparatus and in the mode of separating the ice
from the concentrated wine.
The cooled wine from the temperature interchange O passes into the serpentine E
in the freezing tank D..
The wine has a constant flow and the partly frozen and pasty mass falls onto the
shoot S and passes to the endless wire cloth T which is put into movement by the
rollers R R'. The endless cloth passes over the sucker U¹ worked by the pump U
which lifts the concentrated wine to the temperature interchanger 0 and the ice
separated from the concentrated wine falls from the roller R¹ into the tank N
which furnishes the ice cold water to the cistern K. With this arrangement the
operation is more continuous than with the first and is particularly suitable in
cases where only a moderate degree of concentration is desired.
A pipe Z is provided to admit compressed air to the serpentine E to clean it and
remove ice from it.
By the above described arrangements wines are methodically congealed at a
minimum expense and the ice is separated mechanically at a small cost without
having to be handled by the workmen.
Having thus described the nature of the said Invention and the manner of
performing the same I would have it understood that what I claim is the apparatus
for concentrating and treating wines substantially as described.
In witness whereof I the said Sydney Pitt have hereunto set my hand and
seal this Sixteenth day of August in the year of our Lord One thousand eight
hundred and eighty three.
AVRUZAN
DUI