Improved Apparatus for Cooling or Heating Milk and other Liquids.
Year: 1896

page_text: Date of Application, 5th Aug., 1896-Accepted, 5th Sept., 1896
COMPLETE SPECIFICATION.
Improved Apparatus for Cooling or Heating Milk and other
Liquids.
I, JOHAN LUDVIG JÖNSSON, of Kungsholmsgatan 18, Stockholm, in the
Kingdom of Sweden, 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 :-
My invention relates to apparatus for cooling or otherwise treating milk and
the like, and comprises certain improvements hereinafter described whereby I am
enabled to construct an apparatus which will be both more durable and more
effective than those of the same type as heretofore made.
In the accompanying drawing
Figure 1 is a vertical central section, and
Figure 2 is a horizontal section on the line a-b Figure 1, showing my improved
apparatus.
A is a corrugated cylindrical casing having internal annular chambers or
channels A¹ formed as hereinafter described. The casing A is built up in the
following manner, that is to say:-c and d are corrugated or U-shaped rings, the
first forming when in position the external, and the second the internal surfaces
of the cylindrical casing A. The upper or one of the edges of each of the said
U-shaped rings c is extended as shown at c', and that of each of the U-shaped
rings d is likewise similarly extended as shown at d. The corrugated rings c
and d are so placed relatively to each other, and soldered or otherwise connected
at their points of contact, as to form the annular concentric chambers or
channels A'. The lowermost of the rings c and d are soldered or otherwise
secured to a plain ring B which takes a seating in a suitable annular trough-
shaped receiver or pan having an outlet or draw-off aperture f¹.
Upon the uppermost corrugated ring and upon an annular trough ; perforated
as shown at is mounted a hopper or receptacle g for the milk to be cooled or
treated. The said hopper g is provided with suitable apertures g¹.
¹ is the inlet for the water, which communicates through an aperture with
the lowermost annular chamber A. In order to admit of the cooling water or
other medium passing successively through all the above described annular
chambers A' formed in the casing A, openings h, h are provided between every
pair of annular chambers, the said openings being so situated that they will not be
one above the other or in line.
To effect a more even distribution of the water and cause it to run through the
whole peripheral surface of every annular chamber, a partition or diaphragm i is
provided in each of the said chambers, which diaphragm is preferably situated in
close proximity to the aperture & therein leading to the chamber next above.
To facilitate the description of the flow of water or its equivalent through the
apparatus the annular chambers or channels A¹ are marked with the numerals 1
to 18, the odd numbers indicating the annular chambers in the exterior casing or
jacket, and the even numbers those in the interior one, a like numeral indicating
the diaphragm for checking the flow in the corresponding chamber.
The path taken by the water through the apparatus is as follows:-
After passing through the inlet into the chamber or channel (A¹) marked 1
it circulates in the direction of the arrows until it comes to a crosswall, partition,
or diaphragm (i) marked also 1, immediately before or in front of which is one of

page_text: the openings or apertures h leading upwards into the chamber or channel
marked 2. Passing into this chamber or channel the cooling water or other
medium circulates until it comes to the partition or diaphragm marked 2, when it
passes upward through the opening or aperture in close proximity thereto, to the
chamber or channel marked 3, and so on, the water continuing to circulate in like
manner through all the chambers or channels A' until it enters that marked 18,
after circulating round which latter chamber it runs away through a suitable
outlet k.
It will be seen that the water is forced to take a zigzag course through the
annular chambers A' from the inlet h below to the outlet k above, a far more
efficient cooling or equivalent surface being thus provided than is the case in
apparatus as heretofore constructed with spiral corrugations forming one continuous
passage of the like shape.
'The milk to be cooled or treated runs in the usual way from the receptacle g
through apertures g¹ to the annular trough j from which it passes through the
perforations j and spreads itself in thin films over the outer and inner surfaces of
the corrugated casing A until it falls into the receiver or pan f from which it is
removed through the draw-off outlet f¹ as required. By thus passing the milk
over the internal and the external surfaces of the double annular casing the
efficiency of the apparatus is very considerably increased.
An apparatus constructed as above described can be made considerably smaller
than one of the same capacity as hitherto constructed, and furthermore accession
of strength is ensured by the combination of the corrugated rings soldered or
otherwise secured to each other as shown. There is besides no necessity for the
corrugations being formed as deep as would otherwise be necessary, and the said
corrugations are consequently far stronger and less liable to be bulged or deformed
by rough usage.
It is evident that the above described apparatus 'might be advantageously used
for heating milk or other fluids by simply passing hot water, steam, or other
heating medium through the annular chambers instead of the cooling water.
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. An apparatus 'for cooling or otherwise treating milk and the like, having a
casing so built up or constructed of corrugated rings, soldered or otherwise secured
to each other, as to form a series of annular channels or chambers, and means
whereby the water or its equivalent entering the lowermost of these chambers is
forced to take a zigzag course from one chamber to the other to the outlet, the
milk to be treated passing in a thin film over the inner and outer surfaces of the
corrugated casing substantially as and for the purpose specified.
2. The improved apparatus substantially as described with reference to the
accompanying drawing.
Dated this 5th day of August 1896
A. F. SPOONER,
124 Chancery Lane, W.C., Agent for the Applicant.