Process and Apparatus for Sterilizing Natural and Artificial Butter.
Year: 1899

page_text: Date of Application, 28th July, 1899
Complete Specification Left, 27th Apr., 1900-Accepted, 28th July, 1900
PROVISIONAL SPECIFICATION.
Process and Apparatus for Sterilizing Natural and Artificial Butter.
I, ADONIS DUBUISSON, of Rue de l'armenhuit No. 1, Laeken, Brussels, in the
Kingdom of Belgium, Manufacturer, do hereby declare the nature of this inven-
tion to be as follows:-
This invention relates to a process for sterilizing natural and artificial butter
and to apparatus for effecting such sterilization.
According to my invention the butter to be sterilized is introduced in a melted
condition into a vessel in which it is brought to a temperature of about 60° and
in which it becomes separated from the casein and from the water which it
contains; after having been thus purified it is caused to circulate in a second
vessel heated to 1000 or 110° Centigrade in which the sterilization proper is
effected; it then passes into a third vessel designed to bring it to its first melting
point and is treated in a churn in which about 20% of sterilized water is added
to it; the emulsion thus produced is then drawn through special cooling pumps
in which the butter sets, so that it can be afterwards formed into rolls or pats
in a suitable mould.
The improved apparatuses which I employ for practically carrying out this
process consist, principally, of vessels made so that they can be easily cleaned and
constructed in two or more parts placed together and each provided in the interior
with recesses and projections or zig-zag pieces adapted to enter one another when
put together so as to form serpentine passages or coils arranged in the middle of
perfectly closed chambers and terminating in a deposit receiver; and of a special
system of pump having a cylinder bored so as to form a number of pump bodies,
such pump bodies being surrounded with a water bath and each being fitted with
a valve and provided with a tubular extension arranged in a cooling tank and
terminating in a suitable mould.
1 21
001
1
1000
COMPLETE SPECIFICATION.
Process and Apparatus for Sterilizing Natural and Artificial Butter.
I, ADONIS DUBUISSON, of Rue de Parmenhuit No. 1, Laeken, Brussels, in the
Kingdom of Belgium, Manufacturer, do hereby declare the nature of this inven-
tion 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 a process for sterilizing natural and artificial butter
and to apparatus for effecting such sterilization.

page_text: According to my invention the butter to be sterilized is introduced in a melted
condition into a vessel in which it is brought to a temperature of about 60° Centi-
grade and in which it becomes separated from the casein and from the water which
it contains; after having been thus purified it is caused to circulate in a second
vessel heated to 100° or 110 Centigrade in which the sterilization proper is
effected; it then passes into a third vessel designed to bring it to its first melting
point and is treated in a churn in which about 20% of sterilized water is added
to it; the emulsion thus produced is then drawn through special cooling pumps
in which the butter sets, so that it can be afterwards formed into rolls or pats
in a suitable mould.
The improved apparatuses which I employ for practically carrying out this
process consist, principally, of vessels made so that they can be easily cleaned and
constructed in two or more parts placed together and each provided in the interior
with recesses and projections or zig-zag pieces adapted to enter one another when
put together so as to form serpentine passages or coils arranged in the middle of
perfectly closed chambers and terminating in a deposit-chamber; and of a special
system of pump having a cylinder bored so as to form a number of pump bodies,
such pump bodies being surrounded with a water bath and each being fitted with
a valve and provided with a tubular extension arranged in a cooling tank and
terminating in a suitable mould.
In the accompanying drawings which illustrate by way of an example one
means of carrying out my invention,
Figure 1 is a front elevation of the complete heating apparatuses:
Figure 2 is a side elevation of the same combined with a churn and the special
pump herein before referred to:
Figure 3 is a sectional view of a detail shewing. the two component parts of a
heating apparatus į
Figure 4 is a plan of the said parts:
Figure 5 is a section of the heating apparatus as it appears when the two parts
represented by Figures 3 and 4 are united together;
Figure 6 is a longitudinal section of the pumping apparatus employed for
pumping the butter, and of the refrigerating tank and an elevation of the mould:
Figure 7 is a transverse section taken through the middle of the pump body:
Figure 8 is a view of the pump combined with its driving mechanism.
As will be readily understood by reference to the drawings the complete
apparatus comprises three superposed heating vessels 1, 2, 3 (Figures 1 and 2) a
churn 4, and the pump 5, (Figure 2).
Each of the heating apparatuses 1, 2, 3 is formed of two semi-cylindrical parts G
and 7, each having in its interior a partition 8 made up of recesses and projections
of zigzag form so that the two parts when placed together form an inner serpen-
tine channel 9 (Figure 5) widened at the lower part so as to form a chamber 10
in the heating vessel. When the two parts 6 and 7 are placed together the
channel 9 and the chamber 10 have no communication with the surrounding
space 11 of the heating vessel.
The three apparatuses thus formed and superposed are provided with connect-
ing pipes 12 uniting the upper part of the chamber 10 of one heating vessel
with the serpentine channel 9 of the following heating vessel. The lower part
of each chamber 10 also communicates by means of a pipe 13 with a level-
indicator 14 in communication with a common discharge pipe 15.
The interior space 11 of each heating vessel is provided with a steam inlet 16
fed by a pipe 17 and with an overflow and discharge pipe 18.
The lowermost heating vessel 3 communicates by means of its pipe 12 with a
churn 4 which is connected by a pipe 19, Figure 6, to the pump 5.
The latter consists of a water bath 20 in which is placed a cylinder 21 bored
so as to form a number of pump bodies 22 in each of which works a piston 23.
The various piston rods are connected by a plate 24 actuated by a single rod 25
to which motion is communicated by the gear 26. Behind each piston 23 is

page_text: arranged a valve 27 placed at the inlet end of a tube 28, the various tubes 28,
the number of which corresponds to that of the pump bodies 22, being placed
in a refrigerating tank 29 provided with cross pieces 30 designed to cause a
current of cold water all around the tubes 28. The latter extend into a mould 31
of suitable shape.
The heating apparatuses are provided with the necessary safety devices such
for instance as the safety valve 32, the pressure gauges 33 and the automatic
discharge cock 34 for getting rid of the water of condensation.
The melted butter is introduced into the heating vessel 1 and passes into the
channel 9.
The vessel being heated to about 60° C. by means of steam introduced through
the part 6 into the part 11, the casein and the water contained in the butter are
deposited in the chamber 10 whence they can be withdrawn through the discharge
pipe 15 of the level-indicators 14.
The butter thus purified passes through the tube 12 into the sterilizing vessel 2
heated to from 100 to 110 Centigrade. After remaining about 10 minutes in
the channel 9 and in the chamber 10 of this heating vessel the sterilization is
effected and the butter passes into the heating vessel 3 in which it is brought back
to its first melting point, that is to say, 34 to 40° C. It afterwards passes into
the churn 4 in which 20% or more of sterilized water is added. After twenty
to thirty minutes churning, the emulsion is drawn off through the pumps 5 and
forced into the refrigerating tubes 28 in which the butter becomes set and can
be formed into rolls or pats in the mould 31.
Having now particularly described and ascertained the nature of my said
invention and in what manner the same is to be performed, I declare that what
I claim is:-
1. A process for sterilizing natural and artificial butter in which the melted
butter is caused to pass successively through three heating apparatuses each
provided in the interior with a serpentine channel terminating in a deposit-
chamber is freed in its passage through the said apparatuses from the casein
and water which it contains, is subjected to sterilization proper, and is brought
back to the initial melting temperature to be afterwards churned with a certain
quantity of sterilized water and finally forced by special pumps through refrigera-
ting tubes extending into a suitable mould, substantially as set forth.
2. A heating apparatus for sterilizing natural and artificial butter, formed of two
or more parts placed together and having walls in the interior forming recesses
and projections which enter one another so as to form a serpentine channel in
the heating apparatus and terminated by a deposit-chamber, substantially as
herein before described and illustrated in the accompanying drawings.
3. A special pump for use in apparatus for sterilizing butter, characterized by
a cylinder provided with a certain number of perforations constituting as many
pump bodies in which move pistons fixed to a common driving head, the group of
pump bodies being surrounded with a water bath and each pump body being provided
with a valve, and a delivery pipe arranged in a refrigerator, substantially as
hereinbefore described and illustrated in the accompanying drawings.
Dated the 27th day of April 1900
G. F. REDFERN & Co.,
4, South Street, Finsbury, London, Agents for the Applicant.