Improvements in Centrifugal Milk Separators.
Year: 1892

page_text: Date of Application, 11th Nov., 1892-Accepted, 7th Jan., 1893
COMPLETE SPECIFICATION.
Improvements in Centrifugal Milk Separators.
1 FREDERICK WILLIAM GOLBY of 36 Chancery Lane, in the County of
Middlesex, Patent Agent, do hereby declare the nature of this invention, as
communicated to me by Sven Jónsson, of 18 Schönbergsgade Copenhagen,
Denmark, Engineer, and in what manner the same is to be performed, to be
particularly described and ascertained in and by the following statement :-
The invention relates to improvements in the construction of centrifugal milk
separators and serves to increase the working capacity of the centrifugal separator
to so great a degree that, for example, the working capacity is 30 per cent. greater
than with ordinary centrifugal separators.
In the accompanying drawing,
Figure 1 represents a vertical section and Figure 2 a horizontal section, through
the lines 1-2 of Figure 1, of a centrifugal separator constructed according to this
invention.
A is the centrifugal drum along the periphery of which, vertical partitions are
inserted tangentially to the inside of the centrifugal drum and set obliquely so that
their back lateral edges are turned towards the direction of the motion of the
centrifugal. The result is, that along the circumference of the centrifugal, there is
a series of spaces C closed on three sides, into which the milk to be separated is
conducted at the bottom at a, in order to be pressed partly upon the periphery and
partly upwards so that the heavier particles (the skim milk) seek the outside
towards the periphery, whilst the lighter particles (the cream) are gradually
collected in the centre.
During this process, the milk layers are gradually pressed against the partition
walls B which by reason of their sloping position still further promote the separation
of the fresh milk, whereas the cream glides along this inside towards the centre of
the drum, whilst the skim milk passes continuously upwards and outwards.
After
the separation is completed, the skim milk and the cream are led out through the
pipes c and b respectively.
The said invention must not be mistaken for other constructions in which
tangential paddles are introduced, which leave an open ring formed space along the
periphery of the drum. The main principle of the present invention is just this-a
series of tangentially placed partition walls which close tightly to the circumference
of the drum so that along this a series of spaces closed upon three sides is produced
along the circumference of the drum from which the cream glides towards the
centre of the centrifugal apparatus whilst the skim milk is pressed outwards and
upwards.
Instead of the straight partition walls B, bent in zigzag partition walls may be
employed, that is to say, partition walls bent in such a manner that a vertical linear
section through such a wall shews as a zigzag line. These are placed in the same
manner as the straight partition walls so that between the successive partition walls,
and the outside of the drum a series of spaces closed upon three sides is produced
into which the milk flows from underneath in order during the upward passage to
be separated into cream and skim milk as before described.
Having now particularly described and ascertained the nature of this said inven-
tion, and in what manner the same is to be performed, I declare that what I
claim is :-
In centrifugal drums of milk separators, the application of a vertical series of
partition walls arranged along the circumference of the centrifugal tangential to
the inner wall of the same, set perpendicular or bent zigzag by means of which

page_text: along the periphery of the drum a series of spaces closed upon three sides is
produced, the open sides of which turn obliquely towards the direction of the
movement of the centrifugal-all substantially as described and for the purpose
stated.
Dated this 11th day of November 1892
F. W. GOLBY,
36, Chancery Lane, London, W.C.