Improvements in Centrifugal Cream Separators.
Year: 1892

page_text: COMPLETE SPECIFICATION.
Improvements in Centrifugal Cream Separators.
1 JULES MÉLOTTE of Remicourt, in the Kingdom of Belgium, Agricultural
Machine Maker, 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 :-
This invention relates to improvements in cream separators and its object is a
novel arrangement of the interior of the turbine.
Upon the accompanying drawing :-
Figure 1 is a vertical section through the separator by the line A B C of Figure 2
and
Figure 2 & horizontal transverse section by the broken line D, E F G,
Figure 1.
Figure 3 is the exterior view, and
Figure 4 the top view of a part of the outer sheet iron plate or diaphragm of this
interior arrangement of the turbine...
Figure 5 shows, drawn to a larger scale, the course followed, in two half chambers,
by the milk and by the cream.
The turbine, d, is suspended vertically by the ring a. The milk from which the
cream is to be separated arrives in the chamber b, and is spread in the turbine by
the openings c, Figure 1, or in any other suitable manner.
Within the turbine d are arranged the one in the other, sheet iron plates or
diaphragms i, i, . in zigzag, the projecting angles of which f, as well as the
re-entering angles g, Figure 4, are provided at their summit, with openings r
respectively s, arranged at intervals in the entire height of the plate, and serving
for the entrance of the milk into the creaming apparatus, respectively for the issue
of the cream from this apparatus.
The outer plate i is kept in place by plates m which rest with friction upon the
inner side of the turbine d, while the other plates i are kept at a suitable distance
from each other by the plates n, Figures 2, 4 and 5.
Figure 5 represents for two half chambers, upon an enlarged scale, the creaming
of the milk as it is effected in each half chamber, that is to say in the several
compartments formed by the series of plates i, i. . . and comprised between two
series of adjoining openings and s. The arrows drawn with full lines indicate the
circulating of the milk; the arrows with dotted lines indicate the course traversed
by the cream.
In the rotating apparatus the milk and the cream are classed by density. The
cream sufficiently pure enters by the openings into the central chamber R and
escapes by the pipe T, while the skimmed milk which has acquired a sufficient
density advances from compartment to compartment passing successively by each
opening r and escapes at the periphery of the turbine by one of the known arrange.
menta

page_text: term "
compartment "the part of a chamber comprised between two adjoining
plates and between the nearest openings and s.
The complete milk, on issuing from the chamber b by the holes c, or otherwise,
arrives partly in the central chamber R of the turbine, Figures 2 and 5 and partly
between the most central zigzag plates i, i. Under the centrifugal action, the milk
of the chamber R first fills the projecting angles of the central plate i and seeks to
direct itself by the openings towards the periphery of the turbine. But the
apparatus being sufficiently filled with milk, the new milk, which arrives, can only
slowly reach the periphery of the turbine; on entering by the holes r into the first
compartment (the most central) formed by two parallel plates i, i the milk is
immediately arrested, in its projection towards the periphery, by the milk which is
already between the plates and it can only advance accordingly as the creamed
milk runs off. Then, begins the creaming represented schematically Figure 5.
Under the centrifugal force, the milk which is in the first compartment (the most
central) separates into cream and impoverished milk: the cream, being lighter,
.travels along the outer surface of the plate i towards the openings s while the milk,
'denser, circulates firstly between the two plates, as will be hereinafter apparent.
Arrived at the summit g of the re-entering angle, the cream issues by the openings s
and enters into the central chamber R. The same operation takes place in each of
the succeeding compartments; but the cream which separates therein, still holding
too great a quantity of milk and having, consequently, a high degree of density,
circulates firstly in the middle of the compartment in which it forms and thus goes
towards the openings r; when its density has sufficiently diminished, this cream
returns backward following, this time, the outer surface of the plate i, and passes,
by the holes s into the adjoining more central compartment; there, it first circulates
in the middle of the compartment going towards the openings r and mixing, with the
cream separated in this compartment; when its density has sufficiently diminished,
the cream changes the direction of its movement and goes towards the openings
to enter into a still more central compartment, as indicated by the dotted arrows
Figure 5. The cream thus travels through all the compartments more central than
that in which it separated from the milk and, finally, enters into the central
chamber R from whence it escapes by the pipe T.
The milk, like the cream, travels along all one side of the compartments of a
same chamber but in inverse direction. The fully drawn arrows, Figure 5 indicate
its course in the apparatus. It circulates firstly in the middle of the compartment,
going towards the holes s; when, by reason of the separation of the cream, the
density of this milk has sufficiently increased, it changes direction and, this time
following the inner surface of the plate i, it goes towards the. holes r, from whence
it passes, by. the holes into the next compartment further from the centre of the
turbine; it traverses this compartment and the succeeding compartments in the
same manner as the preceding, in increasing in density accordingly as it abandons
its cream under the centrifugal action. The milk entirely freed from cream leaves
the apparatus by a suitable arrangement.
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:-
In cream separators :-The arrangement, within the turbine, of a series of sheet
iron plates or diaphragms i in zigzag, placed vertically the one within the other,
provided with openings at their angles, and kept apart by metallic plates.
ХІШУ ПЕРЕКАТ
For the Applicant,
W. E. GEDGE,
Agent.