Year: 1889

page_text: I CLEMENT, Baron of BECHTOLSHEIM, Civil Engineer, of Munich, in the Empire of
Germany, do hereby declare the nature of this invention to be as follows:-
In the separation of cream from milk in stationary vessels it is perceived that the
separation takes place more quickly and completely the shallower the vessel,
because with shallow vessels the separating parts have to penetrate a thinner
layer of liquid than with deep vessels. The same principle applies to centri-
fugal machines, the separation in a centrifugal machine being likewise per-
formed the quicker the thinner the layer of liquid is which these parts
must penetrate. In centrifugal machines the separation is done in a radial
manner when therefore the milk is drawn through a volute or scroll shaped par-
tition, the milk enters at the centre, and runs through the volutes outward, whilst
the cream runs along the outer sides of the volutes in opposite directions towards the
centre; such a centrifugal machine would be considerably more productive than if it
were not provided with the volute partition.
Instead of a long volute, one can also arrange with equal success, many short but
steeper volute or scroll walls.
The more frequently the radius is intersected by the several walls, the thinner is the
layer of milk or other material and the greater the productive capacity of the centri-
fugal machine.
Since for reasons of cleaning the space between the spiral or volute walls must be
made fairly large it is advantageous to fix respectively to the bottom and lid of the
centrifugal machine spiral walls interleaving between one another or with others
arranged on horizontal partitions.
The milk flows through the lower scroll spaces, outwardly, passes into those spaces
next above and in them inwardly towards the centre into the uppermost scroll spaces;
and in those outwardly.
Instead of the spiral or volute partitions, spiral or volute tubes may be inserted.
In a similar manner as by spiral shaped partitions the centrifugal machine can be
divided by metal cylinders fitting into one another or by conical plates in such a
manner that the radius is intersected several times thereby. To these plates several
wires or ribs may be soldered in radial direction to keep their distance. Or instead
of these wires, notches or grooves are arranged in the plates which facilitate the
contrary movement of the separated liquid.
The milk may run between all the plates from within outwards or alternately from
within outwards, and from without, inwards.
When particles have to be separated which are of more specific weight than the
liquid the latter flows through the partitions from without inwardly. In such case.
the cylinder may have a somewhat less or greater rotary speed than the drum or
partitions so that the heavy particles are evenly distributed on the inner wall of the
drum and then flow off continuously through a small pipe which may be closed by
a brake.
:
בז
.
1
1

page_text: Improvements in Centrifugal Separators.
I CLEMENT, Baron of BECHTOLSHEIM of Munich in the Kingdom of Bavaria, Empire
of Germany, Civil Engineer 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―
It is a well known-fact, that the separation of cream.from milk in stationary vessels
takes place more quickly and completely the shallower the vessel, as in a shallow
vessel the layer of liquid to be passed by the separating parts is thinner than in a
deep vessel. To apply the same principle to centrifugal creamers is the object of
my present invention.
As in centrifugal creamers the separation is performed in radial direction the liquid
to be separated is to be divided in layers of small extension in radial direction. In
practice I make use of a number of round conical plates which are placed above each
other inside of the bowl or drum of a centrifugal creamer in such a manner as to
leave a narrow space between the upper surface of each lower plate and the lower
. surface of each upper plate...
The accompanying drawing illustrates my said invention.
i
Fig. 1 is a vertical section of the upper part of a centrifugal creamer and Fig. 2a
horizontal section thereof at the line xx Fig. 1. Figs. 3 and 4 show a single plate in
side elevation and plan.
a is the bowl or drum of a centrifugal creamer and provided with a cover a¹
fastened to the bowl or drum by screws or other suitable means, b is the vertical shaft
of the bowl or drum, is the upper part of the stand or frame wherein the bowl a
rotates, c are the conical plates provided with ribs c' for holding them in sufficient
distance from each other, e are ribs at the inner surface of the bowl a for holding the
plates c in proper position. For the same purpose are the wings d' attached to the
pipe which leaves the milk introduced from a suitable reservoir by the spout ƒ of
the cap g
The milk flowing over the rim of the cap g enters between the plates c and is
separated by centrifugal force into cream and skim milk such separation being per-
formed very quickly and completely as the layer of liquid is a very thin one. The
skim milk goes to the periphery of the bowl and passes finally through the holes i
betweenthe lidsk and while the cream being of less specific gravitycollects nearer to
the centre of the bowl and rising therein flows over the rim of the cover a¹ and
between the lids and The lids and are as usual provided with outlet
spouts not shown in the drawing:
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 centrifugal separators or creamers the combination of the conical plates c' with
the rotating drum or bowl a substantially as described.
Let US TOLI (RELY UI INDYCRIVCI TOON.
HERBERT & Co.,
18, Buckingham Street, Strand, London, W.C., Agents to Applicant.
HERBERT & Co.,
18, Buckingham Street, Strand, London, W.C., Agents to Applicant.