Year: 1888

page_text: Date of Application, 8th Feb., 1888
Complete Specification Left, 7th Nov.. 1888
Complete Specification Accepted. 31st Dec., 1888
I, CHRISTIAN FREDERIK LARSEN of Copenhagen in the Kingdom of Denmark,
Manufacturer, do hereby declare the nature of this invention, to be as follows :-
This invention relates to cream separators and is based upon the experience that the
centrifugal separation of the milk from the cream is preferably effected in an open
basin of small depth and by operation on a very small quantity of milk at a time.
The construction is simple and very durable, the receptacle can be given a very large
diameter thereby allowing of a smaller number of revolutions.
The receptacles being at the same time less deep, less motive power is required and
the improved apparatus is therefore very suitable for small dairies.
The receptacle chiefly consists of a dish or basin of greater or less depth centered on
the end of a vortical rotating shaft. On the circumference of the dish are an upper
and lower deflecting ring and various canals or perforations are made in the rim of
the dish inside of said rings.
The milk is supplied through the pipe above the centre of the dish and spreads by
rotation in a very thin layer over the whole dish, the cream accumulates under the
upper deflecting ring while the skim milk flows down through the canals into the
lower ring.
The termination of the supply pipe lies parallel to the bottom of the dish and so near
to the same that the latter acts as centrifugal sucker drawing the milk from out the
pipe and thereby causes the supply of inilk to automatically vary according to the
speed of rotation of the separator.
For adjusting the amount supplied the pipe is arranged to be lifted and lowered
(also during the rotation) for instance by a screw thread in a stationary nut or vice versa
or in any other suitable manner. The dish can be detached from the shaft for cleaning
or other purposes.
The supply apparatus may feed through a small centrifugal arrangement on the
main dish, the same acting as centrifugal sucker for drawing the fresh milk from the
supply pipe, so that the supply of milk must vary according to the rotating speed of

page_text: the vessel; beside the regulation of supply at pleasure by the position of the supply pipe
such preliminary separator spreads the milk so that the main separator is uniformly
fed in its whole circumference, thus increasing the capacity of the receptacle.
The preliminary separator may consist of any suitable number of conical rings and
be arranged according to construction of the separator.
HERBERT & Co.,
Agents to Applicant.
I CHRISTIAN FREDERIK LARSEN of Copenhagen in the Kingdom of Denmark
Manufacturer 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 centrifugal machines for separating the cream from milk,
in which a continuous stream of milk is supplied to a shallow rotary basin and it
consists in the improvements hereinafter described and claimed.
Referring to the accompanying drawings Fig. 1 is a vertical section of the
improved separator. Fig. 2 a horizontal section on line A, A, Fig. 1. Fig. 3 is a
detail view and Figs. 4, 5 and 6 illustrate modifications.
Figs. 1 and 2 show the reservoir which is principally a basin of shallow depth and
placed horizontally upon the vortical rotary shaft 6. The basin a is covered around
its circumference by a rim or flange c¹ and on the lower part of the basin is arranged
another rim or flange c³. In the middle of the basin is an elevation or dome d, the
surface of which is struck upon a radius from the centre of the ball joint hand upon
which flows the milk passing through feed pipe f.
The mouth of the foed pipe is parallel with the dome d so that the annular opening
between the pipe and the dome remains the same during the oscillations of the basin
and the pipe outlet is placed so close to the dome that the milk is drawn from the pipe
during rotation and thus the supply varies automatically according to the rotary
velocity of the reservoir.
To keep the milk longer under the influence of the centrifugal force, several slantingly
arranged ribs
g are formed or fixed on the bottom of the reservoir, these being directed
inwards and forwards towards the direction of rotation of the basin thus giving a back
or central throw to the milk. The shape and slant of the ribs may differ provided the
inclination thereof be forward and inward in direction of the rotation of the reservoir.
In the drawings the ribs are shown rounded off on their upper edge as well as at their

page_text: connection with the bottom of the reservoir and the motive direction is indicated by
an arrow in Fig. 2. Some of the ribs are hollow and serve as pipes to carry the milk
from the circumference of the reservoir and through its bottom to the rim or flange c²
arranged on the lower surface where the milk may pass off by overflowing or in any
other mannor, whilst the cream is collected underneath the flange c¹ whence it is
removed in different known ways.
Fig. 3 shows the improved connection of the centrifugal reservoir to the shaft, on a
larger scale than Fig. 1, a is the middle of the lower part of the centrifugal reservoir,
bis the shaft, upon the highest point of which is formed a bed wherein rests a ball h
and upon said ball lies the reservoir a in a bearing at its bottom.
Between the two ball seats is a sufficient space around the ball to allow the reservoir
the necessary oscillation, and said space is enclosed by a cylindrical flange k on the
lower part of the reservoir. The above shaped ball joint gives much more freedom of
movement to the reservoir a in its connection with the shaft b than the joints or
couplings used hitherto.
Figs. 4 to 6 show the bottom of the centrifugal reservoir with other feeding apparatus.
The apparatus consists of one or more funnel shaped rings m² and m³ which are
arranged within the reservoir in such a manner that the annular milkway within or
formed by the reservoir is situated around the outer ring m¹ and independently thereof.
The apparatus can be made of any number of rings, only the outermost ring must haveits
widest part below, the next one must have its widest part above and so on alternately.
The apparatus acts like a smaller centrifugal machine in the larger one and increases
thereby its producing capacity in passing the milk from the pipe over the inner side
of all rings before it enters the reservoir, the milk is kept for a longer time under the
influence of the contrifugal force. The securing of the ring feeder to the reservoir
may be arranged in any convenient manner according to its various shapes.
Fig. 4 shows the feeding apparatus as a single ring m¹ and the pipe fis bent so far
that its mouth is parallel with the inner wall of the ring and the latter is so near to it
that the ring draws the milk from the pipe during rotation and distributes the same
over its inner wall and downwards lengthwise and over its lower edge into the reservoir.
Fig. 5 shows also only one ring m but here the pipe f discharges against a cross
partition wall n which is so secured to the upper part of the ring that there are openings
between the partition and the ring. The mouth of the pipefis here parallel with the
partition wall and is brought so close to the latter that it draws the milk from the pipe
during rotation and distributes the same radially over its surface and through the
openings over the inner wall of the ring and thence downwards over the lower edge
into the reservoir.
Fig. 6 shows a feeding apparatus consisting of two funnel shaped rings m' and_m²
of which the inner one m² is in close connection with the bottom of the reservoir. The
pipef discharges here against the dome d and so close to the same that the rotation
draws the milk from the pipe, as however the ring m³ is secured to the bottom and has
its wider part above, the rotation brings the milk upwards along the inner wall of m
and over its upper edge to the inner wall of the ring m¹ and from this downwards into
the reservoir as in Figs. 4 and 5. The ring m² can also have an independent support
in which case the feeding is done against its inner side, the function is not altered
thereby.
The most useful feature of the feeding apparatus is, that it forces the milk to remain
for a longer time under the influence of the centrifugal force and that it acts like the
reservoir as a centrifugal sucker to the feed pipe and thereby regulates automatically
the supply according to the velocity of the reservoir.
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 centrifuccal cream sanantara

page_text: said ribs or some of them being pipes from the interior circumference of the reservoir
to the exterior at said flange substantially as and for the purpose set forth.
2. The combination with a rotary and oscillating basin of a spherical dome & therein,
the centre of which is the centre of oscillation of said basin and a feed pipe discharging
close upon said dome substantially as and for the purpose set forth.
3. The combination with a rotary basin and rotary shaft supporting and driving said
basin of a ball sockot in said shaft, a ball socket in the base of the basin and bull / in
said sockets and a flange k substantially as and for the purpose set forth.
•
4. The combination with a centrifugal reservoir of a feed device comprising one or
more conical rings m² m² concentric with said reservoir and alternately inverted
substantially as and for the purpose set forth.
5. The combination with a conical feed ring of a feed pipe discharging parallel with
the inner wall of said ring and in close proximity thereto for the purpose set forth.
6. The combination with conical ring m¹ of a horizontal partition n therein and feed
pipe discharging on said partition and in close proximity to the surface thereof for the
purpose set forth.