Improvements in Separators for Cream and Butter.
Year: 1890

page_text: Date of Application, 25th Mar., 1890
Complete Specification Left, 17th Dec., 189C-Accepted, 31st Jan., 1891
PROVISIONAL SPECIFICATION.
Improvements in Separators for Cream and Butter.
We ADOLPH WAHLIN of No. 16 Handtverkargaten, Stockholm, Sweden, Agent,
CARL JOHAN LUNDSTROM of No. 15 Fleminggaten in said Stockholm, Mechanic,
and THOMAS COLLINS of Winchester in the State of New Hampshire United
States of America, Manufacturer, do hereby declare the nature of this invention to
be as follows :-
Our invention as distinguished from pre-existing devices relates to the combina-
tion with a revolving separator, of butter accumulators composed of plates or wings
against which the buttery particles are violently projected or come into contact and
which they are detained for the more watery skim milk to pass away and
the butter particles striking against each other upon the accumulators adhere
together and produce globules and small masses of butter that are easily separated
from the skim milk.
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We make use of a centrifugal vessel upon a revolving shaft that may be either
vertical or horizontal and said vessel is preferably conical. The milk is supplied
by a pipe from a suitable vessel and the centrifugal action produces a separation of
the skim milk and the cream, the former passing off by a pipe opening into the
centrifugal vessel near the bottom thereof, and the cream being thrown off from
the edge of the mouth of the separator.
The centrifugal vessel or separator may be enclosed in any suitable case and
there is a receiving vessel for the cream and skim milk. This receiving vessel may
be divided by a partition so that the cream passes into the upper vessel and the
skim milk into the lower vessel.
The butter accumulators are made with numerous surfaces against which the
buttery particles are projected with the violence due to the centrifugal action and
such buttery particles adhere to said surfaces and to each other sufficiently to form
granules or particles that accumulate until they are thrown off from the surface of
such accumulators.
These accumulators may be a series of diagonal blades or wings pendant from a
ring supported in any suitable manner or said accumulators may be wings upon
separate shafts supported within the receiving vessel, or they may be plates between
discs, the plates being upon pivots supported within the receiving vessel. The
wings or the plates are free to revolve by the impact of the butter particles against
the surfaces and this revolving action promotes the efficiency of the apparatus.
We prefer that the butter particles strike the surfaces of the accumulators
higher up than the skim milk.
The shafts of the revolving accumulators may extend up and pass through the
case or cover of the receiving vessel and be provided with pulleys for belts by
which they are driven so that the accumulators may act as agitators to churn
the cream, and when the accumulators are within an annular vessel the cream
can be admitted at an opening at one side and the buttery particles and butter
milk pass off at an opening at the other side of said vessel, there being a
conical partition to direct the butter particles to said opening and there may be
wings upon the shafts of the accumulators against which the skim milk strikes to
aid in rotating the accumulators, or these wings or rotators may alone be used for
rotating the accumulators.
Dated this 25th day of March 1890.
A. WAHLIN.
CARL J. LUNDSTROM.
THOS. COLLINS.
By Brewer & Son,
Agents.

page_text: COMPLETE SPECIFICATION.
Improvements in Separators for Cream and Butter.
We, ADOLPH WAHLIN, of No. 16, Handtverkargaten, Stockholm, Sweden,
Agent, CARL JOHAN LUNDSTROM, of No. 16, Fleminggaten in said Stockholm,
Mechanic, and THOMAS COLLINS, of Winchester in the State of New Hampshire,
United States of America, 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. :-
Centrifugal separators for cream have been made use of, in which the skim milk
is discharged at a different place from the cream and according to the extent of the
centrifugal action so the cream will be more or less concentrated.
In some cases the cream has been subjected to an agitating operation resulting
from contact with the cream of rotary or stationary agitators or trundles.
Our invention as distinguished from pre-existing devices, relates to the combina-
tion with a revolving separator, of butter accumulators composed of plates or wings
against which the buttery particles are violently projected or come into contact,
and upon which they are detained for the more watery skim milk to pass away,
and the butter particles striking against each other upon the accumulators, adhere
together and produce globules and small masses of butter that are easily separated
from the skim milk.
In the drawings
Fig. 1, is a vertical section of the apparatus in one form employed by us.
Fig. 2, is a sectional plan view of the same and
Figs. 3, 4, 5, 6, 7 and 8, are similar views in slightly modified form.
The centrifugal vessel A, is upon a revolving shaft and its axis may be either
vertical or horizontal; the vessel A, is preferably conical and the milk is supplied
by the pipe B, from any suitable vessel C, or otherwise and the centrifugal action
produces a separation of the skim milk and the cream, the former passing off by
the pipe and the cream being thrown off from the edge of the separator.
The revolving separator may be enclosed in any suitable case and there is a
receiving vessel for the cream and skim milk.
In Fig. 1, a single receiving vessel H, is shown and in Figs. 3 and 7, this vessel
is represented as divided by a partition 2, so that the cream passes into the upper
vessel and the skim-milk into the lower vessel.
The butter accumulators 1, are made with numerous surfaces against which the
buttery particles are projected with the violence due to the centrifugal action and
such buttery particles adhere thereto and to each other sufficiently to form
granules or particles that accumulate until they are thrown off from the surface
of such accumulators.
In Figs. 1, and 2, the accumulators are shown as a series of diagonal blades
or wings 3, 3. pendant from a ring 4, that receives its support from cross-bars
and a collar 5, around the milk supply pipe, and in Figs. 3, and 4, the accumu-
lator surfaces are shown as wings upon separate arbors or shafts 7, supported
within the receiving vessel H, while in Figs. 5 & 6, the accumulator surfaces are
shown as plates between disks on separate pivots 8, supported within the receiving
vessel H.
In both cases the accumulators are free to revolve by the impact of the butter
particles against the surfaces, and this revolving action promotes the efficiency
of the apparatus.
We have represented the wings or accumulators Figs. 1 & 2, as diagonal to the
radii in order that the butter particles striking the surfaces of the wings may
spread outwardly and adhere sufficiently for the succeeding particles to accumulate
by adhering to the first, and the skim milk will run off the accumulators the
most rapidly in consequence of being watery.

page_text: ·
We prefer also to have the butter particles strike the surfaces of the accumulators
higher up than the skim milk and in Fig. 3, there is represented a partition 2, for
separating the butter particles and cream from the skim milk and a spout M for the
skim-milk and a spout N, for the butter particles to pass off.
In all cases the skim milk being the heaviest is thrown off first and striking
against the accumulators will set them in motion, so that the impact of the cream
particles against the surfaces of the accumulators will not be too violent.
If the pipe E for the skim milk extends up higher than the edge from which
the cream is thrown off as shown in Fig. 5, the skim milk will run down upon
the accumulator surfaces and moisten the same sufficiently to prevent the butter
particles adhering too firmly.
The form of device shown in Figs. 7 & 8, is of the general character before
described, except that we provide for giving to the accumulators any desired
amount of agitation.
With this object in view, the shafts 7, may be extended up above the cover l
and be provided with pulleys or spools 11, and driven by a belt or belts to any
suitable driving pulley or wheel, so that the accumulators may also act as agitators
to churn the cream to a greater or less extent and when the accumulators are
within the annular vessel G', the cream can be admitted at one side through the
opening 10, and the buttery particles and butter milk pass off at the other side
by the opening 16, and spout N.
The conical partition 15, serves to direct the butter particles to this spout N, and
the rotators 12, on the shafts 7, are set in motion by the skim-milk as thrown off
from the pipe E, and aid in revolving the accumulators, or these rotators alone may
be employed to rotate the accumulators when the cream requires but a small
amount of agitation.
Having now particularly described and ascertained the nature of our said inven-
tion and in what manner the same is to be performed, we declare that what we
claim is
First. The combination with a centrifugal separating vessel having places at
which the skim milk and cream are delivered, of an accumulator against which the
cream is thrown by the centrifugal action and upon which the butter particles
adhere sufficiently for the skim-milk to separate substantially as set forth.
Second. The combination with a centrifugal separating vessel having cream and
skim-milk deliveries, of butter accumulators composed of a range of plates against
which the butter particles are thrown from the separator and a support for such
accumulators and upon which the same is allowed to revolve by the impact of the
butter particles and skim-milk substantially as set forth.
Third. The method herein specified of separating the butter particles from milk
consisting in exposing the milk to a centrifugal action, throwing off the skim-milk
separately from the cream, and causing the butter particles to strike against and
accumulate upon surfaces around the delivery place for such cream, substantially as
set forth.
Fourth. The combination with the centrifugal separator for cream, of rotary
agitators or accumulators receiving motion from the impact of the skim-milk, or
from separate mechanism, substantially as specified.
Dated this 17th day of December 1890.
BREWER & SON,
Agents.