An Improved Apparatus for Purifying Milk and other Liquids.
Year: 1895

page_text: Date of Application, 27th M.r., 1895-Accepted, 27th Apr., 1895
COMPLETE SPECIFICATION.
An Improved Apparatus for Purifying Milk and other Liquids.
We, HEINRICH REIN and FRITZ
LÜBBE Junior, both of Schwerin,
Mecklenburg in the Empire of Germany, Locksmith and Merchant respectively,
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 has for its object an apparatus for purifying milk from any
impurities such as hair, dirt, and the like in a rapid and simple manner. The latest
researches by experts on the artificial feeding of children have shown that the
bacteria in milk are not so deleterious in children's food as are the impurities, or
dirt from the udder and the stall, and other unavoidable admixtures, which fall
into the milk during the process of milking, and which are not removed by the
usual straining of the milk.
In order therefore to thoroughly remove in the shortest time these impurities
from large quantities of milk, the apparatus hereinafter described is employed.
Two forms of construction of the same are shown on the accompanying drawing.
Figure 1 is a vertical section through one form of purifier in which the whole
case revolves.
Figure 2 a vertical section through a modified form of purifier in which the
outer case remains stationary and only the strainer revolves.
A bottom plate with a casing and a cover is arranged on a spindle a,
Figure 1, by means of a supporting disc h. A cone g with a truncated cone i is
also fixed on the bottom plate b, which truncated cone presses a second cover
which is perforated on its edge, tightly on to the cover or lid f by means of a
nut k. In the vessel formed by the parts be and there are arranged two or more
sheet-metal strainers, or sieves, with various perforations, that is an inner casing d
with suitably sized holes and a sheet-metal ring e with somewhat larger holes.
gauze strainer e¹ is fixed round this latter ring e. The number of sieves may be
selected to correspond to the extent of the impurities. The holes in the cover
are covered by a horizontal gauze sieve e¹¹.
A
j
The milk is inserted at i, comes on the outer surface of the cone g and passes
through the openings v into the apparatus. With two or three hundred revolutions
the milk is successively forced through the sieves d and e and the gauze strainer e¹,
and comes out between e¹ and as purified milk. The milk may then be let off
preferably from the casing c.
Another form of construction is shown in Figure 2; here, the outer casing c¹ is
fixed on a suitable stand . The spindle a' is connected with the bottom plate x,
and this latter in turn with the separate sieves by means of a cone g' and truncated
cone by a screw cover n. Between the bottom plate & and the cover n there are
several circular sieves sr and q. The two latter sieves are surrounded with fine
gauze strainers and 9, the width of mesh of which diminishes in fineness
towards the outermost strainer, so that q' is the finest gauze strainer.
The milk entering above as before at c² must successively pass by the opening t
through the sieves and gauze strainers. After a suitable centrifugalling with a
number of rotations as before, the milk is discharged purified between q¹ and c¹
and may be let off at c. The cover p closes tightly the whole casing e.
The
sieves srq are tightly washered on the bottom plate x by means of the indiarubber
plate s

page_text: 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 :-
:-
1. An improved centrifugal apparatus for purifying milk and other liquids
having sieves (de) of various sized mesh, and characterized by the liquid to be
purified being first distributed over a cone (g) and then forced by centrifugal action
through the sieves and finally driven through a gauze strainer (e) which frees the
liquid from all impurities, substantially as herein before described and illustrated.
2. An improved centrifugal apparatus for purifying milk and other liquids,
comprising a rotatable drum having its walls composed of a series of annular
concentric sieves (srq) of different meshes, and gauze strainers (711), a central
cone-shaped distributor (g¹) on to which the liquid to be treated is fed and a
stationary casing c enclosing the drum and adapted to receive the purified liquid,
substantially as described and illustrated.
Dated this 26th day of March 1895.
LLEWELYN JONES,
Of 5, South Crescent Chambers, Liverpool, Agent for the Applicants.