Improvements in-Apparatus for Sterilizing Milk and other Liquids.
Year: 1897

page_text: Date of Application, 31st Aug., 1897-Accepted, 23rd Oct.,
1897
COMPLETE SPECIFICATION.
Improvements in-Apparatus for Sterilizing Milk and other Liquids.
I, ERIK GUSTAF NICOLAUS SALENTUS, of Kraftriket Alabno, in the Kingdom of
Sweden, 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:
This invention relates to apparatus for sterilizing any liquid, but the apparatus
is especially adapted for milk, serving as nourishment for infants. It is therefore
provided with heating and cooling arrangements as well as with an arrangement
for heating the bottles, before the sterilized milk is tapped into them.
The apparatus consists of a large compartment for the bottles, through which
compartment ascends a heat passage. Above this passage is located the vessel,
wherein the milk is heated. Above the first mentioned compartment, which is
annular in consequence of the heat passage, is a cooling vessel, from which the
milk is tapped into the bottles, which are placed under the cooling vessel and which
may successively be carried under a cock in the bottom of said vessel by turning
the bottom, on which the bottles rest.
In the accompanying drawing
Figure 1 shows a vertical section of the apparatus,
Figure 2 is an elevation.
Figure 3 is an horizontal section of the same.
Figure 4 is a plan of the cooling vessel,, and
Figures 5 and 6 show details.
The annular compartment A for the bottles is formed between an outer
cylinder B, resting on a base C, and an inner cylinder D, which is connected to a
flange E, fixed to the cylinder B. Under the cylinder D there is a lamp For the
like, the cylinder thus forming the heat passage. At the top, the cylinder D
has a loose extension G, on which rests the narrower vessel H by the aid of a
ring I provided with openings I¹. The flange E, forming the top of the annular
compartment A, supports the cooling vessel K, which also is annular, this vessel
having an inner compartment L for the cooling agent. The cooling vessel K;
which is hermetically closed, communicates with the vessel H through a cock M.
The bottles O, introduced into the compartment A through a door N, rests on a
revoluble bottom P, which may be put in motion by means of a lever Q the
pawl R of which engages in a toothed rack S on the lower side of the bottom P.
By this arrangement the bottles may successively be carried under the cock T in
the bottom of the vessel K, the key T₁ of this cock protruding through the
cylinder B. Through a nane in this cylinder the placing of the bottles straight
below the nozzle of the cock T may be controlled. The vessel H contains an
agitator H', which is mounted on a shaft H³, resting in a small step bearing H
aid ascending through the cover of the vessel H. Above this cover the shaft H
carries a wing wheel or fan wheel H (see Figure 6). This wheel is acted upon
and rotated by the hot air, ascending through the openings I¹, the agitator thus
being rotated continuously. The milk being sufficiently heated for being

page_text: sterilized, is tapped from the vessel H, which is either filled at once or continuously
fed with milk through a suitable pipe V, into the vessel K, where it is cooled
without coming into contact with the atmosphere. Also in the compartment A
the temperature is sufficiently high for killing all bacteria and the like, which
may be in the air, in the bottles, or on the plugs or stoppers introduced into the
compartment A. After a bottle has been filled, a plug or stopper is introduced in
If it is desired to close the bottles without opening the door N, a
vertical tube containing a number of such plugs or stoppers may be arranged to
descend past or through the vessel K, the plugs or stoppers being successively
pushed down through this tube. By this means the undermost plug or stopper
may be introduced into the bottle, carried straight under the tube by turning the
bottom P.
the same.
Having now particularly described and ascertained the nature of my said
invention and in what manner the same is to be performed, I declare that what
I claim is:
1. Apparatus for sterilizing liquids, especially milk, intended to be tapped into
bottles, characterized by a compartment (A), containing the bottles and through
which ascends a comparatively wide heat passage (D), above which is located the
vessel (H), in which the milk is heated, and by a closed cooling vessel (K) located
above the compartment (A) and into which the milk is drawn from the heating
vessel (H), situated higher up, said vessel (K) having in its bottom a cock (T) for
the tapping of the milk into the bottles (0) placed under the vessel (K) in the
compartment (A).
2. In the apparatus, characterized in Claim 1, the arrangement in the
compartment A of the bottom (P) on which the bottles rest said bottom being
revoluble and provided on its lower side with a toothed rack (S) in which engages
a pawl (R) or the like on a lever or arm (Q), with the object of successively
carrying the bottles under the cock (T) in the bottom of the cooling vessel (K)
by turning the bottom (P).
3. In the apparatus, characterized in Claim 1, the arrangement of a loose
extension (G) on the top of the passage (D), which extension is wider than the
heating vessel (H), placed in the same and by means of a ring (L) resting on the
upper edge of the same, and of an agitator (H), mounted in the vessel (H),
the shaft (H) of this agitator protruding through the cover of the vessel (H) and
carrying a wing or fan wheel (H), which is rotated by the current of air or gas,
ascending through the extension (G) and through openings in the ring (I), for
the purpose of keeping the agitator in rotation by the aid of the wing or fan
wheel.
Dated this 21st day of
1094
HASELTINE, LAKE & Co.,
45 Southampton Buildings, London, W.C., Agents for the Applicant.