Improvements in Apparatus for Sterilising Milk and other Nutritious Substances.
Year: 1898

page_text: Date of Application, 16th Feb., 1898-Accepted, 30th Apr., 1898
COMPLETE SPECIFICATION.
Improvements in Apparatus for Sterilising Milk and other Nutritious
Substances.
I, EDWARD CARSTENSEN DE SEGUNDO, of 28, Victoria Street, Westminster, in
the County of London, Consulting 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: —
Milk and other nutritious substances are sterilised by heating and cooling,
while the vessels containing them are enclosed in chambers to which no air has
access.
My invention relates to apparatus for conveniently and effectively carrying on
this process, as I shall describe referring to the accompanying drawings.
Figure 1 is a vertical section and Figure 2 is a plan, with cover removed, of a
sterilising chamber according to my invention arranged for sterilising the contents
of bottles, provided with wire fastened stoppers of a known kind. Figure 3 is a
transverse section. Figure 4 is a part longitudinal section and Figure 5 is a part
plan shewing to an enlarged scale the arrangement for fastening the stoppers.
A is the lower part and A¹ the removable cover of the sterilising chamber, in
which a number of bottles B containing the milk or other substance to be sterilised
are placed in parallel rows on plates C carried on girders D, the stoppers S being
placed in the mouths of the bottles but not fixed.
Through a stuffing box in the bottom of A passes a rod E carrying a crosshead F
with arms G from which project upwards pairs of rods H, these rods passing
through holes in the plates C and each pair carrying two guide bars J and a bar K
of trough section, which can be adjusted in height by a wedge and screw. In the
lower part of A, a circular perforated pipe P is carried nearly all round, its ends
being closed, and its middle communicates with two branches having stop-cocks
or valves and R, the one leading from a steam boiler, the other from a water
reservoir or service. From the middle of A leads a discharge pipe with stop-
cock or valve T.
V is a safety valve, U is a thermometer, X is a pressure gauge, and Y is a glass
water gauge which can be shut off by a stop cock.
The charged bottles B being placed in parallel double rows on the plates C,
their mouths being within the guide bars J and the projecting parts W of the
wires for fastening their stoppers being immediately under the sites of the bar K,
the cover A¹ is put on and fixed, the joint being made air tight by suitable packing
between the flanges of A and A¹. Steam is then admitted by which the air is
expelled and the contents of the bottles are heated to about 100° C. After a
certain time, the supply of steam is cut off, and water is admitted until it attains
a level a little below the bottle mouths. To prevent the breakage of the bottles
due to sudden admission of cold water the temperature of the water can at first
When the contents of the
be regulated by the simultaneous admission of steam.
bottles are thus cooled, the water is run off, and steam is again admitted raising
the temperature to about 106° C. After a certain time the rod E is pulled down

page_text: by any convenient mechanism, such as a rack and pinion or lever, and thus the
projecting wires W are all simultaneously pushed down, securely fastening the
stoppers. The supply of steam being now cut off, the bottles are allowed to cool a
little, and then more rapidly cooled by admitting water after running which off,
the cover A¹ is raised and the bottles having their contents sterilised are removed.
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:
Sterilising apparatus substantially as described and illustrated by the drawings.
ABEL & IMRAY,
Agents for the Applicant.