An Improved Apparatus for Boiling Milk.
Year: 1899

page_text: Date of Application, 5th Jan., 1899-Accepted, 22nd Apr., 1899
An Improved Apparatus for Boiling Milk.
I, MARIUS FREDERIK KROGH, of Rothenkrug, in the German Empire, Manu-
facturer, 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 boiling milk to prevent the boiling over
of the latter. This apparatus has the advantages of great convenience in manipu-
lation and cheapness, as compared with other devices designed for the same
purpose.
In order that this invention may be the better understood, I now proceed to
describe the same with reference to the accompanying drawings and to the letters
and figures marked thereon. Like letters refer to like parts in the various
figures.
Figure 1 is a vertical section through a vessel provided with my device, and
Figure 2 is a partial plan thereof.
The inner side of the vessel g in which the milk is boiled must be smooth,
either entirely or for the greater part thereof, so that a piston like partition n
can smoothly move up and down therein. The partition has holes h.
A truncated funnel r rises from the middle of the partition n. The funnel r
narrows upwards and is open at top and bottom to allow the milk to ascend therein
and overflow at the top, if it should rise too much. The milk which has over-
flowed ascending through the central funnel r returns to the lower part of the
vessel g through the perforations h in the partition n, and thence over the lip
of a very flat inverted conical funnel or tray, arranged below the partition n, which
is fitted as a baffle plate under the holes à to prevent the rising milk from con-
flicting with the falling milk and this tray is easily removed and is provided
with a handle b. The milk flows down on this funnel or tray u and collects in
the middle whence it returns over the outer edge into the lower part of the
vessel g.
The central position of the tray or inverted funnel u is ensured by an upright
rim i provided on it fitting into the central orifice of the partition n.
The action of this apparatus is found to be excellent, one of the principal
features being that the device can rise and fall in the vessel according as to
whether the milk hoils more or less. When inserted the device sinks directly
on to the level of the milk. and yielding gradually to the pressure of the boiling
milk prevents the boiling over of the latter over the rim of the vessel g.
Having now particularly described and ascertained the nature of this
invention and in what manner the same is to be performed I declare that what
I claim is:
1
Apparatus to prevent the boiling over of milk consisting of a perforated piston
like partition adapted to smoothly rise and fall on the inside of the boiling vessel,
a truncated upper funnel narrowing upwards open at top and bottom, and of a

page_text: flat conical lower funnel or tray shelving downwards, in order that the milk
rising in and overflowing the truncated funnel may return into the lower part
of the boiling vessel through the perforated partition and shelving funnel the
whole device resting upon and rising with the milk substantially as described.
Dated this 5th day of January 1899.
FELL & JAMES,
Agents for the Applicant.