Apparatus for Preventing the Running Over of Liquids and the like which Form a Skin or Film on the Top while Boiling.
Year: 1888

page_text: Apparatus for Preventing the Running Over of Liquids and the
like which Form a Skin or Film on the Top while Boiling.
I, ARTHUR WOLF of Kurstrasse 34 Berlin in the Kingdom of Prussia and German
Empire, Manufacturer do hereby declare the nature of my said 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 providing a means of escape for the steam
generated while boiling such liquids as milk, tar, glue, varnish, soap and other fluid
or semi-fluid substances which form a skin or scum on the top thereby preventing
such substance from running or "boiling over "the containing vessel.
This object I attain by means of the apparatus shewn in the accompanying
drawings in which Fig. 1 sheet 1 represents a section of a vessel for culinary
purposes fitted with an apparatus constructed according to my invention. Fig. 2
sheet 1 plan of same and Fig. 3 sheet 1 detail of same hereafter referred to. Fig. 1
sheet 2 shews section of a similar apparatus on a larger scale suitable for manufacturing
purposes and Fig. 2 sheet 2 a plan of the same.
According to this invention I provide a tube or tubes a sheet 1 formed at the
bottom into a series of knives, this tube is attached to adjustable arms 6 (whereof one
is shewn in detail at Fig. 3 sheet 1) by means of short links c pivotted to the said
arms and the tube a. The tube a should be about 10 millimetres above the level of
the liquid to be boiled this is effected by means of the adjustable arms b. When the
liquid B boils, the skin C is raised by the steam pressure accumulated underneath till
it comes in contact with the knives of the tube a which cut it and so allow the steam
to escape.
At sheet 2 is shewn a similar apparatus on a larger scale suitable for manufacturing
purposes such as boiling tar, soap, glue, varnish preserves and the like.
al is the principal tubo round which a number of smaller tubes a" are arranged
according to the size of the apparatus, the tubes are extended into a funnel shape at
the bottom and formed into or fitted with knives and mounted in a rigid frame b
attached to the pan by means of the hinges and spindle n. In order to allow of the
pan being emptied or refilled I provide a hand lever h keyed to the spindle n by
means of which the frame b is raised from the pan.

page_text: 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
1st. In an apparatus for preventing liquids and the like from boiling over, the use
of a tube fitted or formed with knives substantially as described.
2nd. In an apparatus for preventing liquids and the like from boiling over the
combination of the adjustable tube a fitted or formed with knives, arms 6 and
links e substantially as described and shewn at sheet 1 of the accompanying drawings.
3rd. In an apparatus for preventing liquids and the like from boiling over the
combination of the tubes a' a" formed into a funnel shape and fitted with knives at
the bottom and frame b or its equivalent, operated by the lever / substantially as
described and shewn at sheet 2 of the accompanying drawings.
4th. The improved apparatus substantially as described and shown in the
accompanying drawings.
T
1000
BROWNE & Co.,
Agents for the Applicant.