A Process of Manufacturing a New Substance for Removing Incrustation and other Sedimentary Deposits Particularly from Steam Boilers and for Cleaning other Vessels.
Year: 1889

page_text: Date of Application, 4th Apr., 1889
Complete Specification Left, 24th July, 1889-Accepted, 21st Sept., 1889
PROVISIONAL SPECIFICATION.
A Process of Manufacturing a New Substance for Removing
Incrustation and other Sedimentary Deposits Particularly from
Steam Boilers and for Cleaning other Vessels.
I MARTIN VAN Look of 147 Alleestrasse, Barmen in the Empire of Germany
Manufacturer do hereby declare the nature of this invention to be as follows:-
:-
When starch is treated hot with a solution of caustic soda a gelatinous mass
similar to soft soap and soluble in water is produced on cooling, which substance has
in a high degree the property of detaching and dissolving the solid and particularly
the stone-like deposits such as scale or incrustation produced on the walls of steam
boilers and boiling vessels or apparatus whether of metal glass or porcelain. By the
use of this substance the incrustation. will be precipitated partly as a pulverulent
sediment and partly as loose and detached pieces and lumps on the bottom of the
apparatus. The detaching of the scale and other stone-like deposits is effected without
injuring in any way the material (whether of metal, glass, porcelain, and the like) on
which the deposit has been formed.
The new product of this invention is in general particularly suitable for cleaning
metals, the excess of alkali not being so considerable, that a solution of the substance
will attack metallic, vegetable and animal substances, moreover in cleaning the vessels
by boiling with a solution of the said substance no perceptible odour is produced.
The new product may be dyed with any suitable innoxious coloring matter.
Dated this 4th day of Anri 1909.
Dated GITIS SEGLI UPLY OI A DTH 1007
M. VAN LOOK.
By A. M. & Wm. Clark,
53, Chancery Lane, London, Patent Agents.
COMPLETE SPECIFICATION.
A Process of Manufacturing a New Substance for Removing
Incrustation and other Sedimentary Deposits Particularly from
Steam Boilers and for Cleaning other Vessels..
I, MARTIN VAN LOOK, of 147 Alleestrasse, Barmen, in the Empire of Germany,
Manufacturer, 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 :-
When starch is treated hot with a solution of caustic soda a gelatinous mass similar
to soft soap and soluble in water is produced on cooling, which substance has in a
high degree the property of detaching and dissolving the solid and particularly the
stone-like deposits such as scale or incrustation produced on the walls of steam boilers
and boiling vessels or apparatus whether of metal, glass, or porcelain. By the use
of this substance the incrustation will be precipitated, partly as a pulverulent sediment
and partly as loose and detached pieces and lamps, on the bottom of the apparatus.
The detaching of the scale and other stone-like deposits is effected without injuring
in any way the material (whether of metal, glass, porcelain, and the like) on which
the deposit has been formed.
The new product of this invention is in general particularly suitable for cleaning
metals, the excess of alkali not being so considerable that a solution of the substance
will attack metallic, vegetable, and animal substances; moreover in cleaning the
vessels by boiling with a solution of the said substance no perceptible odor is
produced.

page_text: According to the nature of the substances to be detached, from 5% to 25% of
starch (with the addition of sufficient caramel or other innoxious coloring matter) is
treated with hot water by blowing in steam. To the uniform intimate mixture
produced by this means, a corresponding quantity of from 5% to 25% of caustic
soda (NaOH) is added whereby, on cooling, a gelatinous mass soluble in water is
produced.
The combination remains unaltered when it is dissolved in pure water; but when
lime salts, and particularly sulphate of lime which is so dangerous on account of its
liability to form scale, or any other similar mineral compound is contained in solution
in the water, the lime, the ferric oxide, and other similar bases are precipitated and
eliminated as a muddy mass.
The novel substance is suitable therefore not only for cleaning vessels and
particularly for detaching incrustations already formed, but also for preventing the
formation of scale or incrustations.
Having now particularly described and ascertained the nature of the said
invention and in what manner the same is to be performed, I declare that what
1 claim is;
The herein described process of manufacturing a new compound for removing and
preventing incrustation or scale in steam boilers and for cleaning other vessels, which
process consists in. dissolving from 5% to 25% of starch in hot water by blowing in
steam and by adding to the mixture corresponding quantities (from 5% to 25%) of
caustic soda, substantially as set forth.
UNIS
I day of buy t
MARTIN VAN LOOK.
By A. M. & Wm. Clark,
53, Chancery Lane, London, Patent Agents.