New or Improved Preparation or Composition for Dissolving Boiler Scale, and for Preventing Formation of such Scale.
Year: 1890

page_text: Date of Application, 28th Apr., 1890-Accepted, 31st May, 1890
COMPLETE SPECIFICATION.
New or Improved Preparation or Composition for Dissolving Boiler
Scale, and for Preventing Formation of such Scale.
I, JACOB EFREM of Mariannenstr., Berlin, Commercial representative of the Furstl
Pless'che Collieries, do hereby declare the nature of this invention and in what
manner the same is to be perforined to be particularly described and ascertained in
and by the following statement:—.
This invention relates to a new or improved preparation or composition (herein-
after called composition) for dissolving boiler scale and for preventing the further
formation of such scale. The action of the composition is such as to transform into
mud boiler scale already formed which can then be drawn or blown off from the
boiler, and also, when constantly employed, to prevent any further formation of such
scale.
The now or improved
A composition consists of the following substances in or
COMPLETE SPECIFICATION.
New or Improved Preparation or Composition for Dissolving Boiler
Scale, and for Preventing Formation of such Scale.
I, JACOB EFREM of Mariannenstr., Berlin, Commercial representative of the Furstl
Pless'che Collieries, do hereby declare the nature of this invention and in what
manner the same is to be perforined to be particularly described and ascertained in
and by the following statement :-.
This invention relates to a new or improved preparation or composition (herein-
after called composition) for dissolving boiler scale and for preventing the further
formation of such scale. The action of the composition is such as to transform into
mud boiler scale already formed which can then be drawn or blown off from the
boiler, and also, when constantly employed, to prevent any further formation of such
scale.
The now or
improved ስም composition consists of the following substances in or
about the proportions mentioned, viz. :—
of potato starch.
concentrated lye.
leather glue.
25 parts by weight
25
"2
"
"
"
22
"
"
,,
47
water.
31
"
وو
دو
The starch is first dissolved in cold water, and then stirred in boiling water until
the whole has assumed the consistency of thick gruel or porridge. When this mass
has become cold, the concentrated lye is poured upon it, and the whole is well
stirred up. The glue, previously soaked or softened in cold water, is boiled with the
water which is stirred up with the starch as hereinbefore mentioned.
The composition thus prepared is used as follows:-
To remove boiler scale already formed a suitable quantity say about twenty (20)
grammes of the composition for every nine (9) square metres of heating surface is
added daily to the boiler until the scale is removed.
For preventing further formation of scale, a suitable quantity of the composition
say about fifteen (15) grammes for every nine (9) metres of heating surface is dissolved
in hot water, and added daily to the feed water supplied to the boiler. When the
boiler scale has been removed, the composition need be added but once per week, to
prevent the further formation of scale.
The composition hereinbefore described is quite free from acid, so that it does not
injuriously affect the boiler shell and other heated parts, or the packing, and since
the composition is completely dissolved by water, it can also be employed in water
for use in dye-works, breweries, and all works which employ the steain direct.
Having now particularly described and ascertained the nature of the said inven-
tion and in what manner the same is to be performed I declare that what I
claim is :-
The herein, described composition for dissolving boiler scale and for preventing
formation of such scale, the said composition being prepared by mixing together in
the manner specified potato starch, concentrated lye, leather glue and hot water in or
about the proportions stated, for use as set forth.
D: 50th use of Aunil 1900.
J. EFREM.
Per L. W.