Year: 1888

page_text: Date of Application, 11th Aug., 1888
Complete Specification Left, 27th Sept., 1888.
Complete Specification Accepted, 30th Nov.. 1888
We, PAUL TREUTLER and PAUL SCHWARZ, both of 80, Dresdenerstrasse, Berlin
S.O., Germany, Engineers, do hereby declare the nature of this invention to be as
follows:-
The invention relates to a method of manufacturing adhesive paste, such as may be
used in the most different branches of industry and consists in mixing vegetable flour
(wheat-potatoe-rice-flour) and water, with a solution of soda, potash and lime with
the addition of mineral acid, and with an eventual admixture of preserving salts.
This adhesive paste is prepared as follows viz:
A certain quantity of water, by weight, is, according to the use to be made of the
adhesive paste, respectively according to the consistency to be obtained, mixed with
vegetable flour, as wheat-potatoe-rice flour in a proportion by weight of 15-20 per
cent. and is then stirred into a more or less stiff, but smooth and even paste.
To this paste I add a mixture of a solution of soda, eventually potash and solution
of lime, the whole being stirred continually; after which I add about 5-7 per cent.
of diluted mineral acid of 4-41° Beaumé in order to destroy any vegetable acids
appearing.
To the mixture thus obtained finally add 10-15 per cent. of preserving salts,
dissolved in water; a gluten is thus obtained, which, compared to other pastes
generally known, has the following advantage:
The adhesive paste prepared according to the above directions, possesses an eminent
adhesive power, which is equal to that of the starch-paste, the arabic-gum and the
paste used by bookbinders and paper-hangers.
Compared to the pastes hitherto known, the new preparation has the great advan-
tage, that it is made cold, and needs not be boiled. It has no smell whatever, and
may be diluted to any degree with cold or warm water. The new paste is air-proof,
as the materials it contains, can never ferment and turn putrid, so that the paste never
turns sour after time.

page_text: By long standing the surface becomes gelatinous and more consistent, but through
the addition of water and by stirring, it may always be brought back again to its
original liquid state.
The new paste may be prepared perfectly opaque, colourless or transparent, and of
any consistency from, the liquid to the solid state; if required, it may also bo stained
by addition of any pigment desired.
The preparation of the new paste is also considerably less expensive than all others
generally known and may be practically used in the most different branches of
industry.
Doted thie 0th day of Anauet 1888

page_text: We PAUL TREUTLER and PAUL SCHWARZ, both of 80 Dresdenerstrasse Berlin
S.O. Germany Engineers 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 :—
The invention relates to a method of manufacturing adhesive paste, such as may be
used in the most different branches of industry, and consists of the following
mixture.
The adhesive paste is composed of a mixture of vegetable flour (wheat,-potatoe,―
rice flour) and water, with a solution of soda, potash and lime with the addition of
mineral acid such as hydrochloric or sulphuric acid, and with an eventual admixture
of preserving salts, as borax.
This adhesive paste is prepared as follows, viz. :
A certain quantity of water, by weight is, according to the use to be made of the
adhesive paste, respectively according to the consistency to be obtained, mixed with
vegetable flour, as wheat, potatoe, rice,-flour in a proportion by weight of
15 to 20 per cent. and is then stirred into a more or less stiff, but smooth and
even pulp.
To this pulp we now add about fifty per cent. of a solution of soda or potash
and solution of lime, the whole being stirred continually; after which we add about
5 to 7 per cent. of diluted mineral acid of 4 to 4° Beaumé such as hydrochloric or
sulphuric acid in order to destroy any vegetable acids appearing.
To the mixture thus obtained we finally add 10 to 15 per cent. of preserving
salts, as borax dissolved in water; an adhesive paste is obtained, which, compared
to other pastes generally known, has the following advantage:
The adhesive paste prepared according to the above directions, possesses eminent
adhesive powers, which equal that of starch paste, gum-arabic and the paste used
by bookbinders and paper-hangers.
Compared to the adhesive pastes hitherto known, the new preparation has the
great advantage, that it is made cold and needs not to be boiled. It has no smell what-
ever and may be diluted to any degree with cold or warm water. The new adhesive
paste is air-proof, because the materials it contains, can never ferment and turn
putrid, so that this adhesive paste never turns sour.
By long standing the surface becomes gelatinous and more consistent, but through
the addition of water and by stirring, it may always be brought back again to its
original liquid state.
The new paste may be prepared perfectly opaque, colourless or transparent, and of
any consistency from the liquid to the solid as required, it can also be stained by
addition of any pigment desired.

page_text: The preparation of the new adhesive paste is also considerably less expensive than
all others generally known and may be practically used in the different branches of
industry (as adhesive paste or varnishing mass).
Having now particularly described and ascertained the nature of our said
invention and in what manner the same is to be performed, we declare that what we
claim is:
1) Adhesive paste made by mixing vegetable flour with water and adding thereto
a solution of soda, potash or lime and a mineral acid as preservative, substantially and
for the purpose as described.
•
Date Deh day of Sep 2000
PAUL TREUTLER.
PAUL SCHWARZ.
By A. Kuhnt & R. Deissler,
38, Alexanderstrasse, Berlin, C., Germany.