Improvements in Waterproof Fabrics, Garments, Wrappers, and Coverings, and in the Process and Composition for Manufacturing the same.
Year: 1894

page_text: Date of Application, 7th Sept., 1894-Accepted, 13th Oct., 1894
CORT DELE DI CITICATION.
Improvements in Waterproof Fabrics, Garments, Wrappers,
and Coverings, and in the Process and Composition for
Manufacturing the same.
We, EUGEN HORNUNG, Assistant Advocate, of XVIII, Wienerstrasse, 76, and
RUDOLF LIEBL, Government Official, of XVIII, Herrengasse, 70, both of
Vienna, in the Empire of Austria, 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 :-
Our invention relates to waterproof fabrics, garments, wrappers and coverings
and to the process and composition for manufacturing the same.
The invention which forms the subject of former Letters Patent granted to us
dated May 1st 1894 No. 8648 refers to waterproof materials composed of paper
or textile fabrics, or of the two together, which are treated with two successive
coats. The first of these consists of glue, or a substitute for glue, preferably
precipitated in an insoluble form from a solution of the same, with glycerine,
treacle, syrup, fats or oils, and the second of oil or spirit varnish.
The present invention relates to a modification of the composition of the
material of which the first coat is composed, and of the products manufactured by
means of this new coating substance, such modification being for many purposes
advantageous.
If, instead of the above mentioned additions to the glue which has been
precipitated from its solution in an insoluble form, substance be added which renders
the coating substance pliable, such as caoutchouc, gutta percha, or substitutes for
those substances, such as balata or getah-lahoe, or oil rubber, there results a coating
mass which may be used in the same way as the previous one, and is for many
purposes more advantageous.
The quantity of caoutchouc, gutta percha, or oil rubber, which must be added to
the insoluble precipitated glue, depends upon the degree of flexibility which it is
desired to impart to the finished product. It must not amount to less than 5% of
the glue-mass if it is to have the effect aimed at.
For certain purposes the substratum, of paper textile fabric, or these two in
combination, may be left without the second coating of oil or spirit varnish, still
remaining impermeable to water.
To make the layer thicker any substance such as cork, or rubber waste, or resin,
may be added to the coating mass.
The substrata of paper or textile fabric coated with the mass described may be
combined in any desired number by pressing or rolling them together, to manufac-
ture waterproof material of greater resisting power.
A loose fibrous material may be interposed between the sheets of paper or textile
fabric before their combination, to strengthen the material.
The sheets thus provided with the first coat, either by spreading or impregna-
tion, may if necessary, receive a second coat of oil or spirit varnish when dry.
Colouring materials may be added as required, either to the first or to the
second coat, or the finished material may be treated by passing it between grooved
rollers or by other known methods for the purpose of impressing a pattern upon it.
For making articles of attire, coverings, etc. the pieces of material are united by
sewing or sticking them together.

page_text: Having now particularly described and ascertained the nature of our said inven-
tion and in what manner the same is to be performed, we declare that what we
claim is :-
1. A process for manufacturing waterproof materials made of paper or textile
fabrics, consisting in coating or impregnating the material with a mass composed
of a mixture of glue precipitated in an insoluble form from its solution, or of a
substitute for glue, with caoutchouc, gutta percha (or substitutes for gutta percha
or caoutchouc such as, balata or getah lahoe) or oil rubber, and drying the
fabric treated as described (previously combining layers of it if required with or
without the interposition of a loose fibrous material between such layers) sub-
stantially as hereinbefore described.
2. A process for manufacturing waterproof materials from paper or textile
fabrics, or both in combination, consisting in the application of a layer of oil or
spirit varnish upon the fabrics treated in the manner claimed in Claim 1,
substantially as hereinbefore described.
3. A coating or impregnating composition for carrying out the described process,
consisting of a mixture of glue precipitated from its solution in an insoluble form
(or glue substitute) with caoutchouc, gutta percha, or substitutes for caoutchouc
or gutta percha (balata, or getah lahoe) or oil rubber, substantially as herein-
before described.
4. Waterproof fabrics manufactured by the process described in Claims 1 and 2,
substantially as described.
5. Articles of clothing, coverings, packings, etc. made of waterproof materials
of the kind described in Claim 4, substantially as set forth.
Dated the 7th day of September 1894.
G. F. REDFERN & Co.,
4, South Street, Finsbury, London, Agents for the Applicants.