Impervious to Air and Water.
Year: 1884

page_text: Impervious to Air and Water.
I, ERNEST DE PASS, of 68 Fleet Street, in the City of London, Fellow of the
Institute of Patent Agents, do hereby declare the nature of said invention for
THE MANUFACTURE AND APPLICATION OF A NOVEL PRODUCT IMPERVIOUS TO AIB
AND WATER, Communicated to me from abroad by Albert Lèbre, of 1, Boulevard
Saint-Denis, Paris, France, Manufacturer to be as follows:-
:
In the specification of a previous patent granted to me on the 5th of Novem-
ber 1883, and numbered 5242, as a communication from said Albert Lèbre,
a process of waterproofing fabrics, leather, skins, cork, and other materials was
described therein.
In the working or carrying out of this process it has been discovered that cotton
and like non-fibrous fabrics treated according to the said process of waterproofing
unite with the waterproofing substance in such conditions that a combination is
produced, whence results quite a novel body identical in all its parts.
This body is capable of various industrial applications, it does not allow air or
water to pass through it, and resists humidity. The substances described in, the
above mentioned specification being mixed together form an impervious body and
are used to treat cotton under the conditions described therein in order to create
the novel body which the inventor terms "Hydrofuge Cotton." However, the
proportions mentioned in the said specification and the temperature specified
therein (90° C) may vary according to the nature, the thickness and the kind of
cotton under treatment.

page_text: Impervious to Air and Water.
I, ERNEST DE PASS, of 68 Fleet Street, in the City of London, Fellow of the
Institute of Patent Agents, do hereby declare the nature of said invention for
THE MANUFACTURE AND APPLICATION OF A NOVEL PRODUCT IMPERVIOUS TO AIR
AND WATER, communicated to me from abroad by Albert Lèbre, of 1 Boulevard
Saint-Denis, Paris, France, and in what manner the same is to be performed, to
be particularly described and ascertained in and by the following statement, that
is to say :-
In the Specification of a previous British Patent, granted to me on the
5th November 1883, and numbered 5242, as a communication from the said Albert
Lèbre, a process of waterproofing fabrics, leather, skins, cork and other materials
was described therein.
In the working or carrying out of this process it has been discovered that cotton,
and like non-fibrous fabrics, treated according to the said process of waterproofing,
unite with the waterproofing substance in such conditions that a combination is
produced, from which results quite a novel body identical in all its parts.
This body is capable of various industrial applications; it does not allow air or
water to pass through it, and resists humidity. The substances described in the
above mentioned specification, being mixed together form an impervious body, and
are used to treat cotton under the conditions described therein, in order to create
the novel body which the inventor terms "Hydrofuge Cotton."
The proportions mentioned in the said Specification, and the temperature
specified therein, (90° C), may however vary according to the nature, the thickness,
and the kind of cotton to be treated.
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
I claim, as communicated to me by my foreign correspondent, is
1. The manufacture of the novel.body or product termed "Hydrofuge " Cotton,
as described.
2. The application of the waterproofing process described in the Specification of
the British Letters Patent No 5242 3, to the treatment of cotton, and like non-
fibrous fabrics, as and for the purpose set forth.
Dateḍ this 4th day of August 1885.