Improvements in the Treatment or Preparation of Paper, Cardboard, Paper-pulp, Papier Maché, and other Fabrics and Metals, to Render the same Impervious to the Action of Acids, Water, Air, Mineral Oils, and other Liquids or Gases.
Year: 1888

page_text: Date of Application, 19th Junė, 1888
Complete Specification Left, 19th Mar., 1889
Complete Specification Accepted, 20th Apr., 1889
Improvements in the Treatment or Preparation of Paper, Cardboard,
Paper-pulp, Papier Maché, and other Fabrics and Metals, to
Render the same Impervious to the Action of Acids, Water, Air,
Mineral Oils, and other Liquids or Gases.
t
I, CHARLES DIXON ARIA of 175 Piccadilly in the County of Middlesex Lamp
Manufacturer, do hereby declare the nature of said Invention to be as follows:-
My invention relates to improvements in the treatment or preparation of paper,
cardboard, paper pulp, papier maché and other fabrics, and metals, to render the
same impervious to the action of acids, water, air, mineral oils, and other liquids
or gases.
I proceed to describe my Invention as applied to the treatment or preparation of
cardboard, paper, paper pulp, or like fabrics or materials. I first prepare a bath or
mixture of bisulphide of carbon and gutta percha, sufficient bisulphide of carbon
being used to dissolve the gutta percha and to form a solution. I then immerse the
cardboard, or like fabric or material, in the said solution and leave it therein for say
12 hours, or more. At the expiration of this time the material is removed and
allowed to dry, preferably in a well ventilated room, for say 2 hours, after which it is
pressed by any suitable means so as to cause the guttapercha to form a solid coat,
film or cover upon the material. The material after being subjected to pressure is
again allowed to dry, say for 22 hours more, and the entire process, as above described,
is again repeated and the material is ready for use.
Paper, cardboard, paper pulp or like fabric thus treated will be found especially
useful in certain electric batteries for separating the exciting solutions or liquids.
In treating paper pulp, the pulp is mixed with the solution and then pressed
and dried.
As regards the treatment or preparation of metals I proceed in the same manner
as that above described with reference to cardboard &c., but I omit the pressing
operation. This part of my invention is especially applicable to the insulation of
wire for electrical purposes.
D
101 1
CT1000
ERNEST DE PASS,
68, Fleet Street, London,
Agent for the Applicant.

page_text: Improvements in the Treatment or Preparation of Paper, Cardboard,
Paper Pulp, Papier-maché, and other Fabrics and Metals, to
Render the same Impervious to the Action of Acids, Water, Air,
Mineral Oils, and other Liquids or Gases.
I, CHARLES DIXON ARIA, of 175 Piccadilly, in the county of Middlesex, Lamp
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, that is to say:―
My invention relates to improvements in the treatment or preparation of paper,
cardboard, paper pulp, papier-maché, and other fabrics, and metals, to render the
same impervious to the action of 'acids, water, air, mineral oils, and other liquids
or gases.
I proceed to describe my invention as applied to the treatment or preparation of
cardboard, paper, or like fabrics or materials. I first dissolve gutta-percha with a 1
sufficient quantity of bisulphide of carbon, and when the gutta percha becomes dis-
solved I add gumlac, shellac, or one of the gums of the copal family, after having
dissolved one of them in spirits of wine. I then place the cardboard, etc. into the
solution thus formed, for say 12 hours, or more. At the expiration of this time
I remove the material and allow it to dry, preference being given to a well 1
ventilated room. In this room it is left for say two hours, by which time the
bisulphide of carbon has evaporated, and the material is then pressed, by any suitable
means, so as to cause the gutta-percha to form a solid coat, film, or covering upon
and in the pores of the material, whilst the shellac, or gumlac, etc. causes the gutta-
percha to firmly adhere to the surface and within the pores of the same.
This 2
material, after being thus subjected to pressure, is again allowed to dry, say for
.22 hours more, and I repeat the entire process, as above described; the material is
then ready for use.
Paper, cardboard, paper pulp, or like fabric treated by this process will be found
especially useful in certain electric batteries wherein it is desired to separate the 2
exciting solutions or liquids.
In treating paper pulp, or papier-maché, the pulp is mixed up with the solution and
then pressed and dried; the result, as far as the paper pulp is concerned, being to form
one material.
As regards the treatment or preparation of metals, I proceed in the same, manner a
as that above described with reference to cardboard, or paper, omitting the pressing
operation. This part of my invention is especially applicable to the insulation of wire
for electrical purposes, it being only necessary to pass the wire through the bath when
it will issue therefrom with a covering, coating, or film thereon. If desired, the coated
or covered wire may be again passed through the bath.
3

page_text: Having now described my invention and in what manner the same may be
performed, I claim :-
1. The herein described process for treating or preparing paper, card board, and like
fabrics, or materials, as and for the purposes set forth.
2. The herein described process for treating or preparing paper pulp or papier-
maché, as and for the purposes described.
8. The herein described process for treating or preparing metals, as and for the
purposes set forth.
ERNEST DE PASS,
68, Fleet Street, London,
Agent for the Applicant.