Year: 1896

page_text: Date of Application, 30th Dec., 1896
20th Cent 1907 Accented 6th Nov
1897
I MAURICE LEWIN, Manufacturer of 109 Euston Road in the County of London
do hereby declare the nature of this invention to be as follows:-
This invention relates to improvements in the manufacture and ornamentation
of soft India Rubber goods, such as tobacco pouches, toys, finger stalls, sheets
and so forth.
The object of this invention is to produce such goods with a grained or veined
surface which gives the same a novel and handsome appearance.
In carrying this invention into practice I prepare a solution of India Rubber
in the usual mauner, and dip into it a mould so as to gather thereon a layer of
suitable thickness, or the requisite thickness may be obtained by repeated dipping,
this layer is thoroughly dried as usual.
Instead of producing the article by dipping I may take an article already
moulded, or sheet rubber, or any article inade of rubber and subject. it to the
treatment herein after described.
The article produced by dipping or otherwise, being quite dry, or in that
condition in which ordinarily it is vulcanized, I proceed as follows; I again
submerge the article in a solution of India Rubber and leave it therein for say
15 (fifteen) to 30 (thirty) minutes or even longer. I then withdraw it and allow
the excess of rubber to drain off. It will then be found that the article instead
of being smooth, as would be the case when the ordinary process of manufacture
is followed; presents a finely "grained" or "veined" surface resembling
that of some classes of leather approaching that of crocodile skin.
In some cases I vaiy the process as follows: After immersion for about
15 (fifteen) to 30 (thirty) minutes as aforesaid I with draw the mould and after
the excess of solution has run off and before the article on the mould dries I
detach a small part of the rubber-pellicle from the mould so that air may find
access between the layer of rubber and the surface of the mould.
It will then be seen that the whole surface of the rubber is gradually and
rapidly puckered up; and these puckers remain when the article is dried; I then
allow the article to dry and vulcanize as usual. This results in a "grain" similar
to that produced as above described but coarser.
In either case the goods produced are not only very handsome in appearance
but, in addition, are stronger than goods of the same thickness made by the ordinary
process.
Dated this 20th December 1806
BERNHARD DUKES,
Agent for the Applicant..

page_text: Improvements in the Manufacture of India Rubber Goods.
I, MAURICE LEWIN, Manufacturer of 109 Euston Road in the County of London,
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:-
This invention relates to improvements in the manufacture and ornamentation
of India Rubber goods such as tobacco pouches, toys, finger stalls, sheets and
so forth.
The object of this invention is to produce such goods with a grained or veined
surface which gives the same a novel and handsome appearance.
In carrying this invention into practice I prepare a solution of India Rubber
in the usual manner, and dip into it a mould so as to gather thereon a layer of
suitable thickness, or the requisite thickness may be obtained by repeated dipping,
this layer is thoroughly dried as usual.
Instead of producing the article by dipping I may take an article already
moulded, or sheet rubber, or any article made of rubber and subject it to the
treatment hereinafter described.
The article produced by dipping or otherwise, being quite dry, or in that
condition in which ordinarily it is vulcanized (or an article already vulcanized),
I proceed as follows: I again submerge the article in a solution of India Rubber
and leave it therein for say 1 (one) to 30 (thirty) minutes or even longer. I then
withdraw it and allow the excess of rubber to drain off. It will then be found
that the article instead of being smooth, as would be the case when the ordinary
process of manufacture is followed, presents a finely "grained" or "veined"
surface resembling that of some classes of leather, approaching that of crocodile
skin. It is then vulcanized as usual.
In some cases I vary the process as follows: After immersion for about
5(five) to 30 (thirty) minutes as aforesaid I withdraw the mould or article and after
the excess of solution has run off and before the article on the mould dries I
detach a small part of the rubber-pellicle from the mould or article so that air
may find access between the layer of rubber and the surface of the mould, or the
original surface of the finished article and the pellicle produced by the last
immersion.
It will then be seen that the whole surface of the rubber is gradually and
rapidly puckered up; and these puckers remain when the article is dried, I then
allow the article to dry and vulcanize as usual. This results in a grain similar
to that produced as above described but coarser.
In either case the goods produced are not only very handsome in appearance
but, in addition, are stronger than goods of the same thickness made by the ordinary
process.
Having now particularly described and ascertained the nature of my said
invention, and in what manner the same is to be performed, I declare that what
I claim is: .
1. A method of manufacturing rubber goods having a "veined" or "grained"
surface consisting in the immersion of a dry article of India Rubber (either before
or after vulcanization) in a solution of India Rubber, allowing the same to drain
and dry, and thien vulcanizing the same.
"
2. A method of manufacturing rubber goods having a "veined" ог grained"
surface consisting in the production of a pellicle by immersion in India Rubber

page_text: solution and loosening the pellicle so that air may be admitted between the pellicle
and the surface beneath the same, followed by drying and vulcanization in the
usual manner.
Dated this 30th day of September 1897
BERNHARD DUKES,
226 High Holborn, London, W.C., Agent for the Applicant.