Improvements in the Manufacture of Waterproof Fabrics.
Year: 1896

page_text: Date of Application, 12th May, 1896
Complete Specification Left, 11th Feb., 1897-Accepted, 8th May, 1897
PROVISIONAL SPECIFICATION.
Improvements in the Manufacture of Waterproof Fabrics.
I, FREDERICK WEAVER OLIVER of 40 King Street, Cheapside, in the City
of London, Lithographer, do hereby declare the nature of this invention to be
as follows:-
Various fabrics such as stockinette and the like are too elastic and porous to
allow of a thin waterproofing film of celluloid being formed upon them. I effect
the waterproofing of such fabrics with a thin film of celluloid by first coating over
the surface of a suitable transfer paper with a celluloid solution and so forming a
thin film of celluloid over the transfer paper.
Afterwards I apply solvent to the surface of the film and apply it to the surface
of the fabric to be rendered waterproof-so uniting the two together-and when
this has been done I wash away the transfer paper.
If desired I subsequently apply solvent to the surface of the film and apply to
it a second thickness of fabric so obtaining a thin waterproof film of celluloid
coated on both sides with stockinette or like fabric without in any way interfering
with the texture or feel of the fabric.
F. W. OLIVER.
Improvements in the Manufacture of Waterproof Fabrics.
I, FREDERICK WEAVER OLIVER, of 40 King Street, Cheapside in the City
of London, Lithographer, 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 :-
Various fabrics, such as stockinette and the like, are too elastic and porous to
allow of a thin waterproofing film of celluloid, or nitro-cellulose, dissolved by the
aid of camphor in a spirituous solvent, being formed upon them. I effect the
waterproofing of such fabrics with a thin film of celluloid by first coating over
the surface of a suitable transfer paper with a celluloid solution and so forming a
thin film of celluloid over the transfer paper.
Afterwards I apply solvent to the surface of the film and apply it to the surface
of the fabric to be rendered waterproof-so uniting the two together-and when
this has been done I wash away the transfer paper.
Before applying the film to the fabric it is better to wash over the surface of
the latter with a very dilute solution of celluloid.
In the case of very thin fabrics however a film should first be applied and then
be washed over with the dilute solution before applying the second film.
If desired I subsequently apply solvent to the surface of the film and apply to
it a second thickness of fabric so obtaining a thin waterproof film of celluloid
Price 8d3

page_text: coated on both sides with stockinette or like fabric without in any way interfering
with the texture or feel of the fabric.
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 :-
The process of waterproofing fabrics with celluloid consisting in spreading a
film of celluloid solution on transfer paper and transferring the film to the fabric
substantially as described.
F. W. OLIVER.