Improvements in Waterproofing Thread and in Apparatus therefor.
Year: 1897

page_text: Improvements in Waterproofing Thread and in Apparatus therefor.
I, FREDERICK WEAVER OLIVER, of 40, King Street, Cheapside, in the City of
London, do hereby declare the nature of this invention to be as follows:-
According to this invention I pass thread or yarn of cotton, hemp, wool, silk or
other fibre through a solution of celluloid, and thereby coat it and more or less
impregnate it to any desired extent with the solution, which when dried leaves the
thread coated and the interstices of the thread more or less filled with celluloid. If
necessary I pass the thread through the solution several times in order to thoroughly
impregnate it and thereby render it completely waterproof, and when desirable I add
For this
colouring matter to the solution in order to obtain a brilliant colour.
purpose I lead the thread downwards through a reservoir containing the solution
from whence it passes out of a hole at the bottom between brushes or scrapers.
preferably of felt and through a heated chamber whereby the solution is evaporated
care being taken to keep the thread out of contact with anything during this.
process.
In order to obtain thorough impregnation, I sometimes pass the thread round
rollers in the celluloid solution, these rollers being so arranged that the thread is.
bent backwards and forwards and sideways up and down.
I, FREDERICK WEAVER OLIVER, of 40, King Street, Cheapside, in the City 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 :-
According to this invention I pass thread or yarn of cotton, hemp wool silk or other
fibre through a solution of celluloid, and thereby coat it and more or less impregnate
it to any desired extent with the solution, which when dried leaves the thread coated
and the interstices of the thread more or less filled with celluloid. If necessary I
pass the thread through the solution several times in order to thoroughly impregnate
it, and thereby render it completely waterproof, and when desirable I add colouring
obtain
matter to the solution in order to
For this
a brilliant colour.
purpose I lead the thread downwards through a reservoir containing the solution from
whence it passes out of a hole at the bottom between brushes or scrapers preferably

page_text: of felt and through a heated chamber whereby the solution is evaporated care being
taken to keep the thread out of contact with anything during this process.
In order to obtain thorough impregnation, I sometimes pass the thread round
rollers in the celluloid solution, these rollers being so arranged that the thread is
bent backwards and forwards and sideways up and down.
Figure 1 is a vertical section of an apparatus constructed according to this
invention and Figure 2 an elevation of one of the brushes.
a is the thread and b b rollers over which it passes.
c is a reservoir containing a
solution of celluloid having a small hole in its bottom to allow the thread to pass
out. d are circular clips carrying semi-circular brushes or scrapers d¹ of felt. e e are
steam or water jacketted tubular chambers.
Having now particularly described and ascertained the nature of my said inven-
tion and in what manner the same is to be performed, I declare that what I
claim is :-
1. Waterproofing thread by passing it through a solution of celluloid.
2. Apparatus substantially as described and shown in the drawings.