Improvements in or relating to Artificial Rubber or Rubber Substitutes.
Year: 1898

page_text: PROVISIONAL SPECIFICATION.
Improvements in or relating to Artificial Rubber or Rubber
Substitutes.
I, JULIUS DEBORDE, Merchant, of 16 and 17, Lindenstrasse, Berlin, in the Empire of
Germany, do hereby declare the nature of this invention to be as follows:—
The present invention relates to the manufacture of artificial rubber, and concerns
an improvement of the process forming the subject of Letters Patent Nos. 8905
and 23056, both of 1897.
The essential feature of the new improvement consists in increasing the elasticity
of the mass composed of gelatine aud glycerine, by means of mechanical
pulverisation after manufacture, instead of by centrifugal action when in a fluid
state, according to Letters Patent Nos. 8905 and 23056 of 1897 before referred to.
In carrying out the invention the following procedure is followed :-
The gelatine and glycerine is mixed in about equal parts and additions made to this
mixture, which increase the durability and elasticity of the mass. The powder or
granular mass of the invention can be obtained, by the mass first being subjected to
centrifugal action whilst still in fluid condition, as in the process described in the
specification already referred to. It can, however, without being subjected to such
centrifugal action, be allowed to cool down. The mass is then, after becoming rigid,
pulverised mechanically, so as to form a kind of powder.
The mass thus obtained has greater elasticity, and is of much less weight, than
even the mass which has been beaten to foam; it is therefore more advantageous
to use.
Dated this 1st day of Santembar 1808
BOULT & WADE,
Agents for the Applicant.
COMPLETE SPECIFICATION.
Improvements in or relating to Artificial Rubber or Rubber
Substitutes.
I, JULIUS DEBORDE, Merchant, of 16 and 17, Lindenstrasse, Berlin, in the Empire of
Germany, 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 :-
The present invention relates to the manufacture of artificial rubber, and relates
to, an improvement on the process forming the subject of Letters Patent Nos. 18950
of 1898 and 23056 of 1897.

page_text: The essential feature of the new invention consists in increasing the elasticity
of the mass composed of gelatine and glycerine, by mechanical breaking up or
pulverisation after manufacture, instead of by centrifugal action when in a fluid
state, according to the Letters Patent Nos. 18950/98 and 23056 of 1897 before
referred to.
In carrying out the invention the following procedure is followed :-
Gelatine (or glue) and glycerine are mixed in about equal parts, and additions may
be made to this mixture, to increase its durability and elasticity. The broken up or
granular mass of the invention can be obtained by first subjecting the material to a
beating or centrifugal action whilst still in a fluid condition, as in the process
described in the specifications already referred to. It can, however, without being
subjected to such centrifugal action, be allowed to cool down. The mass is then in
either case after becoming set and rigid, broken up or pulverised mechanically, so as
to form a kind of powder.
The material thus formed has greater elasticity, and is of much less weight, than
even the mass which has been beaten to foam; it is therefore more advantageous
to use.
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. The production of artificial rubber consisting in making a mixture of gelatine
or glue and glycerine, with or without additions to increase its durability and
elasticity, and breaking up or pulverising the mass either when set, or after it
has been beaten up into a foam or lather and allowed to set, substantially as
described.
2. An improvement on the process of making artificial rubber described in
Letters Patent 23056 of 1897 or 18950 of 1898, consisting in breaking up or
pulverising the gelatinous and glycerine mass after being cooled, substantially as
described.
3. The artificial rubber composition substantially as described.