A New Substitute for India-rubber and Gutta-percha.
Year: 1893

page_text: Date of Application, 12th Oct., 1893
Complete Specification Left, 12th July, 1894-Accepted, 18th Aug., 1894
PROVISIONAL SPECIFICATION.
A New Substitute for India-rubber and Gutta-percha.
I, LOUIS LE BROCQUY, of 3 Clanwilliam Place, Dublin, Ireland, Manufacturer,
do hereby declare the nature of this invention to be as follows:-
This invention has for its object the utilization of a new substitute for india-
rubber and gutta-percha, whereby a new commercial product is produced which
affords greater elasticity, tenacity, and durability than the products it is designed
to supersede.
In carrying out my invention I propose to employ as the basis of my improved
substitute, the compound known commercially as "roller composition," and which
consists essentially of a mixture in varying proportions of glue, glycerine, and
sugar.
This composition I propose to use in all cases to which it can be commercially
and economically applied as a substitute for the products specified, it being
understood that my improved substitute must in all cases be encased in a covering
of ordinary india-rubber or other suitable material-the object of such covering
being to protect the substitute from damp and mechanical injury.
l
Altho' the ingredients herein specified-glue, glycerine, and sugar-constitute
the basis of my invention, it is obvious that I may use other similar ingredients, or
may omit
one, or other of these specified, so long as I can effectually accomplish
the object of my invention, that is, to produce a gelatinous mass, or substance
which may be commercially used for the purpose specified.
Amongst the uses to which the substitute may be readily and economically
applied may be mentioned-the manufacture of india-rubber balls, billiard table
cushions, concussion buffers, india-rubber springs, and for insulating purposes.
Dated the 19th 1
1000
J. K. FAHIE & SON,
9, Westland Row, Dublin, Agents for Applicant.
COMPLETE SPECIFICATION.
A New Substitute for India-rubber and Gutta-percha.
I, LOUIS LE BROCQUY, of 3 Clanwilliam Place, Dublin, Ireland, 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:-
This invention has for its object the utilization of a new substitute for india-
rubber and gutta-percha, whereby a new commercial product is produced which
affords greater elasticity, tenacity, and durability, than the products it is designed
to supersede.
In carrying out my invention I propose to employ as the basis of my improved
substitute, the compound known commercially as "roller composition," and which
consists essentially of a mixture in varying proportions of glue, glycerine, and
sugar (molasses). This composition I propose to use in all cases to which it can be
commercially and economically applied as a substitute for the products specified,
it being understood that it is desirable that my improved composition should
in all cases be encased in a suitable covering of canvas, ordinary india-rubber,
Price 8d1

page_text: or other suitable material,-the object of such covering being to protect the
composition from damp, undue heat, and mechanical injury.
This substitute may be used in the process of manufacture, according to the
various articles to be produced, either in a liquid (hot) or solid (cold) state, as
found advisable, I prefer however to use it in the former condition.
Although the ingredients herein specified, i.e., glue, glycerine, and sugar
(molasses) constitute the fundamental basis of my invention, it is obvious that I
may use other similar ingredients as hereinafter specified, or I may omit one or
other of these mentioned, so long as I effectually accomplish the object of my
invention, that is, to produce a gelatinous mass or substance which can be used
commercially as a substitute for india-rubber and gutta-percha.
And it is further to be understood that I may add to the substitute thu;
proposed as deemed advisable for the various purposes to which it may be applied,
the following ingredients, and in the proportions best calculated to attain the
object in view, that is to say :-
(1.) In order to increase the water-proof capacity of the proposed substitute
and raise its melting point, I may use tannic acid, bichrom of soda, potash, or
chromic acid.
(2.) To increase its antiputrifaction capacity, I may use salicilic acid, or any
other known antiputrifaction agent.
(3.) For the purpose of increasing size without increasing weight, I may use
ground cork in varying proportions.
(4.) For increasing weight without increasing size, I may use varying proportions
of clays, such as china clay, French chalk, or sulphate of barium.
(5.) Finally. For the purpose of increasing the composition in firmness
especially when used for insulating purposes, I may use mica, in varying
proportions.
Amongst the various useful purposes to which my said invention may be readily
and economically applied are the following:-The manufacture of tyres for cycle
and other wheels, the construction of billiard-table cushions,-balls of all
kinds, concussion buffers,-clastic springs &c., and insulating purposes generally.
Having now particularly described and ascertained the nature of my said inven-
tion, and in what manner the same is to be performed, I would have it understood
that what I claim is:-
First. The production of a composition or compound as a substitute for india-
rubber and gutta-percha, having for its fundamental basis the ingredient
commercially known as roller composition (which consists essentially of a mixture
in varying proportious of glue, glycerine, and sugar) in combination with the
auxiliary substances herein specified, whereby I
(a) Improve the water-proof capacity, and raise the melting point;—.
(6) Increase its antiputrifaction capacity ;-
(c) Increase the size without affecting the weight;-
(d) Increase the weight without affecting the size;-and
Increase its firmness especially when used for insulating purposes.
All these properties being attained without materially altering the elastic or
resilient character of the fundamental compound. The said compound or
composition being used in combination with an outer covering of india-rubber, or
other suitable material, substantially as specified and set forth.
Second. The use and application of a compound or composition as specified in
Claim Oue, in combination with an outer shield or covering of india-rubber, or
other suitable material for the purpose herein specified.
Dated the 11th der of T.... 1804
J. K. FAHIE & SON,
9, Westland Row, Dublin, Agents for Applicant.