Year: 1886

page_text: Date of Application, 8th Apr., 1886.
Complete Left, 24th Dec., 1886.
Complete Accepted, 25th Jan., 1887.
1, OLIVER IMRAY, of No. 28 Southampton Buildings, Chancery Lane in the County
of Middlesex, Fellow of the Institute of Patent Agents, do hereby declare the nature.
of this invention to be as follows:-
This invention relates to the manufacture of an elastic compound which may be used
as a substitute for caoutchouc or other clastic materials or which may be used in
combination with these.
Elastic compounds have been made consisting of oil sulphur and copal, but, owing to
the expense of copal, these compounds are seldom used as substitutes for caoutchouc.
According to this invention the use of the expensive material copal is entirely
dispensed with, by employing instead of it, resin hardened by treatment with caustic
lime or other alkaline earth as described in the Specification No. 8036* of 1884 and
thus a cheap compound is produced that can be used as a substitute for caoutchouc
and like substances.
The proportions of the ingredients and the temperatures used depend on the degree
of hardness and elasticity required in the compound which is manufactured in the
following manner. A mixture of hardened resin and boiled or oxidised oil is heated
and has added to it under heat and agitation sulphur balsam consisting of oil
previously heated to which sulphur has been added. The product on cooling is an
elastic compound generally applicable to the purposes for which caoutchouc and other
elastic materials are used. In order to vary the consistence and increase the tenacity
and durability of the compound pulverulent or fibrous substances may be mixed with
the ingredients. The compound may be dissolved, and the solution can be applied,
like that of caoutchouc, for waterproofing or like purposes.
ABEL & IMRAY,
28, Southampton Buildings, London, W.C.,
Agents for the Applicant.

page_text: I OLIVER IMRAY of No. 28 Southampton Buildings Chancery Lane in the County
of Middlesex Fellow of the Institute of Patent Agents 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 the manufacture of an elastic compound which may be used
as a substitute for caoutchouc or other elastic materials or which may be used in combi-
nation with these.
Elastic compounds have been made consisting of oil, sulphur and copal, but, owing
to the expense of copal, these compounds are seldom used as substitutes for caoutchouc.
According to this invention, the use of the expensive material copal is entirely
dispensed with, by employing instead of it, resin hardened by treatment with caustic
lime or other caustic alkaline earth as described in the Specification No. 8036* of 1884,
and thus a cheap compound is produced that can be used as a substitute for caoutchouc
and like substances.
The proportions of the ingredients and the temperatures used depend on the
degree of hardness and elasticity required in the compound, which is manufactured in
the following manner. A mixture of hardened resin and boiled or oxidised oil is
heated and has added to it under heat and agitation sulphur balsam, consisting of oil
previously heated to which sulphur has been added. The product on cooling
elastic compound generally applicable to the purposes for which caoutchouc and other
elastic materials are used.
an
A product useful for many purposes is manufactured by adopting the following
proportions and temperatures. About equal weights of hardened resin and boiled oil
are heated together until the resin is melted and thoroughly mingled with the oil. To
this is added a weight of sulphur balsam about the same as that of the resin or oil, this
sulphur balsam itself consisting of about three parts by weight of boiled oil to two of
sulphur, the sulphur having been added gradually to the previously heated oil. The
whole mixture is then heated to about 300° Fahr. and thoroughly mixed. Instead of
using a sulphur balsam so rich in sulphur as is stated above, there may be added a
smaller quantity of balsam consisting of about one part of sulphur to 5 of oil, a farther
quantity of sulphur being finally added while the previous mixture is heated to 350°
or 400° Fahr." In order to vary the consistence and increase the tenacity and
durability of the compound, pulverulent or fibrous substances may be mixed with the
ingredients. The compound may be dissolved, and the solution can be applied, like
that of caoutchouc, for waterproofing or like purposes.
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 manufacture of an elastic compound in imitation of caoutchouc by the admix-
ture of hardened resin, boiled oil and sulphur, substantially as herein described.
ABEL & IMRAY,
Agents for the Applicant.