AN IMPROVED COMBINATION OF MATERIALS TO BE PROVISIONAL SPECIFICATION
Year: 1882

page_text: LETTERS PATENT to Benjamin Rhodes of Bow Road in the County of
Middlesex and Gustav Binswanger of 33 Aldermanbury in the City of London
for an invention of "AN IMPROVED COMBINATION OF MATERIALS TO BE
PROVISIONAL SPECIFICATION left by the said Benjamin Rhodes and
Gustav Binswanger at the Office of the Commissioners of Patents on the
· 26th May 1882.
BENJAMIN RHODES of Bow Road in the County of Middlesex and GUSTAV
BINSWANGER of 33 Aldermanbury in the City of London "AN IMPROVED
COMBINATION OF MATERIALS TO BE EMPLOYED AS AN INSULATOR FOR ELECTRICAL
PURPOSES
"
The object of this invention is the production of a good and economical Electrical
insulating substance by the novel combination for this purpose of Asbestos with
India Rubber-Gutta Percha and other glutinous substances in the manner herein-
after described.
Asbestos-India-rubber and Gutta percha are each separately in use and are well
known as insulators in connection with Electricity, but their separate use for this
purpose is attended with certain disadvantages such as great cost and want of
durability which it is the intention of the present invention to overcome.
The combination of the materials hereinafter described forming the subject of
this Invention will combine the essential advantages of being thoroughly efficient
as an insulator for electrical purposes and can be produced at a price much less
than at which insulating substances employed for a similar purpose are now
manufactured.
When carrying our invention into practice we proceed as follows:--
We take Asbestos and Caoutchouc or Gutta-percha together with other resinous
and glutinous substances such as shellac amber or the like to which sulphur also
may be added when it is desired to vulcanize the compound into a state which will
Di

page_text: make it suitable for the different objects to which it may be applied as an Electrical
insulator. Some of these substances we reduce to a fine powder and thoroughly
combine the whole by passing it through heated calenders or rollers in a manner
similar to that described in the Specification of a Patent granted to the above
named Benjamin Rhodes in the year of our Lord 1879 No 1334.
The compound resulting after being thus treated will be ready for moulding or
shaping for utilization for various purposes in connection with Electricity and will
be found especially useful for insulating tubes, brackets, battery cells, also as a cover
or coating for electric wires for lining tubes intended to be employed for carrying
wires charged with electricity and for other similar and like purposes
"
A
SPECIFICATION in pursuance of the conditions of the Letters Patent filed
by the said Benjamin Rhodes and Gustav Binswanger in the Great Seal
Patent Office on the 25th November 1882.
BENJAMIN Rhodes of Bow Road in the County of Middlesex and GUSTAV
BINSWANGER of 33 Aldermanbury in the City of London. "AN IMPROVED
COMBINATION OF MATERIALS TO BE EMPLOYED AS AN INSULATOR FOR ELECTRICAL
PURPOSES."
The object of this Invention is the production of a good and economical Electrical
insulating substance, by the novel combination for this purpose, of Asbestos with
India rubber, gutta percha, and other glutinous substances in the manner herein-
after described.
The
Asbestos, India rubber and Gutta percha are each separately in use and are well
known as Insulators in connection with Electricity but their separate use for this
purpose is attended with certain disadvantages, such as great cost and want of
durability, which it is the intention of the present Invention to overcome.
combination of materials hereinafter described will combine the essential
advantages of being thoroughly efficient as an Insulator for Electrical purposes;
and can be produced at a price much less than that at which insulating substances
employed for a similar purpose are now manufactured. When carrying our
Invention into practice we proceed as follows:-according to the different uses to
which the combination of materials is to be employed. Thus, for Vessels, to possess
the requirements of rigidity and strength and to resist the action of acids and
other Chemical liquids, we use the materials as hereinafter named and in the pro-
portions specified :- that is to say :-Asbestos, forty parts; shellac five parts, Resin
three parts, Sulphur, fifteen parts, all finely powdered and free from grit-India
rubber thirty five parts, Gutta percha two parts, The whole is then thoroughly
mixed and incorporated together by being continuously passed between heated
Callendars or rollers-The resultant mass is then rolled out into sheets of any
required thickness, and can then be worked, moulded, or present, into any required
shape or form and may also, if required, be vulcanized in the usual manner.

page_text: We use the compound above described in some cases as a lining for Vessels made
of other materials such as cast iron, sheet iron, sheet tin, wood, or other substances.
Also, Vessels formed of Asbestos paper or Millboard previously rendered Water-
proof and adhesive by saturation in a solution of shellac and India rubber and
similar Gums and resins-In the latter case the Vessel is built up by the Asbestos
sheeting being cemented on layer upon layer to any requisite thickness.
Having now described and ascertained the nature and objects of our said
Invention and the modes or manners in or under which the same is or may be used
and practically carried into effect We wish it to be understood, that we do not
confine ourselves, to the exact proportions of parts herein specified, as these may be
varied accordingly as the resultant mass may be required to be used in a hard and
rigid; or, in a soft and pliable state.
'
But what we Claim, is the combination of materials herein defined and set forth,
to be used for the purposes of Electrical Insulation.
In witness whereof I the said Benjamin Rhodes have on behalf of myself
and the said Gustav Binswanger hereunto set my hand and seal this twenty
fourth day of November in the year of our Lord One thousand eight
hundred and eighty two.
D. RHODES. (LANO)