IMPROVEMENTS IN WIRE FOR ELECTRIC TELEGRAPHS, AND FOR OTHER SIMILAR USES
Year: 1876

page_text: LETTERS PATENT to John Rubery, of Squire's Mount, Hampstead, in the
County of Middlesex, for the Invention of IMPROVEMENTS IN WIRE FOR
ELECTRIC TELEGRAPHS, AND FOR OTHER SIMILAR USES."
Sealed the 29th December 1876, and dated the 6th July 1876.
PROVISIONAL SPECIFICATION left by the said John Rubery at the Office of
the Commissioners of Patents on the 6th July 1870.
JOHN RUBERY, of Squire's Mount, Hampstead, in the County of Middlesex.
"IMPROVEMENTS IN WIRE FOR ELECTRIC TELEGRAPHS, AND FOR OTHER SIMILAR
USES."
My said Invention consists of the improvements herein-after described in wire
for electric telegraphs and other similar uses, by which improvements a wire of
great conducting power and of great strength is produced. The said wire is also
much lighter than the iron wire ordinarily used in electric telegraphis.
In constructing wire according to my Invention I take copper wire of high con-
ducting power, and well annealed, and I also take iron or steel wire having a trough-
like figure, that is, nearly the figure of the letter U in cross section. The said
wires are wound upon separate swifts or reels, and are drawn through a draw plate,
the copper wire lying in the trough of the iron or steel wire as they enter the hole
in the draw plate.
By the drawing process the iron or steel wire is closed upon the copper wire, and
inade completely to surround and enclose it. The said wire has a central core or
The wire so made
axis of copper encased or embedded in an iron or steel wire.
may be coated with zine or gutta percha, or treated in any other desired manner.
Wire made according to my Invention is especially applicable to electric
telegraphs, but is also applicable to other purposes where a light, strong, good
conductor of electricity is required, as for example, in transmitting electricity for
lighting by electricity, and for conducting electricity for electro-plating and indus-
trial purposes generally.

page_text: SPECIFICATION in pursuance of the conditions of the Letters Patent filed by
the said John Rubery, in the Great Seal Patent Office on the 30th December
1876.
JOHN RUBERY, of Squire's Mount, Hampstead, in the County of Middlesex.
"IMPROVEMENTS IN WIRE FOR ELECTRIC TELEGRAPHS, AND FOR OTHER SIMILAR
USES."
My said Invention consists of the improvements herein-after described in wire
for electric telegraphs and other similar uses, by which improvements a wire of
great conducting power for electricity and of great strength is produced. The said
wire is also much lighter than the iron wire ordinarily used in electric telegraphs.
In constructing wire according to my Invention I take copper wire of high con-
ducting power, and well annealed, and I also take iron or steel wire having a trough-
like figure, that is, nearly the figure of the letter U in cross section. The said
wires are wound upon separate swifts or reels, and are drawn through a draw plate,
the copper wire lying in the trough of the iron or steel wire as they enter the hole
in the draw plate.
By the drawing process the iron or steel wire is closed upon the copper wire, and
made completely to surround and enclose it. The said wire has a central core or
axis of copper encased or embedded in an iron or steel wire. The copper wire may
be coated with nickel before being covered with the covering of iron or steel. The
wire so made may be coated with zinc or gutta percha, or treated in any other
desired manner.
Wire made according to my Invention is especially applicable to electric tele-
graphs, but is also applicable to other purposes where a light, strong, good conductor
of electricity is required, as for example, in transmitting electricity for lighting by
electricity, and for conducting electricity for electro-plating and industrial purposes
generally.
The drawing process is conducted in the ordinary and well known manner, and
by the use of ordinary drawing tools, and I therefore do not consider it necessary
to describe the said process and tools.
Having described the nature of my said Invention, and the manner in which the
same is to be performed, I wish it to be understood that I claim as my Invention,
manufacturing wire for electric telegraphs and for other similar uses by covering
copper wire with a covering of iron or steel by the drawing process, substantially as
herein-before described.
In witness whereof, I, the said John Rubery, have hereunto set my hand
and seal, this Twenty-seventh day of December, in the year of our Lord
One thousand eight hundred and seventy-six.
Witness,
GEORGE SHAW.
JOHN RUBERY. (L.S.)