AN IMPROVED METHOD OF PRESERVING ELECTRIC TELEGRAPH CABLES AND WIRES
Year: 1862

page_text: LETTERS PATENT to James Benjamin Harby, of Leytonstone, in the
County of Essex, Rope Maker, for the Invention of "AN IMPROVED
METHOD OF PRESERVING ELECTRIC TELEGRAPH CABLES AND WIRES."
Sealed the 25th July 1862, and dated the 29th January 1862.
PROVISIONAL SPECIFICATION left by the said James Benjamin Harby
at the Office of the Commissioners of Patents, with his Petition, on the
29th January 1862.
I, JAMES BENJAMIN HARBY, of Leytonstone, in the County of Essex, Rope
Maker, do hereby declare the nature of the said Invention for "AN IMPROVED
METHOD OF PRESERVING ELECTRIC TELEGRAPH CABLES AND WIRES," to be as
follows:-
My Invention consists in impregnating or coating the yarn or textile fabric
or fibres employed in the manufacture of electric telegraph cables with a
composition of solution of caoutchouc, resin, and powdered chalk, the pro-
portions of the materials being varied according to the pliability required
when the composition is set. In some cases I mix with the composition
arsenic or other poison to guard against the attacks of fish, insects, and
animals.
My Invention also consists in coating. the conducting wires, whether in

page_text: submarine, subterranean, or suspended telegraphs, as also complete cables,
and the separate wires composing the cable, with the said composition, which
I apply in a heated state.
By way of example, I give the following as suitable proportions of the
SPECIFICATION in pursuance of the conditions of the Letters Patent, filed
by the said James Benjamin Harby in the Great Seal Patent Office
on the 29th July 1862.
TO ALL TO WHOM THESE PRESENTS SHALL COME, I, JAMES
BENJAMIN HARBY, of Leytonstone, in the County of Essex, Rope Maker, send
greeting.
WHEREAS Her most Excellent Majesty Queen Victoria, by Her Letters
Patent, bearing date the Twenty-ninth day of January, in the year of our Lord
One thousand eight hundred and sixty-two, in the twenty-fifth year of Her
reign, did, for Herself, Her heirs and successors, give and grant unto me, the
said James Benjamin Harby, Her special licence that I, the said James
Benjamin Harby, my executors, administrators, and assigns, or such others as I,
the said James Benjamin Harby, my executors, administrators, and assigns,
should at any time agree with, and no others, from time to time and at all
times thereafter during the term therein expressed, should and lawfully might
make, use, exercise, and vend, within the United Kingdom of Great Britain
and Ireland, the Channel Islands, and Isle of Man, an Invention for "AN
IMPROVED METHOD OF PRESERVING ELECTRIC TELEGRAPH CABLES AND WIRES,"
upon the condition (amongst others) that I, the said James Benjamin
Harby, my executors or administrators, by an instrument in writing under
my, or their, or one of their hands and seals, should particularly describe
and ascertain the nature of the said Invention, and in what manner the same
was to be performed, and cause the same to be filed in the Great Seal Patent
Office within six calendar months next and immediately after the date of the
said Letters Patent.
NOW KNOW YE, that I, the said James Benjamin Harby, do hereby
declare the nature of my said Invention, and in what manner the same is

page_text: to be performed, to be particularly described and ascertained in and by the
following statement thereof, that is to say :-
My Invention consists in impregnating or coating the yarn or. textile fabric
or fibres employed in the manufacture of electric telegraph cables with a com-
position of solution of caoutchouc, resin, and powdered chalk, the proportions
of the materials being varied according to the pliability required when the
composition is set. In some cases I mix with the composition arsenic or
other poison to guard against the attacks of fish, insects, and animals.
My Invention also consists in coating the conducting wires, whether in
submarine, subterranean, or suspended telegraphs, as also complete cables,
and the separate wires composing the cable, with the said composition, which I
apply in a heated state.
By way of example, I give the following as suitable proportions of the