IMPROVEMENTS IN PROTECTING TELEGRAPH WIRES AND CABLES
Year: 1869

page_text: LETTERS PATENT to William Thomas Henley, of Leadenhall Street,
in the City of London, Telegraphic Engineer, for the Invention of
"IMPROVEMENTS IN PROTECTING TELEGRAPH WIRES AND CABLES."
Scaled the 14th June 1870, and dated the 16th December 1869.
PROVISIONAL SPECIFICATION left by the said William Thomas Henley
at the Office of the Commissioners of Patents, with his Petition, on
the 16th December 1869.
I, WILLIAM THOMAS HENLEY, of Leadenhall Street, in the City of
London, Telegraphic Engineer, do hereby declare the nature of the
said Invention for "IMPROVEMENTS IN PROTECTING TELEGRAPH WIRES AND
CABLES," to be as follows:-
My Invention relates to improvements upon an Invention for which I
'obtained Letters Patent the 30th July 1853, No. 1779. According to that
Invention I applied iron pipes as a protection to wires or cables laid
underground or in a nearly horizontal position.
The present Invention consists of improved pipes intended to be
especially applied to the protection of the shore ends of submarine cables

page_text: or wires when they lie on a considerable incline, and the pipes are so
made that they cannot slip away from each other as if made as
heretofore.
I make the tubes in two longitudinal lengths or halves, one half fitting
over or on the other half. Lugs are provided at or near the fore and
rear end of one half of the pipe which fit into corresponding recesses on
the other half. The ends of the pipes are made partly spherical, and of
a larger diameter than the body of the pipe itself; the sockets are made
internally of the same shape to receive the enlarged ends, and this
prevents the pipes from separating from each other, whether they are on
an incline or hanging quite vertical. In order to get the enlarged end
into the socket the lugs are made of a wedge shape, this enables the half
pipe with the lugs to be readily slipped over the wedge-shaped projections
on the other half after the enlarged end of the next pipe has been placed
in it. Projecting pieces on the body of the half pipe drop into notches
in the other half, and thus prevent one half of the pipe getting displaced
from the rest.
SPECIFICATION in pursuance of the conditions of the Letters Patent,
filed by the said William Thomas Henley in the Great Seal Patent
Office on the 16th June 1870.
TO ALL TO WHOM THESE PRESENTS SHALL COME, I, WILLIAM
THOMAS HENLEY, of Leadenhall Street, in the City of London, Tele-
graphic Engineer, send greeting.
WHEREAS Her most Excellent Majesty Queen Victoria, by Her
Letters Patent, bearing date the Sixteenth day of December, in the year
of our Lord One thousand eight hundred and sixty-nine, in the thirty-
third year of Her reign, did for Herself, Her heirs and successors,
give and grant unto me, the said William Thomas Henley, Her special
licence that I, the said William Thomas Henley, my executors, adminis-
trators, and assigns, or such others as I, the said William Thomas
Henley, 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

page_text: "IMPROVEMENTS IN PROTECTING TELEGRAPH WIRES AND CABLES," upon the
condition (amongst others) that I, the said William Thomas Henley,
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 imme-..
diately after the date of the said Letters Patent.
NOW KNOW YE, that I, the said William Thomas Henley, do hereby
declare the nature of my said Invention, and in what manner the
same is to be performed, to be particularly described and ascertained in
and by the following statement, reference being had to the accompanying
Drawings, and to the letters of reference marked thereon, that is to
say:-
My Invention relates to improvements upon an Invention for which
I obtained Letters Patent the 30th July 1853, No. 1779. According to
that Invention I applied iron pipes as a protection to wires or cables laid
underground or in a nearly horizontal position.
The present Invention consists of improved pipes intended to be
especially applied to the protection of the shore ends of submarine cables
or wires when they lie on a considerable incline, and the pipes are so
made that they cannot slip away from each other as if made as
heretofore.
I make the tubes in two longitudinal lengths or halves, one half
fitting over or on the other half. Lugs are provided at or near the fore
and rear end of one half of the pipe which fit into corresponding recesses
on the other half. The ends of the pipes are made partly spherical and
of a larger diameter than the body of the pipe itself. The sockets are
made internally of the same shape to receive the enlarged ends, and this
prevents the pipes from separating from each other, whether they are on
an incline or hanging quite vertical. In order to get the enlarged end
into the socket the lugs are made of a wedge shape, this enables the
half pipe with the lugs to be readily slipped over the wedge-shaped
projections on the other half after the enlarged end of the next pipe
has been placed in it. Projecting pieces on the body of the half pipe
drop into notches in the other half, and thus prevents one half of the pipe
getting displaced from the rest.

page_text: The accompanying Drawings illustrate the manner in which the
Invention may be carried into effect.
-
Figure 1 is a longitudinal view of the pipe complete, that is, the two
half pipes joined, and Figure 2 is an end view of the same; Figure 3 is
a view of one half of the pipe showing the projecting pieces or lugs
a, a, a, a, attached thereto; Figure 4 is an end view of the same;
Figure 5 is a view of the other half of the pipe or of that portion which
slides on or in the other; b, b, are the lugs which fit in between the
The
lugs a, a, a, a; and Figure 6 is an end view of the same.
wedge-shaped projections at one end of the pipes are shewn at c in
Figs. 2 and 5, and the corresponding recesses d, d, in Figs. 3 and 4.
The lower end of the complete pipe, shewn at Fig. 1, shews the wedge
shape of both the lugs and the recesses in which they fit. Fig. 1 also
shews how the lugs a and b fit together.
Having thus described the nature of this Invention, and in what
manner the same is to be performed, I claim as my Invention the
construction of covering or protecting pipes for telegraphic wires in two
halves fitted and joined together by means of projecting lugs and
corresponding recesses, substantially as set forth.
In witness whereof, I, the said William Thomas Henley, have
hereunto set my hand and seal, this Fourteenth day of June,
in the year of our Lord One thousand eight hundred and
seventy.