Cables and Ropes.
Year: 1886

page_text: Cables and Ropes.
I GEORGE SUTTON, Secretary, and W. T. HENLEY'S Telegraph WorkS COMPANY
Limited both of 8 Drapers Gardens in the City of London do hereby declare the
nature of this invention to be as follows:-
This invention relates to electrical conductors which are covered or insulated in
the ordinary way, the invention being also applicable to ropes or cables of metal or
compound construction.
"6
The object of the invention is to produce a conductor which while being fully
insulated is also protected from undue strain and from abrasure or from the attacks
of rats or other animals, or in the case of sub-aqueous conductors from the attacks
of marine animals such as- borers." Further objects being to strengthen the
general construction of electrical or other cables or ropes, and to provide in the
case of electrical cables a complete metallic circuit, and protect the conductor from
induced currents which might be derived from neighbouring lines.
To this end the invention consists in covering the insulated conductors or cores
with a braiding or plaiting of more or less fine metallic wires while in the case of
large cables or ropes an alternate or other series of layers of material and braided
or plaited wires may be employed.

page_text: Cables and Ropes.
We GEORGE SUTTON, Secretary and W. T. HENLEY'S TELEGRAPH WORKS
COMPANY Limited both of 8 Drapers Gardens in the City of London do hereby
declare the nature of this invention and in what manner the same is to be per-
formed, to be particularly described and ascertained in and by the following
statement:-
This invention relates to electrical conductors which are covered or insulated in
the ordinary way, the invention being also applicable to ropes or cables of metal or
compound construction.
The object of the invention in so far as electrical cables are concerned is to
produce a conductor which while being fully insulated is also protected from undue
strain and from abrasure or from the attacks of rats or other animals, or in the case
of subaqueous conductors from the attacks of marine animals such as. "borers."
Further objects of the invention being to strengthen the general construction of
electrical or other cables or ropes and to provide in the case of electrical cables a
complete metallic circuit, and protect the conductor from induced currents which
might be derived from neighbouring lines.
To this end the invention consists in covering the insulated conductors or cores
with a braiding or plaiting of more or less fine metallic wires while in the case of
large cables or ropes an alternate or other series of layers of material and braided
or plaited wires may be employed.
In all cases an external covering of lead may be put on and insulated by any
suitable substance from the last metallic covering.
To clearly explain my invention, and shew how the same may be practically
employed, reference is made to the accompanying drawings which form part of this
specification, and in which like letters of reference are used to designate like parts
in the various figures.
Figure 1 represents in side elevation, a section of cable or rope made in
accordance with my invention.
Figure 2 is an end view of Figure 1.
Figure 3 represents in side elevation a section of a larger size cable or rope in
which two braided coverings of wire are employed.
Figure 4 is an end view of Figure 3.
If it be assumed that, the cables shown are constructed for electrical purposes
A will represent the conductor covered by insulating material B, which in turn is
covered by the plaited or braided wire jacket or covering C, which may be used to
complete the circuit and which may be applied by means of apparatus analogous to
that now employed for braiding or plaiting cotton or woollen goods.
In Figures 3 and 4 a larger cable is represented and in this two coverings of the
plaited wire C, are shown, these being separated by an insulating or other com-
pound, and the outer braided jacket having a covering of tarred rope or other
material.
It will of course be understood that the size of the cable will be varied to meet
the requirements of each particular case, as the invention is equally applicable to

page_text: "
telegraph or telephonic " wires
or cables as to deep sea cables. If instead of
electrical cables it is desired to use my invention for compound ropes, or such as
those employed for ships rigging mining or other purposes, instead of the con-
ductor A, and insulating compound B, an ordinary core of hemp or wire will be
employed.
-
We do not limit ourselves nor claim any specific number or order in which the
coatings or layers may be used but,
Having now particularly described and ascertained the nature of the said
invention and in what manner the same is to be performed we declare that what
we claim is
The improved rope or cable having one or more braided or plaited jackets or
coverings of wire substantially as and for the purposes set forth.
Dated this loth day of October 1880.
PHILIP M. JUSTICE,
55 and 56, Chancery Lane, London,
Applicants' Agent,