Improvements in Conduits or Supports for Electric Conductors.
Year: 1889

page_text: Date of Application, 29th Mar., 1889
Complete Specification Left. 13th Dec., 1889-Accepted, 1st Feb., 1890
PROVISIONAL SPECIFICATION.
Improvements in Conduits or Supports for Electric Conductors.
1, FRANK KING of 38 Cheselton Road Fulham in the County of Middlesex,
Electrical Engineer do hereby declare the nature of this Invention to be as follows:-
My Invention relates more particularly to underground conduits for electric
conductors and has for its object to provide means whereby conductors of high tension
charging or primary circuits together with conductors of low tension or distributing
circuits may be conveniently supported in the same conduit.
A conduit constructed according to my Invention consists of an earthenware trough
made in convenient lengths connected together after the manner of connecting drain
pipes and provided with brackets and bridges for carrying the respective conductors.
The earthenware trough may be provided with a cover of earthenware or of iron the
latter being preferred where the trough is subjected to considerable pressure or weight.
Holes or other suitable means are provided in suitable positions in the sides of the
trough for connecting branch pipes or troughs for carrying the leading-in wires to
premises where the current is to be supplied. The insulated cables for the high tension
charging current are carried on the brackets hereinbefore referred to and the bridges
are provided with suitable oil or other insulators suitably arranged for carrying bare
or insulated copper bars for the purpose of supplying the low tension current for
distribution. Beneath or through the bridges is provided a passage forming a clear
waterway for admitting of the easy flow of any water or condensed moisture which
may collect or be introduced into the conduit and at suitable points in the conduit,
connections may be made with drain pipes leading to the ordinary street drains or
other place for carrying away the water. Any desired number or sets of brackets and
bridges may be provided in the trough according to the number of electric conductors
to be supported.
1
1 1000
J. H. JOHNSON & Co.,
47, Lincoln's Inn Fields, W.C., Agents.
COMPLETE SPECIFICATION.
Improvements in Conduits or Supports for Electric Conductors.
I FRANK KING of 38 Cheselton Road Fulham in the County of Middlesex Electrical
Engineer do hereby declare the nature of this Invention and in what manner the same
is to be performed to be particularly described and ascertained in and by the following
statement:-
My Invention relates to underground conduits for electric conductors and has for
its object to provide means whereby conductors of high tension charging or primary
circuits together with conductors of low tension or distributing circuits may be
conveniently supported in the same conduit.
I will describe with reference to the accompanying drawings arrangements according
to my Invention. Figures 1 and 2 are a longitudinal and a transverse section
respectively of a portion of a conduit constructed according to my Invention.
Figures 3 and 4 are corresponding views of a modification as hereinafter described.
A conduit A is laid along the line which the leads are to traverse, the said conduit
consisting of earthenware troughs of any convenient length and connected together,
which connection may be made in the manner of connecting drain pipes. These
troughs are provided with brackets B and bridges C for carrying the respective
conductors D and E. The earthenware conduit may be provided with a cover of any
suitable material such as for instance earthenware or iron as at F the latter being

page_text: preferred where the trough is subjected to considerable pressure or weight. Holes
or other equivalent means are provided in suitable positions in the sides of the
trough for connecting branch"pipes or troughs" (as at G)for carrying the leading-in
wires to the premises or place where the current is to be supplied. The insulated
cables D for the high tension current are carried on the brackets B and the bridges C
are provided with suitable oil or other insulators I suitably arranged for carrying
bare or insulated copper conductors or 'bars for the purpose of supplying the low
tension current. Beneath or through the bridges is provided a passage forming a
.clear way at for admitting of the easy flow of any water or condensed moisture
which may collect or be introduced into the conduit and at suitable points in the
conduit connections may be made with drain pipes leading to the ordinary street
drains or other place for carrying away the water. Any desired number or sets of
brackets B and bridges may be provided in the trough according to the number of
electric conductors to be supported. Figures 1 and 2 shew an arrangement wherein
there are two conductors E but there may be any other desired number for instance I
shew in Figures 3 and 4 four such conductors the oil insulators I which support them
being arranged so that the two adjacent conductors are only so far separated as may
be,advisable this plan economizing sideway room in the trough as shewn clearly by
Figure 3.
Having now particularly described and ascertained the nature of any said Inven-
tion and in what manner the same is to be performed I declare that what I
"claim is
A conduit or support for underground electric conductors the said conduit or
support being constructed or arranged substantially as hereinbefore described and
illustrated.
Datod this 12th day of D
1000
J. H. JOHNSON.& Co.,
Agents.