Improvements in Electrical Fittings for Conduits adapted to Electrical Traction.
Year: 1896

page_text: Date of Application, 18th Dec., 1896
Complete Specification Left, 16th Sept., 1897-Accepted, 6th Nov., 1897
PROVISIONAL SPECIFICATION.
Improvements in Electrical Fittings for Conduits adapted to
Electrical Traction.
I, JOHN EDWARD WALLER of 29 Great George Street, Westminster, Civil Engineer,
do hereby declare the nature of this invention to be as follows:-
My invention relates to electrical fittings in conduits, adapted to support and carry
cables for electrical traction, and consists of an improved device for the support,
diversion, or anchoring of the ends of electrical cables, in the system of electrical
traction as patented to myself and Edward Manville under No. 6082 and dated
22nd of April 1890, or in like circumstances.
Where a cable is stretched by static tension, and carried upon supports, as in our
said system, it is necessary that such support, should be pivotably attached to a fixed
hinge allowing free passage of the collector from under the end of a cable to another,
whilst at the same time the said pivotted support must maintain the necessary tension
in the cable or its anchorage as desired.
In order to simplify the said pivotted support, to keep it in the smallest possible
space; and to avoid the bending of the cable through small curvatures, us would be the
case over sinall pulleys, I have devised the following improvement :-
I form the said pivotted support of two right and left handed curved plates, divided
by an insulated plate, and provided with double curved grooves sunk therein, in which
the ends of two cables can lie, and which are thereby diverted by easy curves to
directions, first at right angles to the main course of the cable in a horizontal plane,-
and then to lie vertically, such ends of the cables being either strained by hanging
weights or by equivalent spring tension; or the ends may be anchored to either or
both of the parts of the said combined curved pivotted support.
I, may so arrange the curve of the back of such supports, where they approach the
pivotted hinge, that I may give any desired moment to the hanging or straining
weight or force about the pivot, so as to exactly balance, or to slightly lift, or to allow
the weight of the overhanging part of the said plate-support to normally depress, the
said pivotted support.
The introduction of the insulated plate between the two metallic grooved portions
of the support, enables any section of cable, which is bare, to be isolated from the
remainder, for the purposes of testing and locating faults; and further auxiliary supplies
of electrical energy may be fed into any sections of cable, where anchored or strained
over this support, by the insertion of a connecting bolt into either or both of the said
metallic portions of the support.
I can also conveniently utilize this form of pivotted support as an entrance plate,
by bolting to one arm of the said support plate an entrance nose, which may be in
either direction, and the support can be used simultaneously for the anchoring or
straining of the end of the cable to which it is desired to effect entrance.
Dated this 18th day of December 1896.
FELL & JAMES,
1 Queen Victoria Street, London, E.C., Agents for the Applicant.

page_text: Improvements in Electrical Fittings for Conduits adapted to
Electrical Traction.
I JOHN EDWARD WALLER of 29 Great George Street, Westminster, Civil 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 electrical fittings in conduits, adapted to support and carry
cables for electrical traction, and consists of an improved device for the support,
diversion, or anchoring of the ends of electrical cables, in the system of electrical
traction as patented to myself and Edward Manville under No. 6082, and dated
22nd of April 1890 or in like circumstances.
Where a cable is stretched by static tension, and carried upon supports, as in our
said system, it is necessary that such support should be pivotably attached to a fixed
hinge, allowing free passage of the collector from under the end of a cable to another
whilst at the same time the said pivotted support must maintain the necessary
tension in the cable or its anchorage if desired.
In order to simplify the said pivotted support, to keep it in the smallest possible
space, and to avoid the bending of the cable through small curvatures, as would be the
case over small pulleys, I have devised the following improvement.
I form the said pivotted support of two right and left handed curved plates, divided
by an insulating plate, and provided with double curved grooves sunk therein, in
which the ends of two cables can lie, and which are thereby diverted by easy curves
to directions first at right angles to the main.course of the cable in a horizontal plane,
and then to lie vertically; such ends of the cables being either strained by hanging
weights or by equivalent spring tension; or the ends may be anchored to either or
both of the parts of the said combined curved pivotted support.
I may so arrange the curve of the back of such supports where they approach the
pivotted hinge, that I may give any desired moment to the hanging, or straining
weight or force about the pivot, so as to exactly balance, or to slightly lift, or to allow
the weight of the overhanging part of said plate-support to normally depress, the said
pivotted support.
The introduction of the insulated plate, between the two metallic portions of the
support, enables any section of cable, which is bare, to be isolated from the remainder,
for the purposes of testing, and locating faults; and further auxiliary supplies of
electrical energy may be fed into any sections of cable, where anchored, or strained
over this support, by the insertion of a connecting bolt into either or both of the said
metallic portions of the support. I can also conveniently utilize this form of pivotted
support as an entrance plate, by bolting to one half of the said support-plate, an
entrance nose, which may be in either direction, and the support can be used
simultaneously for the anchoring or straining of the end of the cable to which it is
desired to effect an entrance.
And in order that my invention may be the better understood I now proceed to
describe the same with reference to the drawings hereto annexed, and to the letters
and figures marked thereon.
Fig 1 is a side elevation of my device fitted to a rail track conduit, for the support,
diversion, or anchoring of electrical cables therein.
Fig 2 is a plan of the said device.

page_text: Fig 3 is an elevation of a special nose adapted to the said device to facilitate entry
of the collector thereto.
Fig 4 is a plan of the same, combined with half anchoring cable device.
My cable supporting, anchoring, or diverting device, consists of two right and left
handed, but otherwise duplicate metallic curved plates A A which are bolted
together upon an intermediate insulating packing or diaphragm B, and are provided
with spindles C. C. adapted to freely turn in journals D. D. supported from insulators
E. F. fixed in the conduit yokes or roof F. G. G. are the ends of two adjacent cables
which it is desired to anchor, tensionally strain, and support or divert, so as to admit
the known Collector H to enter thereunder, and lift the cable to give metallic contact,
between said collector and cable.
These cable ends enter the anid support hy grooves under the extended wings a. a.
of the said plates A A' and pass by grooves b. b. over the back of the said plates, with
diversion horizontally at right angles to the line of the cable, and eventually with
diversion over the pivot spindle C into a vertical direction, where the cables at the
ends G may be tensionally strained by hanging weights or by spring attachments.
Or, alternatively, the ends of the cables G may be anchored to the said supporting
plate by a clamp Mor other suitable device.
The vertical ends G1 of the cables may be caused, by the form of the supporting
device A A', to have any required moment about the pivot spindle C so that the
supporting device A A¹ and cables, may be either balanced in equilibrium, or may
tend to be lifted or allowed to slightly depress, by or against the counterbalancing
straining weight upon said cable ends G',
The presence of the insulated plate or packing B. between the metallic
supports A A insulates any section of cable, which is hare, from its adjacent section,
for testing; and if desired auxiliary supplies of electrical energy may be fed into any
individual sections of cable, by the insertion of a connecting bolt from any external
source of electrical energy into either or both of the said metallic supports A A¹
To adapt this supporting device as an entrance plate to any cable,-I connect to
one half of such supporting plate a special entrance cheek K, provided with a long
turned-up nose L, suitable for the entrance there-under of the usual collector H,
which thereafter lifts and enters under the cable G with good metallic contact.
In this case, as there is only one cable end G G¹, the said entrance check K which
may be right, or left-handed, may be bolted direct to its appropriate grooved cable
support A without intermediate insulating packing; the half support A being
utilized as heretofore described for the anchorage, or tensional straining of the cable G,
to which it is desired to effect an entrance by the collector H.
Having now particularly described and ascertained the nature of my said inven-
tion and in what manner the same is to be performed, I declare that what I
claim is;
1st. In an electrical cable conduit, a pivotable fitting, adapted by its shape, and by
entrance and surface grooves, to admit the end of a cable or the two ends of adjacent
cables, and to divert the ends of said cables by easy curves through two right angled
bends horizontally and vertically without the use of pulleys, to admit the simultaneous
lifting of the main body of the cables with a tensional straining or anchorage of the
ends of the said cables."
2nd. In a pivotable electrical cable support the arrangement of the cable guiding
grooves about the pivot of the said support, so that the vertically strained cable ends
may be adapted to give such a desired moment as to balance the support and cable
about the said pivot or to give the same a normal tendency to lift or depress about
the said pivot.
3rd. In a pivotable electrical cable support the combination to form such a support
of two right and left-handed, but otherwise duplicate grooved metallic plates, with a
dividing insulating packing plate, substantially as and for the purposes described.
4th. In a pivotable electrical cable support, the combination with a half right or

page_text: left handed grooved supporting plate, of an upturned nosed entrance-cheek, left or
right handed respectively, substantially as and for the purposes described.
Dated this 16th day of September 1897.
FELL & JAMES,
1 Queen Victoria Street, London, E.C., Agents for the Applicant.