Improvements in the Appliances for, and Mode of, Connecting, Clamping. and Holding the Cables, Wires, and Conductors Used in the Transmission of Electric Currents.
Year: 1885

page_text: Improvements in the Appliances for, and Mode of, Connecting,
Clamping. and Holding the Cables, Wires, and Conductors
Used in the Transmission of Electric Currents.
I OCTAVIUS MARCH of 53 Gratton Road, West Kensington Park, London, W in
the County of Middlesex, Electrical Engineer do hereby declare the nature of my
nvention for "IMPROVEMENTS IN THE APPLIANCES FOR, AND MODE OF, CONNECTING,
CLAMPING AND HOLDING THE CABLES, WIRES AND CONDUCTORS USED IN
TRANSMISSION OF ELECTRIC CURRENTS to be as follows
"
-
THE
The objects sought to be attained by my Invention are mainly to effect the
secure clamping, connecting and holding cables, wires and conductors used in the
transmission of electric currents and in the case of stranded cables or wires to
In both cases, said
accomplish the said operations without displacing the strands
operation being performed in such a manner as to secure efficient electrical contact
In carrying out my said Invention I proceed as follows -That is to say -In a
block of brass or other suitable metal or material-of a cylindrical or approxi-
mately cylindrical form, I make a longitudinal slot of suitable width from the top
I drill a
downwards to within say about of an inch of the bottom of said block
hole transversely through said block, at a distance of say about an inch from the
bottom thereof and in such a manner as to ensure that the axis of said hole or
perforation passes through the block at right angles to the plane of the longitu-
dinal slot aforesaid, in which I place a metal slide piece of a thickness adapted to
allow of its being readily slid up and down in the slot, said slide piece may also,
if desired, be provided with small flanges or guides To the slide pieco 18 attached
a screw which passes through a suitable nut resting on the top of the slotted block
above mentioned, and, a hole is drilled through said slide piece, of the same
diameter as that of the hole or perforation formed transversely through the slotted
block above mentioned and so as to ensure that when the slide piece is at the
bottom of the slot, the holes formed in the slide piece and the slotted block respec-
tively, shall be co-incident The cable or conductor is passed through these holes,
and, on the nut being screwed down, the slide piece is raised, thus clamping or
binding the cable or conductor between the bottom of the hole in the slide piece
and the top of that in the slotted block aforesaid

page_text: By the device or contrivance in accordance with my Invention as aforesaid,
cables or conductors-of any size which will allow of their being passed through
the holes herein before described-can be securely clamped, and also, (as stated at
the outset of my specification) in the case of stranded wires or cables, without
displacing the strands In both cases the clamping being effected in such a manner
as to ensure efficient electrical contact
I also provide and include under my present Invention, modifications (to be
fully described in my Complete Specification) to allow for connecting branch wires
to main circuits where the end of such main is not available and without cutting
Buch main.
Also, for connecting the ends of cables and conductors, and with
especial reference in such latter application or modification, to connecting the ends
of two wires having different diameters
This
In the modifications referred to in the last preceding paragraph the longitu-
dinal shit herinbefore referred to is cut from the bottom upwards and the slide
instead of merely having a hole drilled through it is formed into a hook
arrangement permits of the connector being hooked upon the main cable or wire,
the bianch wire is then placed under the nut, which on being screwed down,
secures the two firmly together
JAMES STEVENSON,
26, Paternoster Square, London, EC,
Agent for Applicant

page_text: Improvements in the Appliances for, and Mode of, Connecting,
Clamping and Holding the Cable 171709
and Conductory
Used in the Transmission of Electric Currents.
I OCTAVIUS MARCH of 53 Gratton Road West Kensington Park London, W 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
I construct an appliance for connecting, clamping and holding cables wires and
conductors, in the following manner reference being had to the accompanying sheet
of drawings, in the several views of which the same letters of reference are employed
to denote like or corresponding parts throughout
In a block c of brass or other suitable material and preferably of an approxi-
mately cylindrical form (with or without flanges f¹ at the base for attachment)
I cut a vertical slot of suitable width from the top downwards to within about + of
an inch from the bottom I drill a hole e transversely through the block c afore-
said and at a distance of about an inch from the bottom of the latter, said hole e
being drilled or formed in such a way that its axis passes through the block cat
right angles to the plane of said slot. I place, in the slot aforesaid, a metal slide d
of a thickness suitable to allow of its being readily slid up and down in the slot
The metal slided is formed at the top with, or has attached to it a screw which
passes, as shewn through a suitable nut a, resting on the top of the slotted block
A hole el 18 drilled through the metal slide d, and of a diameter corresponding
with that of e, the hole formed through the block c, in such a manner as to ensure
that when the slide d is at the bottom of the slot, the corresponding hole e' in the
slide, is opposite the hole e drilled in the block o The cable or conductor is passed
through the holes e e¹, and, on the nut being screwed down, the slide is raised, and
thus the cable or conductor becomes clamped between the bottom of the hole in the
slide and the top of that in the block By the means above described cables or
conductors (of any size that can be passed through the holes e, e¹) can be securely
clamped and, in the case of stranded wires or cables without displacing the strands,
as also in such a manner as to secure efficient electrical contact
Referring to the accompanying sheet of drawings, Figures 1 and shew by an
elevational and sectional view respectively, a convenient mode of attachment which
may be adopted for the hereinbefore described apparatus when flanges fl (as in
Figures 3 and 4) are not employed
Figures 5, 6, 7 and 8 are illustrative of a modification of the apparatus herein-
before described, devised for connecting branch wires to main circuits where the
end of such main is not available and without cutting such main, as also for
connecting the ends of cables and conductors My invention as thus modified 18
especially adapted for connecting the ends of two wires having different diameters
In the arrangement last referred to, the slot hereinbefore described, is cut from the
bottom upwards, and, the slide instead of merely having a hole drilled through it
is formed into a hook as at p, r The device here shewn (Figures 5, 6, 7 and 8)

page_text: permits of the connector being hooked upon the main cable or wire, the branch
wire is then placed under the nut, which on being screwed down secures the two
firmly together
Having now particularly described and ascertained the nature of my said
Invention and in what manner the same is to be performed, I declare that what
I claim 18
The improved appliances for and mode of connecting clamping and holding the
cable wires and conductors used in the transmission of electric currents substantially
as herein described and shewn
Dated this 31st day of December 1885
JAMES STEVENSON,
Gray's Inn Chambers, 20, High Holborn, WC,
Agent for Applicant.