An Improved Electric Connecting Device, applicable to Electroliers, Electric Light Standards, Brackets, and the like.
Year: 1895

page_text: Date of Application, 22nd Aug., 1895
Complete Specification Left, 25th Sept., 1895-Accepted, 4th Jan.,
1896
An Improved Electric Connecting Device, applicable to Electroliers,
Electric Light Standards, Brackets, and the like.
I ROBERT WALTER BRAHAM of 76 St. Agnes Place, Kennington, in 'the
County of Surrey, and 60 Red Lion Street, Clerkenwell in the County of
Middlesex, Metal Spinner and Electrical Brass Finisher do hereby declare the
nature of this invention to be as follows:-
My invention relates to improved means whereby electroliers electric light
standards brackets or the like may be pulled up or down, raised or lowered without
in any way interfering with the contact.
It has been found in practice that the rise and fall electric light fittings at present
in use have objections, inasmuch as the electric wires are exposed to view which is
very objectionable and the strain of the counterweight, upon the wires, being very
great, is liable to break them thereby causing injury.
With the aid of my
improvements this is entirely obviated.
In carrying my invention into practice I take two ordinary pieces of tube similar
to that of an ordinary gas chandelier, one piece being made larger to allow the other
to slide freely therein. The lower or larger piece of tube in which the smaller piece
slides is insulated its entire length, with vulcanite or any similar nonconductor of
electricity so as to prevent the smaller piece of tube from coming into contact with
In the sides of
the larger tube thereby obviating short circuiting in the tubes.
the insulating material I arrange T shaped grooves or slots, and in the
longitudinal part of the grooves I fix two pieces of metal or any suitable
conductive material.
On the other or smaller portion of tube I arrange at its lowest extremity a
suitable piece of vulcanite or similar nonconductor, into which I fix two small pieces
of metal, which act as springs or prongs and to which I attach the main wires, so
that when the tubes are arranged ready, the portion of the tube with the springs is
caused to slide in the latitudinal portion of the T shaped groove thereby causing
a safe and reliable contact.
For the connections with the lamps I arrange any suitable device but'l preferably
use the method described in my former Patent No. 5998, which can be easily
adapted to take a fuse when necessary.
By these improvements combined with the features described in my former
Specification No. 5998 I shall be able to place a most efficient and reliable
electrolier, standard, bracket or the like upon the market.
Dated this 21st day of August 1895.

page_text: An Improved Electric Connecting Device, applicable to Electroliers,
Electric Light Standards, Brackets, and the like.
I ROBERT WALTER BRAHAM of 76 St. Agnes Place, Kennington in the
County of Surrey and 60 Red Lion Street, Clerkenwell in the County of
Middlesex Metal Spinner and Electrical Brass Finisher 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 improved means whereby electroliers, electric light
standards, brackets or the like may be pulled up or down raised or lowered without
in any way interfering with the contact.
It has been found in practice that the rise and fall electric light fittings at
present in use have objections inasmuch as the electric wires are exposed to view,
which very objectionable also the strain of the counterpoise upon the wires being
very great are liable to collapse thereby, causing injury and damage. With the
use of my improvements, and by the aid of the counterweight and chains shown in
the drawing, these objections are entirely obviated and an electrolier of any weight
may be raised or lowered with perfect ease.
Reference being had to the accompanying drawing in which-
Figure 1 is a sectional view showing the upper portion of my improvements.
Figure 2 is also a sectional view showing the parts together.
Figure 3 is an elevation showing the counterbalance and chains on the same
principle as a gas chandelier.
Letters of reference indicate corresponding parts throughout the drawing.
A, B are two pieces of tube similar to that used in an ordinary gas chandelier,
one piece being made larger to allow the other to slide freely therein. The lower
or larger piece of tube in which smaller tube slides is insulated its entire length
with vulcanite or any suitable nonconductor of electricity C so as to prevent the
sinaller piece of tube A from coming into contact with the larger tube B thereby
obviating short circuiting in the tubes. In the sides of the insulating material
I arrange shaped grooves or slots D, and in the longitudinal part of the grooves
I fix two pieces of metal or any suitable conductive material E. On the sinaller
piece of tube I arrange at its lower extremity a suitable piece of vulcanite Gor
similar nonconductor int, which I fix two small pieces of metal F which act as
springs or prongs and to which I attach the main wires so that when the
tubes A. B are put together the smaller portion with the springs or prongs F
attached, slides in the latitudinal portion of the T shaped groove thereby causing
a safe and reliable contact.
For the connections with the lamps I arrange any suitable device but I
preferably use the method described in my former Patent No. 5998 of 1895,
as it entirely obviates the necessity of soldering and making of joints, which has
been found in practice to be very troublesome thereby causing a considerable waste
of time.
By the improvements above described, combined with the features contained in
my Patent Specification No. 5998 of 1895 I am enabled to place a perfectly reliable
article upon the market.
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 is.
First. An improved electric connecting device consisting of T shaped grooves
or sluts formed in vulcanite or suitable non-conducting material, a strip of metal

page_text: fixed in said grooves, and springs or prongs arranged to slide in the grooves
substantially as and for the purpose described.
Second. In combination with electric light fittings of an improved electric
connecting device consisting of T shaped grooves or slots formed in vulcanite or
suitable non conducting material, a strip of metal arranged in said grooves and
springs or prongs arranged to slide in the grooves substantially as and for the
purpose described.
Dated this 16th day of September 1895.