Improvements in Electric Couplings.
Year: 1895

page_text: Date of Application, 15th Mar., 1895
Complete Specification Left, 16th Dec., 1895-Accepted, 18th Jan., 1896
PROVISIONAL SPECIFICATION.
Improvements in Electric Couplings.
I, OCTAVIUS MARCH, of 70 Sinclair Road, Kensington, in the County of
London, Electrical Engineer, do hereby declare the nature of this invention to be
as follows:-
:-
This invention for improvements in electric couplings has for its object to provide
a swivel coupling for twin or multiple conductors and consists essentially of a series
of co-axial insulated conducting cylinders on one part of the coupling and corre-
sponding co-axial insulated and elastic conducting cylinders on the other part of
the coupling, the said two parts being provided with spring interlocking parts.
adapted to permit of the swivelling motion. The elastic conducting cylinders may
be conducting cylinders with divided ends forming a series of tongues and the
outer elastic cylinder may have an outwardly projecting lip on its outer end taking
into a corresponding groove in the outer cylinder of the other part of the coupling..
The central cylinder may be attached to a central brush taking into a corresponding
tube in the other part of the coupling.
Dated this 15th day of March 1895.
WHEATLEY & MACKENZIE,
40 Chancery Lane, London, W.C., Agents.
Improvements in Electric Couplings.
I, OCTAVIUS MARCH, of 70 Sinclair Road, Kensington, in the County of
London 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 :--
This invention for improvements in electric couplings has for its object to provide
a swivel coupling for twin or multiple conductors and consists essentially of a series
of co-axial insulated conducting cylinders on one part of the coupling and corre
sponding co-axial insulated and elastic conducting cylinders on the other part of
the coupling, the said two parts being provided with spring interlocking parts
adapted to permit of the swivelling motion. The elastic conducting cylinders may.
be conducting cylinders with divided ends forming a series of tongues and the
outer elastic cylinder may have an outwardly projecting lip on its cuter end taking
into a corresponding groove in the outer cylinder of the other part of the coupling.
The central cylinder may be attached to a central brush taking into a corresponding
tube in the other part of the coupling.
In the accompanying sheet of illustrative drawings:-
:-
Fig. 1 is an elevation of a pair of electrically heated curling tongs shewing this
improved electric coupling applied so that the tongs can be manipulated by the
user without twisting or otherwise entangling the electric cable or conductors and
Fig. 2 is a longitudinal section of the coupling.
The insulating handle a of the curling tongs is fitted internally with a metallio
cylinder g having at its outer end spring tongs h formed with outwardly projecting

page_text: lips . Within the cylinder g is an insulating cylinder m and within the cylinder m
is a metallic tube e.
The other part of the coupling comprises the insulating casing f fitted internally
with a metallic cylinder provided with an internal circumferential groove e.
Fitting in the cylinder b is an insulating cylinder d and within the cylinder d is a
conducting cylinder n to which is attached a conducting brush o. The parts are
so arranged and proportioned that when the parts of the coupling are connected
the brush o passes into the tube e and makes contact therewith; and the spring
tongspass into the cylinder 6 and its lips 1 engage in the groove c and make
contact therewith and hold the parts in engagement. The brush o and cylinder b
are connected to the external leads r and the cylinders g and tube e to the
conductors leading to the electric heater. In a similar manner a coupling is
made for three conductors, an intermediate insulating conducting cylinder being
inserted in each part and having spring tongs making contact with the internal
surface of the other.
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 :-
1. A swivelling electric coupling, consisting of a series of co-axial insulated
conducting bodies on one part of the coupling, a corresponding series of co-axial
insulated conducting bodies on the other part, adapted to make contact with the
bodies in the first part, and spring interlocking parts adapted to engage and hold
the two parts of the coupling together in such manner that the parts can swivel
freely.
2. The improvements in electric swivelling couplings substantially as described
with reference to the drawings.
Dated this 16th day of December 1895
WHEATLEY & MACKENZIE,
40 Chancery Lane, London, W.C., Agents..