Year: 1888

page_text: Date of Application, 23rd Jan., 1888
Complete Specification Left, 9th Oct., 1888
Complete Specification Accepted, 9th Nov., 1888
1, ALFRED MILLS TAYLOR of 131 High Road, Lee, London, S.E. in the County
of Kent Electrician do hereby declare the nature of this invention to be as follows:-
This invention relates to means of compensating for the effects produced in a
system, where a constant electrical current is maintained in a primary circuit and in
which various inductors are arranged in series, when great changes are made in the
number of lamps used, these lamps being arranged parallel in the secondary circuits
of the inductors.
For this purpose, in a shunt from the primary circuit there is introduced a coil of
very low resistance wound on an independent iron core the number of convolutions of
the coil being sufficient to saturate the core, and the self induced electro-motive force
of this shunt being so proportioned to that of the primary inductor coil that from one
tenth to one fifth of the primary current will pass by the shunt, the remaining nino
tenths or four fifths passing through the primary coil of the inductor when all the
lamps are worked by the induced currents in the secondary coil of the inductor. When
the number of lamps in use is more and more reduced, more and more current passes
through the shunt coil; and when the lamps are all switched off, so that no secondary
currents are produced, almost the whole of the primary current passes through the
shunt coil, the primary current being thus kept constant.
:
The core of the shunt coil may be wound with a few convolutions of the secondary
wire from the inductor, or the coil on this core may be entirely in a shunt from the
secondary circuit; or it may consist of convolutions from both circuits; but it is
proferred to arrange the coil entirely in a shunt from the primary circuit as above
described.
The core of the shunt may be made of special form, with a locally reduced section
of its iron, in such manner that it can be saturated by fewer convolutions and therefore
more economically.
ABEL & IMRAY,
Agents for the Applicant.

page_text: An Improvement in Electrical Transforming Apparatus.
I, ALFRED MILLS TAYLOR of 131 High Road, Lee, London, S.E. in the County
of Kent, Electrician 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 relates to means of compensating for the effects produced in a system
where a constant electrical alternating current is maintained in a primary circuit and
in which various inductors are arranged in series when great changes are made in the
number of lamps used, these lamps being arranged parallel in the secondary circuits
of the inductors.
For this purpose, in a shunt from each of the primary inductor coils there is
introduced a coil of very low resistance wound on an independent iron core, the
number of convolutions of the coil being sufficient to nearly saturate the core and
the self induced electromotive force of this shunt being so proportioned to that of the
primary inductor coil that from one tenth to one fifth of the primary current will pass
by the shunt, the remaining nine tenths or four fifths passing through the primary
coil of the inductor when all the lamps are worked by the induced currents in the
secondary coil of the inductor. When the number of lamps in use is more and more
reduced, more and more current passes through the shunt coil, and when the lamps
are all switched off, so that no secondary currents are produced, almost the whole of
the primary current passes through the shunt coil, the primary current being thus
kept constant.
The core of the shunt coil may be further wound with a few convolutions of the
secondary wire from the inductor or the coil on this core may be entirely in a shunt
from the secondary circuit, or it may consist of convolutions from both circuits, but it
is preferred to arrange the coil in a shunt from the primary inductor with a few con-
volutions, if necessary, from the secondary coil.
Having now particularly described and ascertained the nature of this invention
and in what manner the same is to be performed I declare that what I claim is :-
In combination with each of a number of inductors having their primariy coils
connected in series for passage of alternating electrical currents, and their secondary
coils connected parallel to groups of lamps, an independent iron core wound with a
coil of low resistance in shunt from the primary inductor coil, with or without
separate convolutions connected to the secondary, substantially as and for the purpose
herein set forth.
Dated this ol 1
1000