Improvements in Electro-magnetic Regulating and Actuating Mechanism.
Year: 1896

page_text: Date of Application, 4th Mar., 1896
Complete Specification Left, 4th Dec., 1896-Accepted, 3rd May, 1897
PROVISIONAL SPECIFICATION.
Improvements in Electro-magnetic Regulating and Actuating
Mechanism.
1, REGINA NIEWERTH, of Chaussee Strasse, Berlin, Prussia, Married, do
hereby declare the nature of this invention to be as follows:-
All apparatus that are based upon the principle that the mechanism in any
manner regulating, or in any way driving or generating the required magnetism,
works upon an iron core, (armature), suffer from the disadvantage, that, as for
example, in arc lamps there must always exist a considerable difference in the
intensity of the magnetism before an alteration in the position of the armature
influenced by the magnetism takes place, because the lines of magnetic force are
unfavourably dispersed. To obviate this disadvantage is the purpose of the
invention hereafter described, and from the many cases to which the invention can
be applied, I will select and describe its application to a shunt urrent arc lamp
with fixed magnet and oscillating armature.
'
The general construction of the lamp remains exactly the same but there is added
a small hammer driven by any kind of mechanism which strikes at short fixed
intervals upon the armature of the regulating mechanism.
It will of course be understood that the action obtained by the direct stroke may
be produced by any other method, for example, by the rapid opening and closing
of the whole or a part of the current which pulsates through the shunt current
magnet, or in any other manner which effects the object.
The effect is notable; an arc lamp for instance which ordinarily is regulated
with, for example, 5 or 6 volts variation, will if fitted with this invention work
without any visible variation with different voltages, even on the application of the
finest measuring instruments.
Dated this 4th day of March 1896
FREDERIC PRINCE,
Agent for Applicant.
COMPLETE SPECIFICATION.
Improvements in Electro-magnetic Regulating and Actuating
Mechanism.
I, REGINA NIEWERTH, of Chaussee Strasse, Berlin, Prussia, Married, 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:-
All apparatus that are based upon the principle that the mechanism in any
manner regulating, driving or generating the required magnetism, works upon an
iron core, suffer from the disadvantages, that as for example in arc lamps, there
must always exist a considerable difference in the intensity of the magnetisin before

page_text: an alteration in the position of the armature influenced by the magnetism takes
place, because the lines of magnetic force are unfavourably dispersed. To obviate
this disadvantage is the purpose of the invention hereafter described, and from the
many cases to which the invention can be applied we will select and describe its
application to a shunt current are lamp with fixed magnet and oscillating
armature.
The general construction of the lamp remains exactly the same but there is
added a small hammer driven by any kind of mechanism which strikes at short
fixed intervals upon the armature of the regulating mechanism.
It will of course be understood, that the action obtained by the direct stroke
may be produced by any other method, for example, by the rapid opening and
closing of the whole or a part of the current which pulsates through the shunt
current magnet.
The effect is notable, an arc lamp for instance which ordinarily is regulated with,
for example, 5 or 6 volts variations, will if fitted with this invention work without
any visible variation with different voltages, even on the application of the finest
measuring instruments.
The accompanying drawing illustrates diagramatically two ways of carrying the
improvements into effect.
Fig. 1 (side view) and Fig. 2 (plan) relate to the hammer arrangement and
Figs. 3 and 4 to an arrangement for rapidly opening and closing part of the
current.
Referring to Fig. 1, a and a' are the regulating electro magnets b a lever actuated
by the electro-magnet for releasing the roller e. On the roller e is mounted a
band g carrying the upper carbon holder f which is released in the well-known
manner. On lever b gearing his provided which operates the bammer i that it
will strike the armature 6' at short intervals, to impart continuous vibration
thereto.
The second form illustrated in Figs. 3 and 4 acts as follows:-
By the side of the regulating magnets a and a' are mounted the two magnets ll
arranged as follows:-
The regulating magnets are connected with the positive and negative poles as
indicated in the drawings, the subsidiary magnet is connected with the positive
pole and then with magnet so that a horseshoe magnet is formed thereby.
From the current passes, through the insulated pillar m by spring n to o and
thence by way of the pillar p (likewise insulated) to the coil a of the regulator
magnets and so to the negative pole.
When current passes through the magnets the coils thereon become magnetic
pull down the spring n thereby breaking the current, it being interrupted at the
spring 2. By these means contact is made and broken in rapid intervals so that
the force of current in the main regulating magnets also varies whereby vibration
of the armature of said main regulating magnets is produced.
Having now particularly described and ascertained the nature of this inven
tion and in what manner the same is to be performed, I declare that what I
claim is:
1. An electro magnetic regulator consisting of a pivotted striker operated by the
upper carbon controlling device or by clockwork to strike upon the armature of the
regulating mechanism, as herein before described.
2. The means described with reference to Figs. 3 and 4 for rapidly interrupting
the passage of the current.
Dated this 4th day of December 1896.
FREDERIC PRINCE,
37 Cursitor Street, London, Agent for Applicant.