electro-magnetic motor, the combi- 70
nation, with coil adapted connected
with source alternating currents, a
field-magnet and rotary armature the cores
of which are such relation the coil as
to energized thereby and subdivided 75
laminated such manner produce an
angular displacement their poles the
magnetic lines therein, set forth.
.
NIKOLA TESLA.
iS The cores the disk and field may may
not different magnetic susceptibility—
that say, they may both the same
kind iron, magnetized ap
proximately the same instant the coils D;
2o one may soft iron and the other of
hard,in order that certain time may elapse
between the periods their magnetization. electro-magnetic motor consisting of
a field-magnet, rotary armature, and sin
gle coil adapted connected source 65
of alternating currents and impart magnet
ism both the armature and the field-magnet
with angular displacement the maximum
points, set forth. electro-magnetic motor, the combi
nation, with coil adapted connected 80
with source alternating currents, field-
magnets with laminations lying obliquely to
the plane said coil and circular disk
armature mounted rotate between the field-
magnets,both field and armature being under 85
the magnetizing influence the coil, set
forth. electro-magnetic motor, the combi
nation, with coil adapted connected
with source alternating currents, field-.
Witnesses:
E dward vans,
George Monro. The
plan winding and the principle opera
tion have been fully explained patent,
No. 382,279, May 1888.
I further believe that the first im
part directly, means alternating cur- 55
rent, magnetism the cores the two ele
ments motor, and the direction the
lamination one both the same pro
duce angular displacement the poles or
lines magnetic force the cores, respect- 60
ively. This rotation continued and main
tained the reversals the current coils
D I), which change alternately the polaritj-
of the field-cores This rotary tendency
5 effect will greatly increased lay winding
the disk with conductors closed upon them
selves and having radial direction, whereby
the magnetic intensity the poles the
disk will greatly increased the cnergiz-
io ing effect the currents induced the coils
Gby the alternating currents coils 1).
5.
2.s set forth.
I believe that the first produce ro
tation armature, least such could
be utilized for any general practicable pur
poses, means alternating current pass-
50 ing through single coil several coils act
ing one, and which have direct magnet
izing effect upon the cores both armature
and field, and this claim its broadest sense.
3. 90
magnets with laminations lying obliquely to
the plane the coil and circular disk
armature with spiral concentric lamina
tions mounted between the field-magnets, both
field and armature being under the magnet- 95
izing influence the coil, a.405,858
lelism.
The cores the field and armature may bo
made various ways, will well nnder-
30 stood, being only requisite that the lamina
tions each such direction secure
the necessary angular displacement the
points ofgreatest attraction.
In either case rotation will produced; but
unless the disk provided with the closed
25 energizing-coils desirable that the above-
described difference magnetic suscepti
bility utilized assist its rotation. electro-magnetic motor, the combi
nation, with coil adapted connected to
a source alternating currents, field-
magnet and rotary armature with closed 100
coils thereon, both the field and the armature
being under the magnetizinginfluence said
coil and laminated produce angular dis
placement the poles the two cores.
4.
It will understood that the specific ways
of carrying out this invention are almost with
out number, and that, therefore, not limit
myself the precise form motor which I
45 have heroin shown.
What therefore claim is—
1. Moreover, since
the disk maybe considered made an
35 infinite number radial arms, obvious
that wliat true disk holds, under well-
understood conditions, for many other forms
of armature, and invention this respect
is sense limited the specific form of
40 armature shown
