5
ing independent inducing energizing cir
cuits and closed induced circuits, alter
nating-current generator having induced or
generating circuits corresponding and con
nected with the energizing-circuits the mo- 50
tor, set forth.
If borne mind that dynamo-elec
tric machine the energy developed very
nearly proportionate the cube the speed,
it evident that such moment extra-
20 ordinary power brought play reversing
the motor. This will understood from con
ic siderationof the working conditions.
NIKOLA TESLA. motor constructed with annular
field-magnet wound with independent coils 60
and cylindrical disk armature wound with
closed coils, combination with source of
alternating currents connected with the field-
magnet coils and acting progressively shift
or rotate the poles the field, herein set
forth.382,279 3
I prior application, may short-circuiting
the armature-coils apply the present invention
in order obtain greater power starting. The combination, with motor contain- (. addition this the resistance
of the motor very greatly reduced the
moment reversal, that much greater
amount current passes through the energiz-
25 ing-circuits.
These motors presentnumerous advantages,
chief among which are their simplicity, relia
bility, economy construction and mainte
nance, and their easy and dangerless manage-
35 ment. commutators are required on
either the generators the motors, thesystem
is cápable ofa very perfect action and involves
but little loss.
3.
I not claim herein the mode plan of
producing currents closed conductors 40
magnetic field which herein disclosed,except
in its application this particular purpose;
but
What claim is—
1. Assum
ing the armature rotating certain di
rection followingthe movement the shifting
poles, then reverse the direction the shift
ing,which may done reversing the con-
15 nections one the two energizing-circuits., the varia
tion the resistance the motor apparently
like that ordinary motors—I attribute the
variation the amount self-induction in
30 the primary energizing circuits.
1
1
I
.
The phenomenon alluded to—viz.
2. electro -magnetic motor having its
field-magnets wound with independent coils
and its armature with independent closed coils,
in combination with source alternating 55
currents connected the field-coils and capa
ble progressively shifting the poles the
field-magnet, set forth.
An advantage and characteristic feature of
5 motors constructed and operated accordance
with this invention their capability al
most instantaneous reversal reversal of
one the energizing-currents from the gen
erator.
Witnesses:
Frank Murphy,
Frank Hartley
