end
view such motor. Fig.382,280 3
iron shell, which constitutesthe field-mag
net other element the motor. Reference therefore 110
had Figs.
The generator for this motor has this in
stance armature, wound with three
coils, KK'K", sixty degrees apart. The
60 ends these coils are connected,respectively,
to insulated contact rings 0".
The ring suitably mounted shaft, a',
between the poles ITS. Fig. 13. The mode op
eration substantially the same the pre- 100
vious cases, the curreuts traversing the coils
of the motor having the effect turn the disk
D. and 16, Fig.terminals From these terminals the
currents are led the terminals the motor,
as shown the drawings. This effect sets rotation the
30 armature,owing totheattractiveforcebetween
the shell and the poles the armature; but
inasmuch the coils this case move rela
tively the shell field-magnet the move
ment the coils the opposite direction
35 the progressive shifting the poles. 105
In the forms motor above described only
one the elements—the armature the field-
magnet—is provided with energizing-coils.. diagram the cir
cuit-connections. end view the generator with
its field-magnets section. This shell
is preferably formed with slot opening, r;
but may continuous, shown the
5 dotted lines, and this event preferably
made steel.
Now, obvious from consideration of
the preceding figures that the rotation the
25 generator-ring produces currents the coils
F F', which, being transmitted the motor-
coils,impart the core the latter magnetic
poles constantly shifting whirling around
the core. this case 80
a disk,- magnetic metal, preferably cut
away opposite edges, shown dotted
lines the figure, mounted turn
freely inside two stationary coils,N' N",placed
at right angles one another. 11.
The peculiar advantage this disposition is
in obtaining more concentrated and power
ful field. The application this principle to
systems involving multiple circuits generally 75
will understood from this apparatus. ahori
zontal cross-section themotor. Thatshown con
sists revolving permanent electro-mag-. The diametrically opposite pairs 120
coils are connected series and the freeends
connected four terminals, to, the rule be
followed connecting being the same here-
inbeforeexplained.
Other arrangements the coils both gen
erator and motor are possible, and greater
number circuits may used, will be
seen the two succeeding figures,
to Fig. the present instance ft
consists field-magnet, and arma
ture, with two coils right angles, the
ends which are connected four contact-
.
Fig. Fig.
net, and four independent stationary mag
nets, P', wound with coils, those diamet
rically opposite each other being connected 95
in series and having their ends secured the
. The coils are 85
preferably wound frame, insulating
materiál, and their ends are connected the
fixed terminals The generator is
a representative that class alternating-
current machines which stationary in- 90
duced element employed. similar
view the generator, with'the field-magnets
in section; and Fig. Fig. The contact-rings of
each pair generator coils are connected to
those the motor, respectively, means of
2o contact-brushes and the two pairsof conduct
ors, and 1/, indicated diagrammat-
ically Fig. 17, 18, and 19.
The generator for this motor may any
suitable kind produce currents the de- 130
sired character. the field-magnet 115. This leaves six free ends,which
are connected the terminals T"T". Two
segments the same are cot aWay, shown.
The armature which mounted rotate be
tween the poles cylinder disk, of
55 wrought-irou, mounted the shaft a. Anarmature,D,with two
coils, hf, right angles each other, 125
mounted rotate inside the field-magnet
R. is
a diagrammatic representation modified
disposition invention. gen
erator for driving this motor, may use the
to device shown Fig. The variations the strength and di
rection the currents transmitted through
theae circuits and traversing the coils the
motor produce steadily-progressive shifting
of the resultant attractiveforce exerted the
poles upon the armature and conse- 7c
quently keep the armature rapidly rotating.
45 The field the motor produced six
magnetic poles, G'G', secured projecting
from ring frame, These magnets or
poles are wound with insulated coils, those
diametrically oppositeto each otherbeing con-
50 nected pairs,so produce opposite poles
in each pair. This mode carrying out the invention
has the advantage dispensing with the slid
ing contacts the system. also desirable that this
shell 8h0nld divided similarly the
armature,and for similar reasons. diagrammatic illustration a
motor and generator connected and con
structed accordance with invention. The ends the armature-coils are con
nected two pairs contact-rings^ <
T
. It
remains, then, show how both elements may
be wound with coils.- These
rings are connected those the motor in
proper order means collecting-brushes
and six wires, forming three independent cir-
65 cuits. This represents an
annular ring armature, surrounded by
four coils, F', which those diamet
rically opposite are connected series, so
that four free ends are left, which are con-
15 nected the insulated contact-rings bbb' V.
Referring now Figs.
of the motor consists ring, It, preferably
of thin insulated iron sheets bands, with
eight pole-pieces, and corresponding re
cesses which four pairs coils, are
wound
