close

Вход

Забыли?

вход по аккаунту

?

Патент USA US2412676

код для вставки
1366- 17, 1945-
L.'A. DUNAJEFF
2,412,676
SYNGHRQNIZE-D MOTOR CONTROL
Filed Dec. 16, 1944
2 Sheets-Sheet l
.ZEON/DA..DUNAJEFF
IN VEN TOR..
g4” -/' WM»
Patented Dec. 17, 1946
‘2,412,675
UNITED STATES PATENT OFFICE
2,412,676
v._SYNCHR0I~IF.ZED MOTOR CONTROL
Leonid A.~Dunajeff, Havre de Grace, Md.
Application December 16, 1944, Serial No. 568,479
14 Claims.
(01. 172-293)
1
2
My invention relates to means and methods '
pinion 4 .and gear 5 or by other suitable trans
for synchronizing rotation of two bodies such as
mission. The commutator comprises .a plurality
shafts or motors and has particular reference to
of segmented, G’ separated by gaps. The seg
placing a remotely located working shaft in any
ments .are divided in two groups, segments is‘ of
desired position or to keep it in continuous mo UK one group alternating with the segments 6’ of
tion synchronously with a piloting shaft.
the other group, both groups being insulated
My invention has for its object to provide an
from each other. The segments 6 of one group
electrical connection between a shaft connected
are electrically connected together by a collector
to va useful load and a controlling shaft in such
ring 9, and the segments of the other group are
a manner that any motion of one of these shafts 10 connected together by agcollector ring H). The
is repeated ‘by the other shaft in successive steps,
ring I0 is engaged by a contact brush H con
so thatthe load shaft will follow .the movements
nected by a lead l2, magnet .9, coil I3, and lead
of the piloting shaft.
54 to one terminal of the motor i, and the ring
Alternating motions ‘of both shafts are regu
,IB is engaged by a brush 15 connected by a lead
lated by two rotary switches of special design,
20 to one terminal of the second motor 2|.
which reciprocally provide electrical connections
The receiver II is similar to the transmitter
at both sides; making all motions depending on
and consists of a rotary commutator 22 on a
each other.
shaft 23, rotated by the second motor 2% through
'
The similar motions of both shafts can be
performed in both directions ‘automatically or _
a pinion 25, and gear
The second commuta
tor has two groups of segments, 28, 28’ con
the piloting shaft can be operated manually, the
working shaft following up automatically every
step of the manual movement, starting and stop
nected respectively to collector rings 29, 353. The
ring 29 is engaged by a brush 3|, connected by
leads S2, 33, and coil 34 to the motor 2i. The
pin’:r every time when the piloting shaft is started
or stopped.
With my invention it is possible to provide syn
chronization for shafts driven by electrical mo
tors ‘of different power, as between .the load shaft
driven by a, large power motor, the piloting
shaft being driven by a small motor capable only
to move indicating devices.
My invention is more fully explained in the
accompanying speci?cation and illustrations in
which:
Fig. 1
through a switch 39 to one terminal of a source
of electric current Gil, the other terminal being
connected by a lead 45 to a brush 45, engaging
segments 23, 23’. The motors are therefore
alternately energized when the brushes 3? and
155 pass from one segment to another.
Resistors VM and 48 may be provided between
the groups of the segments 5, 6' and 28, 28’, so
is .a diagrammatic view of my control 3. Ll that both the motors will run all the time, but
system with two synchronized motors
Fig. 2 is a modi?cation of the same in which
an additional escapement synchronizing ar~
rang'ement is provided;
device;
Figs. 4, ,5, and 6 are diagrammatic views of the
successive’ relative positions of the contact seg
ments and escapement device;
Fig. 7 is 'a modi?ed view of a system with a -
manual control;
Fig. 8 is a sectional detail-view of a manual
control device.
at alternately fluctuating speeds, slow speed
through the resistors and high speed when the
resistors are short circuited.
To avoid any errors in my synchronizing
Fig. 3 is a'fractional View of an escapement .1
" '
As is shown in Figs. 1 and
the controlling
system consists ‘of a transmitter, generally desig- .
nated as ‘I, and a receiver, generally designated
as II.
ring 39 is engaged by a brush 35 connected by a
The segments 6, 6’ are
engaged by a brush 37, connected by a lead 38,
in ‘at lead 36 to the motor 1.
“ ’
The transmitter comprises a pilot motor 5 and
a rotary commutator 2 on a shaft 3.’ The com
method, and to eliminate
inertia effect,
thereby assuring a high degree of accuracy, I
employ an escapement mechanism for positively
stopping the motors at the moments of the cur
rent interruption.
As shown in Fig. 3, the magnet coil 13 included
in the circuit between the leads l2 and H, at
tracts an armature 59 when energized. The ar
mature carries a plate 5! with teeth 52 at one
end and a .tooth 52 at the other end.
A spring
53 urges ‘the plate outwards, the movement be
ing limited by a collar 54 on a shaft 55 of the
armature] In this position of the plate 5!, one
of the teeth 52 engages‘one of the pins 56 ex
tending from the side of the commutator 2.
mutator is operated by "the motor through a .» When the plate'is attracted by the magnet the
2,412,676
4
tooth 53’ engages one of the pins 56. The pins
are spaced according to the spacing of the large
segments 6 and 28.
To enable the shafts 3, 23 to rotate continua
ously while the commutators are being started
and stopped by the teeth 52, 53, the commutators
are mounted loosely on the shafts and are cou~
possibility of any of the pins passing between the
inner tips of the teeth while the plate 51 is moved
in one or the other direction.
The magnets,
therefore, will positively control the rotation of
the motors by de?nite steps so that motor 21,
regardless of its inherent speed characteristics
or variations in speed due to variations in load
etc. will rotate in a perfect synchronism with the
pled by resilient spring bars ?ll. Each bar 69
passes through a hole in the corresponding shaft
motor I and will be instantly stopped when the
and is engaged by pin 62, extending from the 10 motor I stops.
body of the corresponding commutator. The
Observing the wiring shown in Fig. 1, it can be
shaft 3 or 23 therefore, can continue its rota
seen that the motors, commutators and magnets
tion while the corresponding commutator is held
at both sides are operating in exactly the same
by one of the teeth 52, 53'. Every time the plate
manner, also that the timing is reciprocal, i. e.,
5! is moved by the spring 53, the commutator is
when the motor of one side stops, the other
moved forward by the corresponding spring bar
motor rotates.
(it! and moved back again by the motor when
In view of the fact that the alternate segments
the latter is energized. When the operation is
are connected together, each commutator can
properly adjusted, the shafts will rotate sub
be conveniently made of two discs as shown in
stantially continuously in a perfect synchronism,
Fig. 2. The ?rst commutator comprises discs 65,
developing full torque, while the commutators
6B insulated from each other and from the shaft
will intermittently start and stop.
3. The discs have hubs 9, 10, respectively, serv
The operation of the device can be better un
ing as collector rings for the brushes II, l5.
clerstood from the diagrammatic view of Fig. 1
Disc 65 is provided with long segments or teeth
and Figs. 4, 5 and 6. In the position of the com
6, disc 66 having short segments or teeth 6’, the
mutators as shown in Fig. 1, the commutator 2
has just arrived in the position in which the
brush 31 bridges the gap between the segments 6
and 6', the coresponding spring 60 being de
?ected by the motor torque and resistance of the
pin 56 as shown in Fig. 4.
The magnet coil 1 3 was energized together with
the motor 1 during this movement, holding the
armature 50 attracted so that the teeth 52, 53'
held positions as shown in Fig. 4. The move
ment continued until the nearest pin 56 engaged
the tooth 53'. The spring 60 was then de?ected
by the torque of the motor which continued its
rotation. The motor 1 was energized during its
rotation from the source of curent 40 through 40
the lead 38, brush 3'.', segment 6, ring 9, brush
ll, lead l2, coil 13, lead l4, motor I, lead 36, brush
35, ring 33, segment 28', brush 46, lead 45, switch
teeth being separated by insulation segments 61,
68 respectively. The alternate metal segments
of one disc are equal in length to the insulated
segments of the other disc so that the brush 31,
which is wide enough (or has two contact points)
to engage both discs, passing from one segment
to the next without breaking the circuit. The
second commutator 22 is made in a similar man
ner and consists of two discs 13, ‘H with insulated
segments T2, 13 between the teeth 23, 28'.
The position of the shaft 3 may be indicated by
the pointer 'M on a scale 15, the pointer being
connected to a shaft 3 by gears 16, 11. Similar
gears ‘i8, 79 may be provided to connect the
shaft 23 with a useful load 83. The pointer 74
will then indicate the exact position of the load.
My control system can be also applied to a
manual control of a distant motor as shown in
33 and back to the source of current 40.
Fig. 7.
At the moment when the brush 3'! engaged also
the segment 6', as shown in Fig. 1, the motor 21
versing windings SI', 92, connected by leads 93, 94
became also energized from the source of current
43 through the lead 38, brush 3?, segment 6', ring
in, brush l5, lead 20, motor 2|, lead 33, coil 34,
lead 32, brush 3|, ring 29, segment 28, brush 46, ,
lead 45, and switch 39 to the source of current 150.
The corresponding magnet coil 34 is then also
energized and attracts the plate 5|, releasing the
pin 5'5 from the tooth 53' and advancing the
teeth 53', allowing the commutator 22 to rotate
until the next pin 56 engages the left tooth 52.
rI’he motor 2! is provided with two re
to collector rings 95, 96 respectively of a manual
control device 90. The latter is shown‘more in
detail in Fig. 6 and consists of a base 91 ‘support
ing a casing 98 having an upper wall 99 with a
bearing I36 for a shaft ltl. A knob I02 is se
cured to the upper end of the shaft Hll for
manual rotation of the shaft. The knob is pro
vided with a mark or pointer N33 for indicating
its position on a scale BM (Fig. '7) on the top of
the casing. The lower end of the shaft has an
enlarged portion H35, supporting a friction brake
disc I86. A spring Hill is placed between the top
95 of the casing and the knob-Hi2 for urging the
brush 3%, however, circuit of the motor I becomes
broken and the motor I stops. The coil 12 being
shaft upwards thereby pressing the brake disc
now deenergized, the plate 5| is released, the teeth 60 I03 towards the wall 99. The brake is released
assuming positions shown in Fig. 5. The spring
by manually depressing the knob I32 when it is
As soon as the short segment 28' leaves the
39 causes the commutator 2 to rotate on the
shaft 3 until the next pin 56 is stopped by the
tooth 52 as shown in Fig. 5 and the brush 31 being
then in a position shown in Fig. 5.
The motor 2| will continue its rotation until
the next pin 53 is engaged by the left tooth 52 as
was mentioned before,
,
The alternating intermittent rotation of the
two commutators and the substantialy continu
ous rotation of the shafts will be stopped when
one of the shafts is stopped or when the circuit
is disconnected.
.
The distance between the inner ends of the
teeth 52 is made sufficiently small to prevent the
desired to rotate the knob. Theshaft llll car
ries a contact arm i it’ having contact points H3,
H4 connected by leads 93, 94 (Fig. 5) to motor
windings SH, 92. The arm H3’ is insulated from
the knob £92. The contact points straddle a
contact arm I H}, rotatively mounted on the shaft
68' and insulated therefrom. The arm is elec
trically connected to the hub 81 of the disc 80.
A clock spring lid is connected at one end to the
disc 80, the other end of the spring being con
nected to the member llll.
For causing the motor 2i to move, the knob I32
is turned to the right or to the left in a desired’
position as indicated on the scale I84, by depress
2,412,676
5
ing the knob torelease the brake N16. --The brake
llocksthe shaft 10! as soon as the pressure .on the
6
other motor terminal being arranged to be elec
trically .connectedwith the odd numbered seg
knob Hi2~ is released, leaving the knob with the
ments of the other pair, one terminal of the ro
contact arms H6 and He’ in a desired position.
The pressure of the spring will cause the corre
sponding contact point H3 or H4 to ‘engage ‘the
tatingmeans being arranged to be connected with
the even segments of one pair, the other terminal
of the moving means being arranged to be con
.contact'arm MD, energizing the motor I through
nected with the even segments of the other pair,
one .or the other of the windings 9! or 92. If, ‘for
the motor being thereby successively started and
stopped in step by step movement to effect the
instance, the contact point I14 is engaged (Fig.7),
c'urrent'will ?ow from the source of current 40 ,10 relative movements of the elements of the ?rst
pair in synchronization with the movements of
the elements of the second pair.
2. A synchronized control apparatus compris
ing a motor at a controlled point adapted to op
through ,the lead 45, brush 45,.segment 26, hub
29,'-brush 31, lead 32, coil'34, lead 33, motor 2,
,WindingBZ, lead S4,‘.brush H9, ring 96, point H4,
.arm H0, lead HI, brush l5, hub l0, tooth 6’,
brush 13,‘! .and lead .38 back to the source of cur
" crate a useful load; a pair of rotatable commu
.rent 40. The motor .2l will rotate .the shaft 23
tating‘members at the controlled point; means
withthe discs 10, 1|, while the magneti?’ is .en
to rotate one of the commutating members by the
.ergi'zed .for a distance, corresponding to the ‘dis
motor; one member comprising a plurality of
tancevbetween the :two teeth .52 of the plate viii,
electrically conductive elements separated by
.thereby placing the brush 4.6 on ,a contact tooth 20 gaps, the other element comprising a contact
28’ of the next .disc 1-6. As a result, the magnet
brush slidably engaging the elements, all odd
l3 will be energized, releasing the discs 65, 66 and
numbered elements being electrically connected
the shaft 3 for rotation fora distance between
together, all even numbered elements being also
two teeth of the plate 5| thereby advancing the
electrically connected together; a second pair of
member l 5 in the “direction of displacement of
relatively rotatable communicating members at
the arm Hill The magnet-34' will be thendeen
a control point; a rotary means to rotate one of
,er'giized, allowing one more step of movement for
the members of the second pair; one member of
themotor 15 under action :of thespring ?ll, The
the second pair comprising a plurality of electri
rotation of the motor and the shafts 3, 23 will
cally conductive elements, the other member of
continue untilthe member 1! 5-is aligned with the
the second pair comprising a brush slidably en
.arm H0 thereby releasing the contact point H4
gaging the elements, all even numbered ele
from the arm Jill} and disconnecting the motor
ments of the second pair being electrically con
"circuit.
nected together, all odd numbered elements being
It will beunderstood that various features and
also electrically connected together; the two
principles of each of the embodiments of the in~
brushes being arranged to be connected to the
,ven'tion above described or referred to :may be
utilized or vsubstituted in ‘the other embodiments.
While the invention has been described .in de
tail with respect to certain particular preferred
eiramples, it willbe understood-by those skilledin
the art after understan'dingitheinvention, that
'various changes and further modi?cations may
be made without departing lromrthe spirit and
opposite poles of a source of current; one termi
nal of the motor being arranged to be electrically
connected with the odd numbered elements of one
pair, the other motor terminal being arranged to
v‘be electrically connected with the odd numbered
elements of the other pair, the rotating means
being arranged to be connected with the even
elements of one pair and with the even elements
of the other pair, the motor being thereby suc
scope of the invention, and it isintended there
fore in the appended claims ‘to cover all such 45 cessively moved step by step in synchronism with
changes and modi?cations.
'
What is claimed as new ‘and desired-to ‘be se
cured by Letters Patent is:
‘1. A ‘synchronized control apparatus compris
ing a motor at a controlled point ‘adapted to op
the movements of the movable member of the
second pair; and means to positively stop the rel
ative movements of the ?rst pair at the end of
each step.
3. A synchronized control apparatus compris
ing a motor at a controlled point adapted to
operate a useful load; a pair of rotatable com
co'mm'utating ‘elements at't'he controlled point;
mutating members at the controlled point; means
means to eiiect a relative movement between the
to rotate one of the commutating members by
commutating ‘elements by the motor; one ele
ment comprising a plurality of electrically con 55 the motor; one member comprising a plurality
ductive vsegments separated by gaps, the other
of electrically conductive elements separated by
element comprising a contact brush slidably en
gaps, the other element comprising a contact
erate a useful load; 'a pair (ii-‘relatively rotatable
gaging thehsegmen'ts, all odd numbered segments
brush slidably engaging the elements, all odd
being electrically connected together, and all even
numbered elements being electrically connected
numbered segments being electrically connected 60 together, all even numbered elements being also
together; a second pair of relatively rotatable
electrically connected together; a second pair of
relatively rotatable commutating members at a
control point; a rotary means to rotate one of
the members of the second pair; one member of
‘the second pair comprisinga plurality of electri~ 65 the second pair comprising a plurality of elec
commutating elements at a control point; a, ro
tary means to effect arelative movement between
the elements of the second pair; one element of
cally conductive segments, the other element of
trically conductive elements, the other member
the second. pair comprising‘ a brush slidably en
being arranged to be connected to the opposite
the second pair comprising a, brush slidably en
gaging the elements, all even numbered elements
of the second pair being electrically connected
together, all odd numbered elements being also
electrically connected together; the two brushes
being arranged to be connected to the opposite
poles of a source of current; one terminal "of the
poles of a ‘source of current, one terminal of the
gaging the segments, all. even numbered segments
‘of'th'e second pair being electrically connected
together, all odd numbered segments being also ‘
electrically connected together; the two brushes
Lmot'o r being arranged to be electrically connected
motor being arranged to be electrically connected
Twith'the odd numbered segments .of one'pain'the 75 withtheodd numbered elements of onepair, the
2,412,676
7
8
other motor terminal being arranged to be elec
trically connected with the odd numbered ele
ments of the other pair, the rotating means being
of current; one terminal of the motor being ar
ranged to be electrically connected ‘with the odd
numbered elements of one pair, the other motor
terminal being arranged to be electrically con
nected with the odd numbered elements of the
other pair, the rotating means being arranged
to be connected with the even elements of one
pair, and with the even elements of the other
' arranged to be connected with the even elements
of one pair and with the even elements of the
other pair, the motor being thereby successively
moved alternately with the starting and stop
ping of the moving means, the motor being there
by caused to rotate in synchronism with the ro
tation of the moving means.
pair, the motor being thereby successively moved
step by step in synchronism with the movements
>
4. A synchronized control apparatus compris
of the movable member of the second pair; and
ing a motor at a controlled point adapted to op
erate a useful load; a pair of rotatable com
means included in the moving means to control
the direction of rotation of the motor and to
stop the motor.
'
mutating members‘ at the controlled point; means
6. A synchronized control apparatus compris
to rotate one of the commutating members by 15
ing a reversible motor at a controlled point
the motor; one member comprising 9, plurality
of electrically conductive elements separated by
adapted to operate a useful load; a pair of ro
tatable commutating members at the controlled
,gaps, the other element comprising a contact
point; means to rotate one of the commutating
brush slidably engaging the elements, all odd
numbered elements being electrically connected 20 members by the motor; one member comprising
a plurality of electrically conductive elements sep
together, all even numbered elements being also
arated by gaps, the other element comprising a
electrically connected together; a second pair of
contact brush slidably engaging the elements, all
relatively rotatable commutating members at a
odd numbered elements being electrically con
control point; a rotary means to rotate one of
nected together, all even numbered elements be
the members of the second pair; one member
of the second pair comprising a plurality of elec
trically conductive elements, the other member
of the second pair comprising a brush slidably
engaging the elements, all even numbered ele
ments of the second pair being electrically con
nected together, all odd numbered elements being
also electrically connected together; the two
brushes being arranged to be connected to the
ing also electrically connected together; ‘a sec
ond pair of relatively rotatable commutating
members at a control point; a rotary means to
rotate one of the members of the second pair;
one member of the second pair comprising a plu
rality ofelectrically conductive elements, the
oposite poles of a source of current; one termi
nal of the motor being arranged to be elec
trically connected with the odd numbered ele
ment of one pair, the other motor terminal being
arranged to be electrically connected with the
odd numbered elements of the other pair, the
rotating means being arranged to be connected re
other member of. the second pair comprising a
brush slidably engaging the elements, all even
numbered elements of the second pair being elec
trically connected together, all odd numbered ele
ments being also electrically connected together;
thetwo brushes being arranged to be connected
to the opposite poles of a source of current; one
terminalof the motor being arranged to be elec
trically connected with the odd numbered ele
ments of one pair, the other motor terminal being
with the even elements of one pair and with the
arranged to be electrically connected with the odd
even elements of the other pair, the motor being
numbered elements of the other pair, the rotat
thereby successively moved alternately with the
ing means being arranged to be connected with,
starting and stopping of the moving means, the
motor being thereby caused to rotate in syn .45 the even elements of one pair, and with the even’
elements of the other pair, the motor being there
chronism with the rotation of the moving means;
by successively move'd step by step in synchro
and electromagnetic means periodically and
nism with the movements of the moveable mem
momentarily to stop the motor in response to
ber of the second pair; a pair of control elements
the motor being energized and deenergized and
to release the motor for movement in steps be 50 associated with the moving means, one control
element comprising a pair of contact points Sep-n
tween the stopping moments,
arated by a gap, the other control element com
5. A synchronized control apparatus compris
ing a reversible motor at a controlled point
adapted to operate a useful load; a pair of rotat
able commutating members at the controlled
point; means to rotate one of the commutating
prising a contact arm for alternately engaging the
contact points, the moving means including a
spring for urging the contact points to-occupy
a neutral position with the contact arm occupy
ing the gap.‘
members by the motor; one member comprising
7. A synchronized control apparatus compris
a plurality of electrically conductive elements
ing a motor at a controlled point adapted to'op
separated by gaps, the other element compris
ing a contact brush slidably engaging the ele 60 crate a useful load; a pair of rotatable commu
tating members, at the controlled point; means to
ments, all odd numbered elements being elec
rotate one of the commutating members by the
trically connected together, all even numbered
elements being also electrically connected to- v motor; one member comprising a plurality of
electrically conductive elements separated by
gether; a second pair of relatively rotatable com
mutating members at a control point; a rotary 65 gaps, the other element comprising a contact
brush slidably engaging the elements, all odd
means to rotate one or" the members of the sec—
numbered elements being electrically connected
ond pair; one member of the second pair com
together, all even numbered elements being also
prising a plurality of electrically conductive ele
electrically connected together; a second pair of
ments, the other member of the second pair com
relatively ‘rotatable commutating members at a
prising a brush slidably engaging the elements,
control point; a rotary means to rotate one of
all even numbered elements of the second pair
the members of the second pair; one member of
being electrically connected together, all odd
the second pair comprising a plurality of elec
numbered elements being also electrically con
nected together; the two brushes being arranged
to be connected to theopposite vpoles of a source
trically conductive elements, the other member
' of the second pair comprising a brush’slidably
9
10
engaging the elements, all: even numbered ele
ments' of the second pair being electrically con
motor,;one'member of'the'second pair. comprising
nected together, all odd numbered elementsbeing
other member of the second pair comprising a
brush‘ slidably engaging the elements, all even
numbered elements'at the second pair being elec
a plurality of electrically conductive elements, the
also electrically connected together; the two
brushes being arranged to be connected to the
opposite‘ poles of a source of current; one terminal
trically connected together‘, all odd numbered ele~
ments' of‘ the second pair being electrically con
nected together, the two brushes being arranged
of the motor being arranged to be electrically con~
nected with the odd numbered elements of one
pair, the other motor terminal being_ arranged to
be electrically connected with the odd numbered
elements of the other pair, the rotating means'be
ing arranged to be connected with the even. ele
to be connected to a source of current, one motor
being alt'einately connected in a circuit with‘ the
even and odd numbered elements of both pairs
and the. other motor is alternately connected with
the odd and even numbered elements, the motor
ments of one pair and with the even elements of
the other pair, the moving means being thereby
being thereby alternately energized for rotation
rendered operative in response to the brushes
in steps; corresponding to the spacing of the ele—
engaging the even numbered segments of both
ments and being. thereby caused to rotate syn
pairs until the rotatable element of the second
chronously witheach other; magnets associated
pair is moved through a predetermined distance
with the. commutators; movable armatures oper~
for causing the corresponding brush to engage the
ated by the magnets; detent means carried jointly
oddv segment thereby causing the moving means 20 by the. armatures and by the commutators, the
to stop and energize the motor for causing the
magnets: being. included in the respective motor
rotary element of the ?rst pair to move through a
circuits, the detent means being arranged to posi~
predetermined distance until the corresponding
tiviely stop the rotation of each commutator mem
brush engages the odd segment, the motor and
ber upon completion of the movement corre
the moving means being thereby periodically and IA sponding to the transition for
corresponding
l
alternately released. for rotation in synchronism .
with each other.
8. A synchronized control apparatus compris
ing a motor at a controlled point adapted to op
brushfrom. one contact element to another.
10. A'synchronized' control apparatus compris
ing a motor at a'controlled point adapted to oper
ate a usefulload; apair of rotatable commutat
erate a useful load; a pair of rotatable commu- 3,; ing members at the controlled point, means to
tating members at the controlled point; means: to
rotate one of the commutating members by the
rotate one of the commutating members by the
motor; one member comprising a plurality of
motor; one member comprising a plurality of
electrically conductive elements separated by
electrically conductive elements separated by
gaps, the other element comprising a contact
gaps, the other element comprising a contact 3
brush slidably engaging the elements, all odd
numbered: elements being. electrically} connected
osereml l‘élvéhsmmberedlelmnsmlwlml 26ml
eiectncaiiymmnectem-togethercn second painter
relatively 'rotatableicommutatingv members-pt
brush slidably engaging the elements, ail odd
numbered elements being electrically connected
together, all‘ even numberedelements being also
ereennenreennscmarlrdgeenereln ldétieiiliiithii?sdh
strangely lrotlata'ble'a‘ necessitate-statesman!an
aeeentreripcinrwsweetener{motor
a" control.‘
control pointya'isecond motor ‘at azcontrol' point; ‘- ' point;v means to rotate one member of the’ second
means to‘ rotate one member of the secondf'pair
pair-by the second motor; one member of the
byv the second motor, one member of the second
second pair comprising a plurality of electrically
pair comprising a plurality of electrically con
conductive elements, the other member of the
ductive elements, the other member ‘of the sec 45 secondv pair comprising a brush slidably engag
ond pair comprising a brush slidably engaging the
ing the elements, all even number elements of the
elements, all even numbered elements at the sec
second pair being electrically connected together,
ond pair being electrically connected together, all
all odd numbered elements of the second pair
odd numbered elements of th second pair being
being electrically connected together, the two
electrically connected together, the two brushes 50 brushes being arranged to be connected to a
being arranged to be connected to a source of
source of current, one motor being alternately
current, one motor being alternately connected in
connected in a circuit with the even and odd
a circuit with the even and odd numbered ele
ments of both pairs and the other motor is alter
nately connected with the odd and even num
numbered elements of both pairs and the other
motor is alternately connected with the odd and
even numbered elements, the motor being thereby
alternately energized for rotation in steps corre
bered elements, the motor being thereby alter
nately energized for rotation in steps correspond
ing to the spacing of the elements and being
thereby caused to rotate synchronously with each
other.
9, A synchronized control apparatus compris
sponding to the spacing of the elements, and being
thereby caused to rotate synchronously with each
other; magnets associated with the commuta
tors; movable armatures operated by the mag
nets; detent means carried jointly by the arma
ing a motor at a controlled point adapted to oper
tures and by the commutators, the magnets being
ate a useful load; a pair of rotatable commutating
included in the respective motor circuits, the
members at the controlled point; means to rotate
detent means being arranged to positively stop
one of the commutating members by the motor; 65 the rotation of each commutator member upon
one member comprising a plurality of electrically
completion of a movement corresponding to the
conductive elements separated by gaps, the other
transition for the corresponding brush from one
element comprising a contact brush slidably en
contact element to another; and resistors included
gaging the element, all odd numbered elements
between‘ the odd and even numbered elements of
being electrically connected together, all even 70 each pair.
numbered elements being also electrically con
11. A synchronized control apparatus compris~
nected together; a second pair of relatively ro
tatable commutating members at a control point;
asecond motor at a control point; means to
rotate one member of second pair by the second
ing'a motor at a controlled point adapted to oper- .
ate a useful load; a pair of rotatable commutat
ingv members at the controlled point; means to
rotate‘ one of the commutating members by the
2,412,676
12
ii
motor; one member comprising a plurality of elec
members, the motors being thereby rendered
trically conductive elements separated by gaps,
alternately energized and deenergized thereby
the other element comprising a contact brush
maintaining a step by step synchronism of their
slidably engaging the elements, all odd numbered
elements being electrically connected together, all UL
rotation.
'
13. A synchronized control apparatus com~
prising a motor at a controlled point adapted to
even numbered velements being also electrically
operate a useful load; a pair of rotatable com
connected together; a second pair of relatively
mutating members at the controlled point; means
rotatable commutating members at a control
to rotate one of the commutating members vby
point; a second motor at a control point; means
the motor; one member comprising two discs in
to rotate one member of the second pair by the
sulated from each other; a plurality of contact
second motor, one member of the second pair
elements extending from each disc to its periph
comprising a plurality of electrically conductive
ery and separated at the periphery by gaps, the
elements, the other member of the second pair
elements of one disc corresponding to the gaps
comprising a brush slidably engaging the ele
of the other disc, the other member comprising
ments, all even numbered elements of the second
a contact brush extending across the peripheral
pair being electrically connected together, all odd
portions of both discs; a second member at a
numbered elements of the second pair being elec
control point; a second pair of relatively rotata
trically connected together, the two brushes being
ble commutating members at a control point;
arranged to be connected to a source of current,
one motor being alternately connected in the cir 20 means to rotate one of the members of the sec
ond pair by the second motor, one member of
cuit with the even and odd numbered elements
the second pair comprising two discs insulated
of both pairs and the other motor is alternately
from each other; a plurality of contact elements
connected with the odd and even numbered ele
extending from each disc to its periphery and
ments, the motor being thereby alternately ener
gized for rotation in steps corresponding to the 25 separated at the periphery by gaps, the elements
of one disc corresponding to the gaps in the other
spacing of the elements and being thereby caused
disc; a second contact brush extending across
to rotate synchronously with each other; magnets
the peripheriesof the two discs of the second
associated with the commutators; movable arma
pair, the brushes being arranged to be included
tures operated by the magnets; detent means
in circuits With the motors and with a source of
carried jointly by the armatures and by the com
current; one disc of each pair having elements
mutators, the magnets being included in the re
longer than the gaps, the adjacent disc of each
spective motor circuits, the detent means being
pair having gaps larger than the elements, each
arranged to positively stop the rotation of each
motor being arranged to be periodically connect
commutator member upon completion of a move
ment corresponding to the transition for the
corresponding brush from one contact element
teeanathersnandovieldable iconnection between
the emotorr andi-jthev amtary member/estuarine
pairrow
,,
1»:
:
,~
~
r
12. A synchronized control apparatus compris
ing a motor at a controlled point adapted to
operate a useful load; a pair of rotatable commu~
tating members, at the controlled point; means
to rotate one of the commutating members by
the motor; one member comprising two discs in
sulated from each other; a plurality of contact
elements extending from'each disc to its periph
ery and separated at the periphery by gaps, the
ed in a circuit with both brushes and with one
l.%1'ge§1§@?ni§;°i ~ihe1?l‘si-mirmf the members
amraeeelellqeleneetiontnesesone rail‘ Zelf-tile
members"andqalternately‘with.the'gmallleleme.
OI"v the- first-pair of ‘the members and Withethe
large element of the second pair of the members,
the motors being thereby rendered alternately
energized and denergized thereby maintaining a
step by step synchronism of their rotation; and
resilient means to advance the movable member
of each pair after each step of movement for
rendering the deenergized motor energizable in
response to the completion of the step of the
movement of the second motor.
14. A synchronized control apparatus com
of the other disc, the other member comprising 50 prising a motor at a controlled point adapted to
operate a useful load; a pair of rotatable com
a contact brush extending across the peripheral
mutating members at the controlled point;
portions of both discs; a second motor at a con
means to rotate one of the commutating mem
trol point; a second pair of relatively rotatable
commutating members at a control point; means
bers by the motor; one member comprising two
to rotate one of the members of the second pair 55 discs insulated from each other; a plurality of
contact elements extending from each ,disc to
by the second motor, one member of the second
pair comprising two discs insulated from each
its periphery and separated at the periphery by
gaps, the elements of one disc corresponding to
other; a plurality of contact elements extending
from each disc to its periphery and separated at
the gaps of the other disc, the other member com
their periphery by gaps, the elements of one disc
prising a contact brush extending across ‘the
corresponding to the gaps in the other disc; a
peripheral portions of both discs; a second motor
second contact brush extending across the periph
at a control point; a, second pair of relatively
ery of the two discs of the second pair, the
rotatable commutating members at a control
brushes being arranged to be included in cir
point; means to rotate one of the members of
cuits with the motors and with a source of cur
the second pair by the second motor, one mem
rent; one disc of each pair having elements
ber of the second pair comprising two discs in
longer than the gaps, the adjacent disc of each
sulated from each other; a plurality of contact
pair having gaps larger than the elements, each
elements extending from each disc to its periph
motor being arranged to be periodically con~
ery and separated at the periphery by gaps'the
nected in a circuit with both brushes and with 70 elements of one disc corresponding to the gaps
one large element of the ?rst pair of the mem
in the other disc; a second contact brush extend
bers and a small element of the second pair of
ing across the peripheries of the two discs of the
elements of one disc corresponding" to the gaps
the members; and alternately with the small
second pair, the brushes being arranged to be
element of the ?rst pair of the ‘members and
included in circuits with the motors and with
with the large element of the second pair of the 75 a source of current; one disc of each pair having
2,412,676
13
14
elements longer than the gaps, the adjacent disc
of each pair having gaps larger than the ele
the large element of the second pair of the mem
ments, each motor being arranged to be periodi
cally connected in a circuit with both brushes
and with one large element of the ?rst pair of the
members and a small element of the second pair
of the members; and alternately with the small
element of the ?rst pair of the members and with
bers, the motors being thereby rendered a1ter~
nately energized and deenergized thereby maintaining a step by step synchronism of their ro
tation; and magnetic means to positively stop
each motor upon completion of each step of
movement.
LEONID A. DUNAJEFF.
Документ
Категория
Без категории
Просмотров
0
Размер файла
1 224 Кб
Теги
1/--страниц
Пожаловаться на содержимое документа