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Dec. 31, 1946.] -
E, WEBER
- 2413,39‘!
OSCILLATORY ARMATURE RELAY
Filed May 29, 1941
M'WJZZR:
Y
W
' M Aa‘i'fTORNEYS.
Patented Dec. 31, 1946
2,413,397
UNITED STATES PATENT OFFICE
2,413,397
OSCILLATORY ARMATURE RELAY
Ernst Weber, Zug, Switzerland, assignor to Landis
& Gyr, A-G., Zug, Switzerland, a corporation
of Switzerland
Application May 29, 1941, Serial No. 395,832
In Switzerland June 11, 1940
1
7 Claims. (Cl. 200-103)
The present invention relates to change-over
devices and more particularly to such devices
which comprises an oscillatory armature relay.
Objects and advantages of the invention will
be set forth in part hereinafter and in part will
be obvious herefrom, or may be learned by prac
tice with the invention, the same being realized
and attained by means of the instrumentalities
and combinations pointed out in the appended
claims.
2
short impulse it is moved out of its position of
rest through the place of maximum ?ux density,
in which operation on the subsequent falling back
of the auxiliary detent armature it is locked and
on energisation of the relay by the second impulse
it is again released and thus after cessation of
the impulse it can no longer be held by the
auxiliary detent armature and can return to its
position of rest. The oscillatory armature relay
10 is formed so that the oscillatory armature
The invention consists in the novel parts, con- '
actuates a change-over contactor, which itself
structions, arrangements, combinations, and im
from time to time again interrupts the relay
provements herein shown and described.
current circuit closed from a place of actuation.
The accompanying drawing, referred to herein
In order to synchronise the relays which may
and constituting a part hereof, illustrates one 15 have fallen out of step, the strength of the ?rst
embodiment of the invention, and together with
impulse can be made greater than that of the
the description serve to explain the principles
second impuse.
of the invention.
It will be understood that the foregoing general
It is an object of the present invention to pro
description and the following detailed description
vide- an electrical change over device for use with 20
as well are exemplary and explanatory of the
multiple tariff meters and the like which is cer
invention
but are not restrictive thereof.
tain in operation; employs a minimum of
The oscillatory armature relay consists of an
mechanical parts, and is simple in operation and
upright magnet coil 3 and ?eld piece 4, the latter
economical in construction and operation. It is
having the pole pieces I, 2 projecting outward
a further object to provide an oscillatory arma 25
through a non-magnetic inner supporting plate
ture relay change over device in which the chang
4'; and an oscillatory armature 5, an auxiliary
ing over mechanism is electrically controlled and
detent armature 6 and a change-over switch ‘I
does not employ step by step mechanism or tilt
mounted on said inner supporting plate and an
ing devices. Another object is the provision of
outer non-magnetic supporting plate 4a secured
electrically controlled change over mechanism
to the plate 4'. The oscillatory armature 5, which
for change over devices of known types which
is subject to the torque of a returning spring 3,
may be easily and economically installed therein.
bears a change-over pin in acting on the central
The invention also provides an oscillatory arma
contact 9 of the change-over switch ‘I, and an
ture relay change over mechanism which is al
abutment pin II to engage the end of the
ways synchronized with its actuating force.
auxiliary detent armature B. The two outer con
Fig. l is a front elevation of a change-over
tacts l2, l3 of the change-over switch ‘I are in
relay or electric switch embodying my invention
electrical connection with the contacts [4, [5 of
and showing a circuit in which it is arranged.
a change-over switch I ‘i also having an oscillatory
Fig. 2 is a top plan view, partly in section, of the
contact It. The switching apparatus is con
relay.
In accordance with the illustrative form of the
present invention a change over mechanism com
prising an oscillatory armature which is ener
nected to a source of current l8.
In the moving over of the oscillatory contact
It of the change-over switch I‘! by hand or by
means of a clock to engage contact l5, the cir
gized at intervals is provided with an auxiliary
cuit of the coil 4 of the relay is closed. The
detent armature controlled by the same ?eld as 45 oscillatory armature 5 is then attracted by the
the oscillatory armature. This auxiliary arma
poles I, 2 of the ?eld piece, in which operation
ture acts on the oscillatory armature in such a
by reason of its inertia it passes out beyond the
manner that after energisation of the relay, by
places of maximum flux density. At the same
means of a ?rst impulse, it holds the oscillatory
time, the auxiliary detent armature 6 acting as
armature in the attracted position and after 50 a detent pawl and subject to the pressure of a
energisation of the relay by means of a second
spring [9, is also attracted by the pole I of the
impulse again releases the oscillatory armature
upright magnet 3.
and allows it to return to its position of rest. The
_ The energlsing current circuit immediately
travel and inertia of the oscillatory armature can
after the attraction of the two armatures 5, 6 is
be such that on energisation of the relay by a
interrupted by the change-over pin l0, since this
2,413,397
4
armature and thus release the main armature,
then releases the‘contact 9, so that the latter by
but not to bring the oscillatory armature from
the force of its spring 2?} comes on to the con
the position of rest into the locked position, so
tact E3. The oscillatory armature 5 which has
that synchronisation of the relay is obtained in a
come out beyond the places of maximum flux
simple manner, and thereby any falling out of
density begins to f all back somewhat immediately
step of the relay is avoided in practice.
after it reaches that position, due to the action
Since in the above described oscillatory arma
of spring 8. In the meantime, the auxiliary de
ture relay, the changing over and the mainte
tent armature 6 has also fallen away from the
nance thereof take place by means of electrically
pole 1 due to the interruption of the circuit, so
that the oscillatory armature 5 by means of the 10 controlled means, namely an auxiliary detent
armature, which does not require any further
abutment I l is prevented by the auxiliary arma
mechanical
means, such as step-by-step mecha
ture 6 from falling back into the position of rest.
nism or tilting devices, the certainty of operation
In this operation the oscillatory armature 5 is
of relays of the improved kind is very high.
so held by the auxiliary detent armature 5' that
Furthermore, by this means by selective dimen
it still does not take up the mid position i. e. a
sioning of the strengths of the two impulses
position in the places of maximum ?ux density.
actuating the relay, a synchronisation of the relay
[is soon as the oscillatory contact it of the
can also be obtained. It is moreover important
change-over switch ii is again brought on to the
and advantageous that the oscillatory armature
contact Hi, there takes place through the contacts
relays heretofore made on mass production lines
9, E3 of the change-over device ‘l a closing of the
and therefore inexpensive can be employed with
energising current circuit. In this case, there
out alteration and have solely to be provided in
is now ?rst attracted only the auxiliary detent
addition with the auxiliary detent armature.
armature 6 by the pole l of the upright magnet. 3.
The invention in its broader aspects is not
The oscillatory armature 5 is thereby released,
limited to the speci?c mechanisms shown and
so that it is attracted and therewith moved back
described but departures may be made there
through a short distance into the position of
from within the scope of the accompanying
maximum flux density. This small backward
claims without departing from the principles of
movement of the oscillatory armature '5 is suffi
cient to enable the change-over pin iii to remove , I the invention and without sacri?cing its chief
advantages.
the contact 9 from the contact l3 and ‘to bring
What I claim is:
it again into engagement with the contact E2.
l. A change-over relay comprising in combina
The relay is then again lie-energised and the
tion an oscillatory armature to be oscillated by
oscillatory armature 5 can now return to its posi
tion of rest, since it can no longer be held by the _ . an electrically energized magnetic ?eld from a
falling back of the auxiliary detent armature 6, “ position of rest to an oscillated position to and
through the position of magnetic equilibrium and
as the abutment I i already lies behind the edge
an auxiliary detent armature normally arranged
of the auxiliary detent armature 6.
in detaining position and embodying a unitary
The movements of the oscillatory armature are
employed to effect any desired switching-over,
motion. Ina multiple-tari?‘ meter installation‘
on the response of the oscillatory armature the
counting mechanism can be changed over from
one to theother counting mechanism and this
change over maintained by'theauxiliary detent
armature. In this operation, the pivotal shaft
2! of the oscillatory armature can be connected
to a lever, which acts in a known manner on the
element controlled by the magnet ?eld through
successive intermittent impulses energizing and
deenergizing said ?eld so as~to be ?rst attracted
by a ?rst impulse produced ?eld and moved to
non-detaining position, then released and allowed
to move to detaining position to engage and hold
the oscillatory armature in its oscillated position
on the interruption of said produced field, and
then attracted to non-detaining position by a
second impulse produced ?eld to release the
change~over pinion of the double tari? meter
armature and finally allowed to move back to its
mechanism. This arrangement is not shown in
the drawing, as it is well known in the art and 50 normal detaining position on the interruption of
forms no part of the present invention. Instead
such second ?eld.
'
2. A changemver relay comprising in combina
of the mechanical change-over an electrical one
tion an oscillatory armature having opposed poles
can obviously be employed It is obvious that the
and mounted for oscillation centrally on a hori
oscillatory armature relay is also directly appli
zontal transverse axis in a magnetic ?eld between
cable for purposes other than for changing the
coacting poles, and energized by intermittent
tariii.
When the actuating device produces the im
electric impulses to oscillate said armature from
pulse, the change-over device on the relay is ob
its postiion of rest to an oscillated position into
viously dispensed with. If a whole series of oscil
and through the position of magnetic equilibrium,
latory armature relays is actuated by the change 60 and an auxiliary detent armature normally ar
over switch, it is advantageous that one osci1la~
ranged in detaining position and embodying a
tory armature relay with a change-over device
unitary element controlled by the magnet ?eld
shall co-act with the change-over switch, whilst
through successive intermittent impulses ener
the remaining relays are connected in parallel
gizing and deenergizing said ?eld so as' to ‘be
with this ‘relay and have no change-over devices.
?rst
attracted by a first impulse produced ?eld
In order that the relay in the event of a single
and moved to non-detaining position, then re
lapse shall again come into step, a resistance 22
leased and allowed to move to detaining position
is advantageously inserted in the branch conduc
to engage and hold the oscillatory armature in
tor between the contacts is and I5, whereby the
result is obtained that the ?rst impulse is stronger 70 its oscillated position on the interruption of said
produced ?eld, and then attracted to non-detain
, than, the second. In the first stronger impulse,
ing position by a second impulse produced ?eld
the oscillatory armature is attracted and in the
to release the armature and ?nally allowed to
second weaker impulse it is released by the
move back to its normal detaining position on
auxiliary detent armature. This second weaker
the interruption of such second ?eld.
impulse is suf?cient to lift the auxiliary detent
5
2,413,397
3. A change-over relay comprising in combina
tion an oscillatory armature having spaced poles
and mounted for oscillation centrally on a hori
zontal transverse axis between coacting poles in
a magnetic ?eld energized by intermittent cur
rent impulses from a position of rest to an oscil
6
detaining position and back again to detaining
position to engage and hold the armature in
thrown position and operative on a second cur
rent impulse to move to a non-detaining position
to release the armature for retraction and upon
the cessation of said second current impulse to
lated position into and through the place of
move back to its normal detaining position.
maximum flux intensity, a pair of switches to
6. An electrical switch comprising in combina
tion a vertically disposed electromagnet having
energize said magnetic ?eld when closed actuated
by the armature on its opposite movements to 10 upper and lower poles, an oscillatory armature
having coacting poles and mounted for oscillation
close one of said switches when the armature is
on a central horizontal axis located between the
in the position of rest and the other of said
poles of the magnet for movements between
switches when the armature is in the oscillated
initial and thrown positions, a pair of circuit
position, said switches being opened by slight
make and break switch contacts, a switch mem
movements of said armature away from said posi
ber for alternate engagement with and disen
tions, and ‘an auxiliary detent armature con
gagement from said contacts to transmit alter
trolled by the magnetic ?eld for movements into
nate current impulses to energize the magnet and
and out of detaining position and adapted to
be moved successively out of detaining position 20 deenergize the same after each current impulse, a
switch actuating element carried by the arma
and their back into detaining position to engage
ture and oscillating therewith for moving the
and hold the armature in oscillated position after
switch member alternately into engagement with
alternate energizations of the magnetic ?eld,
and. disengagement from the respective contacts
,4. A change-over relay comprising in combina
on preliminary portions of the movements of the
tion a vertically disposed electromagnet having 25 oscillatory armature in opposite directions, and a
spaced poles, an oscillatory armature having co
pivotally mounted auxiliary detent magnet ar
acting poles and centrally mounted on a horizon
ranged in the ?eld of one of the magnet poles
tal axis for rotary motion between the poles of
so as to be in?uenced thereby and operative on
the magnet from a position of rest out of the posi
a ?rst current impulse and its cessation to move
tion of magnetic equilibrium to an oscillated posi 30 respectively from a normal detaining to a non
tion to and through said position of magnetic
detaining position and back again to a detaining
equilibrium, by energizing said magnet in im
position to engage and hold the armature in
pulses, a pair of switches to energize said magnet
thrown position and operative on a second cur
when closed, means actuated and carried by said
rent impulse to move to a non-detaining position
armature to close one of said switches when the
to release the armature for retraction and upon
armature is in the position of rest and the other
the cessation of said second current impulse to
of said switches when the armature is in the
move back to its normal detaining position.
oscillated position, said switches being opened by
'7. An electrical switch comprising in combina
slight movement of said armature away from said
tion a vertically disposed electromagnet having
positions, and an auxiliary detent armature ar ~10 upper and lower poles, an oscillatory armature
ranged to be attracted by one pole of the magnet
having coacting poles and mounted for oscilla
and moved to non-detaining position by a ?rst
tion on a central horizontal axis located between
impulse and rendered operative to engage and
the poles of the magnet for movements between
hold the oscillatory armature beyond the posi
initial and thrown positions, said arm having a
tion of magnetic equilibrium after the ?rst im
latch projection thereon, a pair of circuit make
pulse and to be attracted and disengaged from
and break switch contacts, a switch member for
the oscillatory armature upon a second impulse
alternate engagement with and disengagement
and to return to non-detaining position after said
from said contacts to transmit alternate current
second impulse.
impulses to energize the magnet and deenergize
5. An electrical switch comprising in combina 50 the same after each current impulse, a switch
tion a vertically disposed electromagnet having
actuating element carried by and oscillating with
upper and lower poles, an oscillatory armature
the armature for moving the switch member
having coacting poles and mounted for oscilla
alternately into engagement with and disengage
tion on a horizontal central axis located between
ment from the respective contacts on preliminary
the poles of the magnet for movements between 55 portions of the movements of the oscillatory
initial and thrown positions, a pair of switch
armature in opposite directions, and a pivotally
contacts, switch members for alternate engage
mounted auxiliary detent armature arranged in
ment with and disengagement from said con
the ?eld of one of the magnet poles so as to be
tacts to transmit alternate current impulses to
in?uenced thereby and operative on a ?rst cur
energize the magnet and deenergize the same 60 rent impulse and its cessation to move respec
after each current impulse, means actuated by
tively from a normal detaining to a non-detain
the armature for moving the switch member
ing position and back again to detaining position
alternately into engagement with and disengage
to engage the latch projection on the armature
ment from each contact on preliminary portions
of the movements of the armature in opposite
directions, and an auxiliary detent magnet ar
ranged in the ?eld of one of the magnet poles so
as to be in?uenced thereby and operative on a
?rst current impulse and its cessation to move
respectively from a normal detaining to a non
and hold the armature in thrown position and
operative on a second current impulse to move
to a non-detaining position to release the arma
ture for retraction and upon the cessation of said
second current impulse to move back to its nor
mal detaining position.
70
ERNST WEBER.
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