US2490963A - Relay - Google Patents

Relay Download PDF

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Publication number
US2490963A
US2490963A US714070A US71407046A US2490963A US 2490963 A US2490963 A US 2490963A US 714070 A US714070 A US 714070A US 71407046 A US71407046 A US 71407046A US 2490963 A US2490963 A US 2490963A
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US
United States
Prior art keywords
contact
relay
contact arms
actuating member
electro
Prior art date
Legal status (The legal status is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the status listed.)
Expired - Lifetime
Application number
US714070A
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English (en)
Inventor
Hofgaard Rolf
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Individual
Original Assignee
Individual
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Filing date
Publication date
Application filed by Individual filed Critical Individual
Application granted granted Critical
Publication of US2490963A publication Critical patent/US2490963A/en
Anticipated expiration legal-status Critical
Expired - Lifetime legal-status Critical Current

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Classifications

    • H—ELECTRICITY
    • H01—ELECTRIC ELEMENTS
    • H01H—ELECTRIC SWITCHES; RELAYS; SELECTORS; EMERGENCY PROTECTIVE DEVICES
    • H01H50/00—Details of electromagnetic relays
    • H01H50/54—Contact arrangements
    • H01H50/62—Co-operating movable contacts operated by separate electrical actuating means

Definitions

  • the present invention relates to a relay of thetype which serves'to simultaneously close or interrupt a large number'of contacts for electrical circuits.
  • Relays of this type are utilized in a number of difierent cases such as for instance in electrical calculating machines, signal devices of various kind etc.
  • the object of the invention is to provide a relay of this type in which the movement of a number of elastic contact arms from a resting position to a working position is caused by means of a mechanically operated actuating member, whereas the connection between this member and the contacts, i. e. the possibility of closing and interrupting the circuits, is controlled by means of an electro-magnet which, as it has only a very small mechanical work to perform, may be given very small dimensions.
  • the mechanically operated actuating member and the electromagnet control member cooperate in such a manner that the mechanically operated actuating member is caused to engage the contact arms when these are in their position of rest, and the electro-magnet is energized, whereby the contact arms against spring action are transferred to working position and are locked in this position irrespective of whether the electro-magnet is still energized or not, whereas the mechanically operated actuating member, in case the contacts are locked in Working position and the electromagnet is not under current, is permitted to release the locking means so as to liberate the contact arms and allow sameto move back to their position of rest under spring action.
  • a mechanically operated'reciprocating actuating member which is coupled with the elastic contact arms by means of an electro-magnetic operated spring actuated hook.
  • This hook acts in such a manner that after energization of the electro-magnet it will first lift a pivoted arm connected with the elastic contact arms so that a part of this arm is placed in the path of the reciprocating member which will then move the contact arms against spring action slightly further than their working position, whereupon at the beginning of the return movement of the contacts, a nose on said pivoted arm engages said hook so as to lock the contacts in their Working position and maintain them in that position, irrespective of whether the electro-magnet is still energized or not, until the reciprocating member at the moment when the electro-magnet is not 194s, Serial'No, 114,670 April 29, 1946 energized will again move the contacts a short distance away from their working position so-as to disengage-the pivoted arm from the spring actuated hook and allow the hook and the armto
  • Figure 1 is a side view of the contact relay'with the elastic contact arms in position of rest and the electro-m'agnet' de-energized.
  • Figure 2 is a similarview of the contact relay with the elastic Contact "arms still in their positiondof rest and with the electro-magnet e'ner' gize
  • Figure '3 is a similar view of the contact relay with the elastic contact arms in working position.
  • the contact relay comprises a number of'elastic con'tact arms arranged in pairs as indicated with'the numbers I and 2, these arms being s'ecured at their'lower "ends in an insulating block 3 and interconnected at their upper ends by means "of another insulating block 4.
  • Contact arms '5'- are provided with contacts as indicated at 6, these contacts in their resting position ( Figures 1 and 2) engaging one contact arm -(left') in 'thepair of'contact arms between the members of which they are located, Whereas in the woi'lin'g position, as indicated'on Figure 3, they engage the 'otherK-right) contact arm in the samep'aii' of contact arms I, 2 etc; being then bent s'ld'ewise.
  • an arm I which is provided on its underside with a projection or nose 8.
  • armature ID of armature l0 is in the form of a two-armed lever pivoted about pin II.
  • the part of armature l0 which is further away from the magnet is made in the form of a hook l2 extending towards the underside of the pivoted arm 1.
  • l3 indicates a mechanically operated reciprocating actuating member which serves to move the contact arms from resting position to working position and to release them again by engagement with the pivoted arm 1 on block 4.
  • the contact relay will remain in working position as the nose 8 is only moved a slight distance away from the hook l2 which remains in position and engages the nose again as soon as actuating member l3 has started its movement towards the right.
  • the armature lll is provided with a depending arm l4 engaging an auxiliary contact spring I5.
  • This contact spring serves the purpose of moving the pivoted armature towards the position indicated in Figure 1, and on the other hand may also cooperate withanother contact spring 16 which may for instance operate as a self-closing circuit contact for the electromagnet in cases when this is desired.
  • a smaller or larger number of contact relays of the type illustrated in the drawing may be placed in a row and be adapted to be cut in or out by means of a common mechanical actuating member such as for instance a reciprocating rod or shaft with arms or projections corresponding to the element l3 indicated in the drawing.
  • the cutting in and out of the individual relays then takes place by means of current impulses to the electro-magnet of each relay, and these current impulses in a known manner may be controlled by means of relays which have been brought into working position during the preceding stroke of the mechanical actuating member.
  • a contact relay comprising a plurality of interleaved sets of relatively stationary and relatively movable resilient contact arms, an insulating block connecting the ends of the relatively movable contact arms to each other, said movable contact arms being biased toward a rest position, a mechanically reciprocated actuating member movable in spaced relation to said insulating block, a normally-inoperative coupling member movable into operative position in the path of travel of said actuating member to transmit motion therefrom to move said movable contact arms into working position, an electromagnet having an armature operative in its attracted position on energization of the electromagnet to displace said coupling member into operative position, and cooperating latch means on said coupling member and armature for retaining said movable contact arms in working position and said armature in attracted position upon movement of said mechanically reciprocated actuating member away from said coupling member.

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  • Physics & Mathematics (AREA)
  • Electromagnetism (AREA)
  • Breakers (AREA)
  • Mechanisms For Operating Contacts (AREA)
US714070A 1946-04-29 1946-12-04 Relay Expired - Lifetime US2490963A (en)

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
NO2490963X 1946-04-29

Publications (1)

Publication Number Publication Date
US2490963A true US2490963A (en) 1949-12-13

Family

ID=19915009

Family Applications (1)

Application Number Title Priority Date Filing Date
US714070A Expired - Lifetime US2490963A (en) 1946-04-29 1946-12-04 Relay

Country Status (6)

Country Link
US (1) US2490963A (US06262066-20010717-C00315.png)
BE (1) BE469246A (US06262066-20010717-C00315.png)
CH (1) CH254936A (US06262066-20010717-C00315.png)
DE (1) DE808139C (US06262066-20010717-C00315.png)
FR (1) FR935629A (US06262066-20010717-C00315.png)
NL (2) NL128077C (US06262066-20010717-C00315.png)

Cited By (6)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US2534797A (en) * 1949-10-14 1950-12-19 James A Rugh Switch holding and release mechanism
US2646473A (en) * 1950-04-25 1953-07-21 Talk O Products Inc Manually operated selecting and controlling switch apparatus
US2682585A (en) * 1952-05-24 1954-06-29 Bell Telephone Labor Inc Electromagnetic relay
US2905788A (en) * 1957-03-14 1959-09-22 Potter & Blomfield Inc Contact structures for relays
US3089011A (en) * 1959-06-02 1963-05-07 Ericsson Telefon Ab L M Code relay selector
US3230329A (en) * 1962-05-28 1966-01-18 American Mach & Foundry Electromagnetic relay with multiple spring type contacts

Families Citing this family (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
DE2522297B2 (de) * 1975-05-20 1978-01-05 Danfoss A/S, Nordborg (Dänemark) Elektrisches relais

Citations (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US2021705A (en) * 1930-02-08 1935-11-19 Adolph A Thomas Remote control system for radioreceivers

Patent Citations (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US2021705A (en) * 1930-02-08 1935-11-19 Adolph A Thomas Remote control system for radioreceivers

Cited By (6)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US2534797A (en) * 1949-10-14 1950-12-19 James A Rugh Switch holding and release mechanism
US2646473A (en) * 1950-04-25 1953-07-21 Talk O Products Inc Manually operated selecting and controlling switch apparatus
US2682585A (en) * 1952-05-24 1954-06-29 Bell Telephone Labor Inc Electromagnetic relay
US2905788A (en) * 1957-03-14 1959-09-22 Potter & Blomfield Inc Contact structures for relays
US3089011A (en) * 1959-06-02 1963-05-07 Ericsson Telefon Ab L M Code relay selector
US3230329A (en) * 1962-05-28 1966-01-18 American Mach & Foundry Electromagnetic relay with multiple spring type contacts

Also Published As

Publication number Publication date
NL66064C (US06262066-20010717-C00315.png)
NL128077C (US06262066-20010717-C00315.png)
FR935629A (fr) 1948-06-24
BE469246A (US06262066-20010717-C00315.png)
DE808139C (de) 1951-07-12
CH254936A (de) 1948-05-31

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