US3890585A - Electrical switching apparatus - Google Patents

Electrical switching apparatus Download PDF

Info

Publication number
US3890585A
US3890585A US457812A US45781274A US3890585A US 3890585 A US3890585 A US 3890585A US 457812 A US457812 A US 457812A US 45781274 A US45781274 A US 45781274A US 3890585 A US3890585 A US 3890585A
Authority
US
United States
Prior art keywords
contact
angular
sense
received
actuator member
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
US457812A
Other languages
English (en)
Inventor
Robert William Hartop
Current Assignee (The listed assignees may be inaccurate. Google has not performed a legal analysis and makes no representation or warranty as to the accuracy of the list.)
Cutler Hammer Inc
Original Assignee
Cutler Hammer Inc
Priority date (The priority date 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 date listed.)
Filing date
Publication date
Application filed by Cutler Hammer Inc filed Critical Cutler Hammer Inc
Application granted granted Critical
Publication of US3890585A publication Critical patent/US3890585A/en
Anticipated expiration legal-status Critical
Expired - Lifetime legal-status Critical Current

Links

Images

Classifications

    • H—ELECTRICITY
    • H01—ELECTRIC ELEMENTS
    • H01H—ELECTRIC SWITCHES; RELAYS; SELECTORS; EMERGENCY PROTECTIVE DEVICES
    • H01H11/00—Apparatus or processes specially adapted for the manufacture of electric switches
    • H01H11/0006—Apparatus or processes specially adapted for the manufacture of electric switches for converting electric switches
    • H01H11/0012—Apparatus or processes specially adapted for the manufacture of electric switches for converting electric switches for converting normally open to normally closed switches and vice versa
    • H—ELECTRICITY
    • H01—ELECTRIC ELEMENTS
    • H01H—ELECTRIC SWITCHES; RELAYS; SELECTORS; EMERGENCY PROTECTIVE DEVICES
    • H01H50/00—Details of electromagnetic relays
    • H01H50/54—Contact arrangements

Definitions

  • the present invention pro vides an electrical switching apparatus comprising a contact set which includes a pair of contact members resiliently biased towards contact with each other, a body member for removably receiving said contact set in first and second angular senses and an actuator member for said contact members, said actuator member being mounted movably in said body member so that said contact members are separable, when the contact set is received by said body member in said first and second angular senses, in response to displacement in respective senses of said actuator member.
  • each contact set may be changed from normally open” to normally closed” and vice-versa by removing that contact set, reversing its angular position from one sense to the other, and replacing it in the body member.
  • the actuator member is displaced from a normal position by energization of an electromagnet.
  • the lever 38 is thus pivotable about the axis A-A and the armature 36 is secured to the lever 38 by a pin 42 extending through the two side portions of the lever and also through the armature.
  • a plurality of extensions 44a, 44b, 44c, 44d, one for each contact set, are formed on the lever 38 for the purpose of operating the contact members of the respective contact sets as will be explained below.
  • Electrical terminals 46a and 46b for the coil 28 are mounted in an upper part 10b of the housing and connected to the coil 28 by conductors such as 47a, 47b which are disposed for automatic connection when the parts 10a and 10b of the housing are joined, the terminals 46a and 46b being of the kind the subject of our patent application 12588/73.
  • a member 48 holds the terminals 46a, 46b in their recesses in a portion 49 which bridges the housing 10. Member 48 is perforated for access to the terminals 46a, 46b.
  • a helical compression spring is provided for each contact set (only springs 96a, 96b for contact sets 20, 22 being shown) and these act between respective extensions (e.g., 98a, 98b) of lever 38 and abutment 92 or 94 on the respective contact set (depending upon whether that contact set is received in the first or second angular sense).
  • springs 96a and 96b act upon abutments 94 and 92 of the respective contact sets 20 and 22.
  • the combined effect of the compression springs such as 96a and 96b is to bias the actuator member 36, 38 in one sense of displacement, namely clockwise as viewed in FIGS. 2, 3 and 4.
  • the armature 36 Upon energisation of the electromagnet the armature 36 is attracted to the pole faces 32, 34 and this causes the actuator member to be rotated in the opposite sense of displacement to that urged by the compression springs 96a, 96b, namely counterclockwise as viewed in FIGS. 2, 3 and 4.
  • the extension 44b abuts the arm 88 to separate the contact members 84, 86, whilst for normally open contact set 20, the extension moves out of abutment with the arm 88 and therefore permits the contact members of this contact set to close.
  • a contact set including a pair of contact members and biasing means resiliently biasing said contact members towards each other;

Landscapes

  • Engineering & Computer Science (AREA)
  • Manufacturing & Machinery (AREA)
  • Physics & Mathematics (AREA)
  • Electromagnetism (AREA)
  • Mechanisms For Operating Contacts (AREA)
  • Switch Cases, Indication, And Locking (AREA)
  • Push-Button Switches (AREA)
US457812A 1973-04-05 1974-04-04 Electrical switching apparatus Expired - Lifetime US3890585A (en)

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
GB1645773A GB1437790A (enrdf_load_stackoverflow) 1973-04-05 1973-04-05

Publications (1)

Publication Number Publication Date
US3890585A true US3890585A (en) 1975-06-17

Family

ID=10077686

Family Applications (1)

Application Number Title Priority Date Filing Date
US457812A Expired - Lifetime US3890585A (en) 1973-04-05 1974-04-04 Electrical switching apparatus

Country Status (10)

Country Link
US (1) US3890585A (enrdf_load_stackoverflow)
JP (1) JPS5027076A (enrdf_load_stackoverflow)
BE (1) BE813321A (enrdf_load_stackoverflow)
CA (1) CA1011790A (enrdf_load_stackoverflow)
DE (1) DE2416340A1 (enrdf_load_stackoverflow)
ES (1) ES424950A1 (enrdf_load_stackoverflow)
FR (1) FR2224855A1 (enrdf_load_stackoverflow)
GB (1) GB1437790A (enrdf_load_stackoverflow)
IT (1) IT1015896B (enrdf_load_stackoverflow)
NL (1) NL7404638A (enrdf_load_stackoverflow)

Cited By (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US4392118A (en) * 1982-03-02 1983-07-05 Eaton Corporation Thermal overload relay having a N.O. or N.C. contact unit selectively addable in the field

Families Citing this family (3)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
DE3428637C1 (de) * 1984-08-03 1985-11-21 Ellenberger & Poensgen Gmbh, 8503 Altdorf Ein- oder mehrpoliger UEberstromschutzschalter mit integrierter Signalkontaktstelle
FR2652947B1 (fr) * 1989-10-06 1994-03-04 Telemecanique Appareil interrupteur a commande electromagnetique a poles a ouverture.
FR2771848B1 (fr) * 1997-12-02 2000-01-07 Schneider Electric Sa Interrupteur electrique pouvant realiser plusieurs fonctions , par exemple les fonctions poussoir, va et vient,avec les memes pieces de base

Citations (3)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US3161751A (en) * 1962-05-17 1964-12-15 Gen Electric Reversible electrical contact structure
US3238329A (en) * 1963-04-19 1966-03-01 Clark Controller Co Electric switch apparatus
US3277410A (en) * 1963-09-13 1966-10-04 Telemecanique Electrique Electro-magnetic relay comprising a number of bridge contacts carried by a sliding bar

Patent Citations (3)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US3161751A (en) * 1962-05-17 1964-12-15 Gen Electric Reversible electrical contact structure
US3238329A (en) * 1963-04-19 1966-03-01 Clark Controller Co Electric switch apparatus
US3277410A (en) * 1963-09-13 1966-10-04 Telemecanique Electrique Electro-magnetic relay comprising a number of bridge contacts carried by a sliding bar

Cited By (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US4392118A (en) * 1982-03-02 1983-07-05 Eaton Corporation Thermal overload relay having a N.O. or N.C. contact unit selectively addable in the field

Also Published As

Publication number Publication date
CA1011790A (en) 1977-06-07
FR2224855A1 (enrdf_load_stackoverflow) 1974-10-31
BE813321A (fr) 1974-10-04
GB1437790A (enrdf_load_stackoverflow) 1976-06-03
NL7404638A (enrdf_load_stackoverflow) 1974-10-08
IT1015896B (it) 1977-05-20
ES424950A1 (es) 1976-05-16
DE2416340A1 (de) 1974-10-24
JPS5027076A (enrdf_load_stackoverflow) 1975-03-20

Similar Documents

Publication Publication Date Title
US4529951A (en) Remote control system circuit breaker
US3272949A (en) Bifurcated parallel contacts for relay
US3388353A (en) Electrical contactor having main circuit control contacts and auxiliary control contacts interconnected to be actuated from a common electromagnetic actuator
USRE32882E (en) Remote control system circuit breaker
US4814554A (en) Switch assembly with redundant spring force and one-piece plunger
US4543459A (en) Small-sized switch
US3890585A (en) Electrical switching apparatus
US3176097A (en) Pushbutton magnetic switch with a memory
US4184134A (en) Electrical switching apparatus having convertible contact structure
US2585824A (en) Electric switch
US3953697A (en) Dual fulcrum switch
US4529952A (en) Electromagnetic relay
US3525958A (en) Poled miniature relay with two-bladed pivoted armature
US3088058A (en) Contactor
US6924449B2 (en) Interrupting device for switching apparatus
US3713055A (en) Auxiliary contact system for electromagnetic switching devices
US2153402A (en) Electric switch
US3623150A (en) Contactor switch
US3333216A (en) Unencapsulated reed contact relay
US3270165A (en) Magnetically operated mercury switch with improved slidable and rotatable magnetic actuators
GB2111752A (en) Relay
US4042797A (en) Electric safety switch with positive-action mechanism
US2912537A (en) Electromagnetic stepping switch
US4099151A (en) Electromagnetic contactor
US3160730A (en) Electric control device with improved contact structure