GB588724A - An improved electric switch with over-current release - Google Patents

An improved electric switch with over-current release

Info

Publication number
GB588724A
GB588724A GB22378/44A GB2237844A GB588724A GB 588724 A GB588724 A GB 588724A GB 22378/44 A GB22378/44 A GB 22378/44A GB 2237844 A GB2237844 A GB 2237844A GB 588724 A GB588724 A GB 588724A
Authority
GB
United Kingdom
Prior art keywords
contact
abutments
armature
nov
over
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
Application number
GB22378/44A
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.)
Landis and Gyr AG
Original Assignee
Landis and Gyr AG
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 Landis and Gyr AG filed Critical Landis and Gyr AG
Publication of GB588724A publication Critical patent/GB588724A/en
Expired legal-status Critical Current

Links

Classifications

    • H—ELECTRICITY
    • H01—ELECTRIC ELEMENTS
    • H01H—ELECTRIC SWITCHES; RELAYS; SELECTORS; EMERGENCY PROTECTIVE DEVICES
    • H01H73/00—Protective overload circuit-breaking switches in which excess current opens the contacts by automatic release of mechanical energy stored by previous operation of a hand reset mechanism
    • H01H73/02—Details
    • H01H73/04—Contacts
    • H01H73/045—Bridging contacts
    • H—ELECTRICITY
    • H01—ELECTRIC ELEMENTS
    • H01H—ELECTRIC SWITCHES; RELAYS; SELECTORS; EMERGENCY PROTECTIVE DEVICES
    • H01H71/00—Details of the protective switches or relays covered by groups H01H73/00 - H01H83/00
    • H01H71/10—Operating or release mechanisms
    • H01H71/12—Automatic release mechanisms with or without manual release
    • H01H71/24—Electromagnetic mechanisms
    • H01H71/2409—Electromagnetic mechanisms combined with an electromagnetic current limiting mechanism
    • H—ELECTRICITY
    • H01—ELECTRIC ELEMENTS
    • H01H—ELECTRIC SWITCHES; RELAYS; SELECTORS; EMERGENCY PROTECTIVE DEVICES
    • H01H3/00—Mechanisms for operating contacts
    • H01H3/02—Operating parts, i.e. for operating driving mechanism by a mechanical force external to the switch
    • H01H3/0253—Operating parts, i.e. for operating driving mechanism by a mechanical force external to the switch two co-operating contacts actuated independently

Landscapes

  • Physics & Mathematics (AREA)
  • Electromagnetism (AREA)
  • Push-Button Switches (AREA)
  • Thermally Actuated Switches (AREA)
  • Breakers (AREA)
  • Rotary Switch, Piano Key Switch, And Lever Switch (AREA)

Abstract

588,724. Electrically-tripped switches. LANDIS & GYR SOC. ANON. Nov. 13, 1944, No. 22378. Convention date, Nov. 16, 1943. [Class 38 (v)] A switch comprises a movable contact 1, operated, for example, by a magnet 4, and a normally-fixed contact 5, the latter being tripped and moved away from the contact 1 in the event of a short-circuit. The contact 5 is a metal strip biassed by a spring 13 away from the contact 1, but is normally retained by abutments 18 thereon engaging half-cylinders 16, which rotate with an armature 8, pivoted at 15. When the armature 8 is attracted by quenching magnet coils 7, it releases the contact 5, which moves quickly owing to its small inertia. The contact 5 may be re-set by a member 19. The abutments 18 may be welded to the contact 5 or formed integral with it, Figs. 4, 5 (not shown), or a downwardly projecting pin or tongue fixed to, or bent out of, the contact 5, may engage a single central half-cylinder located below the contact, Figs. 6-9 (not shown).
GB22378/44A 1943-11-16 1944-11-13 An improved electric switch with over-current release Expired GB588724A (en)

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
CH588724X 1943-11-16

Publications (1)

Publication Number Publication Date
GB588724A true GB588724A (en) 1947-06-02

Family

ID=4521986

Family Applications (2)

Application Number Title Priority Date Filing Date
GB22378/44A Expired GB588724A (en) 1943-11-16 1944-11-13 An improved electric switch with over-current release
GB5708/45A Expired GB588750A (en) 1943-11-16 1945-03-07 An improved electric switch with over-current release

Family Applications After (1)

Application Number Title Priority Date Filing Date
GB5708/45A Expired GB588750A (en) 1943-11-16 1945-03-07 An improved electric switch with over-current release

Country Status (6)

Country Link
BE (1) BE460172A (en)
CH (2) CH236476A (en)
DE (2) DE849266C (en)
FR (1) FR908617A (en)
GB (2) GB588724A (en)
NL (2) NL116350C (en)

Cited By (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US3070681A (en) * 1958-10-29 1962-12-25 Ite Circuit Breaker Ltd Face wound blowout coil

Families Citing this family (4)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
BE543963A (en) * 1954-09-21
DE1089459B (en) * 1958-08-22 1960-09-22 Stotz Kontakt Gmbh Electric circuit breaker with arcing chambers made of insulating material, in particular motor protection switches
DE3433624A1 (en) * 1984-09-13 1986-03-20 Doduco KG Dr. Eugen Dürrwächter, 7530 Pforzheim AUTOMATICALLY APPLICABLE, CURRENT-LIMITING SWITCH
GB8917283D0 (en) * 1989-07-28 1989-09-13 Federal Pioneer Ltd Miniature circuit breakers

Cited By (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US3070681A (en) * 1958-10-29 1962-12-25 Ite Circuit Breaker Ltd Face wound blowout coil

Also Published As

Publication number Publication date
NL116350C (en)
DE849266C (en) 1952-09-11
CH236476A (en) 1945-02-15
BE460172A (en)
DE854681C (en) 1952-11-06
FR908617A (en) 1946-04-15
NL60237C (en)
CH239696A (en) 1945-10-31
GB588750A (en) 1947-06-02

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