GB769657A - Improvements in or relating to automatic circuit breakers - Google Patents

Improvements in or relating to automatic circuit breakers

Info

Publication number
GB769657A
GB769657A GB14824/55A GB1482455A GB769657A GB 769657 A GB769657 A GB 769657A GB 14824/55 A GB14824/55 A GB 14824/55A GB 1482455 A GB1482455 A GB 1482455A GB 769657 A GB769657 A GB 769657A
Authority
GB
United Kingdom
Prior art keywords
lever
blade
contacts
lug
carries
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
GB14824/55A
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.)
Individual
Original Assignee
Individual
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 Individual filed Critical Individual
Publication of GB769657A publication Critical patent/GB769657A/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
    • H01H73/22—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 having electrothermal release and no other automatic release
    • H01H73/30—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 having electrothermal release and no other automatic release reset by push-button, pull-knob or slide
    • H01H73/306—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 having electrothermal release and no other automatic release reset by push-button, pull-knob or slide the push-button supporting pivotally a combined contact-latch lever
    • 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
    • H01H71/46—Automatic release mechanisms with or without manual release having means for operating auxiliary contacts additional to the main contacts

Landscapes

  • Thermally Actuated Switches (AREA)
  • Push-Button Switches (AREA)
  • Breakers (AREA)

Abstract

769,657. Automatic circuit breakers. ALLARD, G. May 23, 1955 [May 31, 1954], No. 14824/55. Class 38(5) In a circuit breaker which may be tripped automatically or by hand, an operating member 8 attached to a push button 7 is formed with a knife-edge 12 about which a contact carrying lever 5 may pivot and also with a blade 10 having a lug 16 whicn engages an independent L-shaped latching member 11. The blade 10 and a further blade 9 pass through apertures in the lever which is formed from blades 5<SP>1</SP>, 5<SP>11</SP>, 5<SP>111</SP> ' and which carries at one end main and arcing contacts 4,and 4<SP>1</SP> to co-operate with a fixed contact 3. The other end of the lever rests on a stop member 20 which is pivoted at 22 and biased to the left, Fig. 1, by a spring 23. A spring 6 disposed around the blade 9 biases the lever to the "contacts open position. Depression of the button tilts the lever about the top of the stop member 20 until the contacts close and the latch engages (as shown in Fig. 1). The switch may be tripped either by depression of the button 30 of by expansion of a bimetal 33 when the stop 20 is moved to the right, Fig. 1, and the lever pivots about the knife edge 12 so that its right hand portion engages the top of the latch 11. tilting it to release the lug 16. The lever 5 carries a lug 38 (see Fig. 5) engaging a plate 42 which carries a contact 41 which bridges contacts 40, 40<SP>1</SP> of an auxiliary circuit when the main switch is closed.
GB14824/55A 1954-05-31 1955-05-23 Improvements in or relating to automatic circuit breakers Expired GB769657A (en)

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
FR1040668X 1954-05-31

Publications (1)

Publication Number Publication Date
GB769657A true GB769657A (en) 1957-03-13

Family

ID=9589077

Family Applications (1)

Application Number Title Priority Date Filing Date
GB14824/55A Expired GB769657A (en) 1954-05-31 1955-05-23 Improvements in or relating to automatic circuit breakers

Country Status (7)

Country Link
US (1) US2768262A (en)
BE (1) BE538333A (en)
CH (1) CH325268A (en)
DE (1) DE1040668B (en)
FR (1) FR1105604A (en)
GB (1) GB769657A (en)
NL (1) NL89986C (en)

Cited By (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
DE2705330A1 (en) * 1977-02-09 1978-08-10 Bbc Brown Boveri & Cie Automatic protective circuit breaker for motors - has lever holding make push button in ON position and tripped during switching=off

Families Citing this family (7)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
FR1142759A (en) * 1956-02-18 1957-09-23 Labinal Ets Improvements made to devices such as circuit breakers
BE556706A (en) * 1956-04-28
US2930937A (en) * 1958-01-16 1960-03-29 Rowan Controller Company Circuit protector
DE1051951B (en) * 1958-02-27 1959-03-05 Ellenberger & Poensgen Push-button overcurrent switch
DE1129602B (en) * 1959-10-26 1962-05-17 Ellenberger & Poensgen Push-button overcurrent switch
FR1412354A (en) * 1960-07-20 1965-10-01 Tripping device for movable beam switches and devices with one or more poles with application
TW389926B (en) * 1998-12-24 2000-05-11 Primax Electronics Ltd An over-current cut-off electric switch

Family Cites Families (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
BE509828A (en) * 1951-03-27
US2701829A (en) * 1951-08-03 1955-02-08 Cutler Hammer Inc Manually operable circuit breaker

Cited By (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
DE2705330A1 (en) * 1977-02-09 1978-08-10 Bbc Brown Boveri & Cie Automatic protective circuit breaker for motors - has lever holding make push button in ON position and tripped during switching=off

Also Published As

Publication number Publication date
NL89986C (en) 1959-01-15
BE538333A (en) 1955-06-15
FR1105604A (en) 1955-12-06
NL197596B (en) 1958-08-15
CH325268A (en) 1957-10-31
DE1040668B (en) 1958-10-09
US2768262A (en) 1956-10-23

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