GB956682A - Improvements in or relating to circuit breakers - Google Patents
Improvements in or relating to circuit breakersInfo
- Publication number
- GB956682A GB956682A GB11074/61A GB1107461A GB956682A GB 956682 A GB956682 A GB 956682A GB 11074/61 A GB11074/61 A GB 11074/61A GB 1107461 A GB1107461 A GB 1107461A GB 956682 A GB956682 A GB 956682A
- Authority
- GB
- United Kingdom
- Prior art keywords
- lever
- toggle
- pivot
- pivoted
- latch
- 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
Links
- 230000006835 compression Effects 0.000 abstract 1
- 238000007906 compression Methods 0.000 abstract 1
- 239000002184 metal Substances 0.000 abstract 1
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
- H01H73/36—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 electromagnetic release and no other automatic release
- H01H73/38—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 electromagnetic release and no other automatic release reset by 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
-
- H—ELECTRICITY
- H01—ELECTRIC ELEMENTS
- H01H—ELECTRIC SWITCHES; RELAYS; SELECTORS; EMERGENCY PROTECTIVE DEVICES
- H01H9/00—Details of switching devices, not covered by groups H01H1/00 - H01H7/00
- H01H9/02—Bases, casings, or covers
- H01H9/04—Dustproof, splashproof, drip-proof, waterproof, or flameproof casings
Landscapes
- Physics & Mathematics (AREA)
- Electromagnetism (AREA)
- Breakers (AREA)
- Rotary Switch, Piano Key Switch, And Lever Switch (AREA)
Abstract
956,682. Automatic circuit-breakers; tumbler switches. AIRPAX ELECTRONICS Inc. March 27, 1961 [June 22, 1960], No. 11074/61. Heading H2B. In an automatic circuit-breaker having cooperating contacts on first and second pivoted levers the first lever is by an electromagnetically releasable latch and the second lever is resilient and rotatable by a manually operated toggle mechanism which is adapted to flex the second lever in the contact closed position. As shown, both contact levers 28, 24 are pivoted at 23 to the frame 2 and carry respective contacts 29, 27. The levers are biased apart by a spring 23<SP>1</SP> on the pivot 23 and the clockwise movement of the lever 28 is normally limited by its engagement with a latch 22. The resilient lever 24 is pivotally connected at 25 to a toggle link 26 having its other end pivoted at 33 on the end of a handle 6 which has a fixed pivot 7. A compression spring 38 between a block 34 on the pivot-pin 33 and a pivoted block 35 biases the toggle links to the Fig. 1 position. When the handle 6 is moved to the Fig. 2 position the contact 27 engages the contact 29 before the toggle pivot 33 crosses the centre line between pivots 25, 7. During the final over-centre movement the lever 24 is stressed and when the movement is complete the biasing force of the lever 24 on the pivot 25 of the toggle 26, 6 is sufficient to hold the toggle over-centre against the component of the force of the spring 38 normal to the axis 25, 7. On overload the series electromagnet 11, 13 attracts a balanced pivotal armature 16 which during its movement engages a co-pivotal member 21 having an extension forming the latch 22 which releases the lever 28. The lever 28 moves clockwise reducing the stress on the lever 24 so as to allow the spring 38 to move the toggle 26, 6 over-centre and restore the switch to the Fig. 2 position. A pin 31 on the link 26 engages the end 30 of the lever 28 to reset the latch 22 and lever 28. The metal casing 45 is sealed to the switch mounting plate 1 and to terminal bushings 10 and a rubber diaphragm 8 completes the sealed enclosure.
Applications Claiming Priority (1)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
US37942A US3083281A (en) | 1960-06-22 | 1960-06-22 | Circuit breakers |
Publications (1)
Publication Number | Publication Date |
---|---|
GB956682A true GB956682A (en) | 1964-04-29 |
Family
ID=21897187
Family Applications (1)
Application Number | Title | Priority Date | Filing Date |
---|---|---|---|
GB11074/61A Expired GB956682A (en) | 1960-06-22 | 1961-03-27 | Improvements in or relating to circuit breakers |
Country Status (3)
Country | Link |
---|---|
US (1) | US3083281A (en) |
DE (1) | DE1137112B (en) |
GB (1) | GB956682A (en) |
Families Citing this family (2)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
US3182151A (en) * | 1962-03-28 | 1965-05-04 | Airpax Electronics | Remote indicating circuit breakers |
US3317865A (en) * | 1965-08-10 | 1967-05-02 | Airpax Electronics | Circuit breaker with mometary by-pass |
Family Cites Families (9)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
NL44395C (en) * | 1935-09-12 | |||
US2107246A (en) * | 1936-06-01 | 1938-02-01 | Square D Co | Circuit breaker |
US2182773A (en) * | 1939-02-27 | 1939-12-05 | Colt S Mfg Co | Automatic circuit breaker |
US2421830A (en) * | 1942-12-04 | 1947-06-10 | Cole Ind Inc | Multipole tripping device |
US2473848A (en) * | 1947-08-21 | 1949-06-21 | Westinghouse Electric Corp | Circuit breaker |
US2685011A (en) * | 1948-06-10 | 1954-07-27 | Wadsworth Electric Mfg Co | Electric circuit breaker |
US2677734A (en) * | 1948-06-10 | 1954-05-04 | Wadsworth Electric Mfg Co | Electric circuit breaker |
US2690486A (en) * | 1951-06-26 | 1954-09-28 | Heinemann Electric Co | Circuit breaker |
US2692925A (en) * | 1951-08-28 | 1954-10-26 | Mcgraw Electric Co | Circuit interrupter |
-
1960
- 1960-06-22 US US37942A patent/US3083281A/en not_active Expired - Lifetime
-
1961
- 1961-03-27 GB GB11074/61A patent/GB956682A/en not_active Expired
- 1961-04-01 DE DEA37116A patent/DE1137112B/en active Pending
Also Published As
Publication number | Publication date |
---|---|
DE1137112B (en) | 1962-09-27 |
US3083281A (en) | 1963-03-26 |
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