GB617625A - Improvements in or relating to electric circuit breakers - Google Patents
Improvements in or relating to electric circuit breakersInfo
- Publication number
- GB617625A GB617625A GB16260/46A GB1626046A GB617625A GB 617625 A GB617625 A GB 617625A GB 16260/46 A GB16260/46 A GB 16260/46A GB 1626046 A GB1626046 A GB 1626046A GB 617625 A GB617625 A GB 617625A
- Authority
- GB
- United Kingdom
- Prior art keywords
- lever
- bar
- contacts
- pivoted
- toggle
- 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
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
Landscapes
- Physics & Mathematics (AREA)
- Electromagnetism (AREA)
- Breakers (AREA)
Abstract
617,625. Automatic circuit-breakers. PIPPONZI, A. May 28, 1946, No. 16260. Convention date, May 24, 1945. [A Specification was laid open to inspection under Sect. 91 of the Acts, Oct. 22, 1946.] [Class 38 (v)] In a multipole circuit-breaker the fixed contacts 1 are bridged by contacts 2 mounted on insulating blocks 3<1> loosely attached to a common carrier bar 3 guided on rods 11, 12, by a part 15 passing through the block 3<1> which is secured by a cotter-pin 16 under the bar 3, Fig. 3. Contact pressure is provided by a single spring 8 compressed between the bar 3 and a plunger 7 attached to the toggle mechanism. With an odd number of poles, the contact bridges may be mounted on a circular or polygonal carrier to provide balanced contact pressure from the central spring. The toggle mechanism comprises a lever 5 pivoted at 19 to the handle 20, and a lever 4 pivoted to the member 7 and latched by its extended. arm 41 engaging between the nose 611 of a trip lever 6 pivoted.at 19 and a stop-lug 22 provided on the lever 6 so that the toggle is maintained underset. When the'tail 6<1> of the trip-lever is struck by the armature 23 of an electromagnet 24, the toggle collapses under endwise pressure. of the spring 8 and a nut 10 on the plunger 7 forcibly strikes the bar 3 which rises under the action of the opening springs 13, 13<1>, which maintain the contacts open. The Specification as open to inspection under Sect. 91 states that a bimetal strip heated by conduction from a metal cylinder surrounded by the electromagnet coil may operate the trip arm on prolonged small overloads, Fig. 6 (Cancelled) (not shown), and an iron wire or similar high temperature-coefficient resistance may shunt the magnet coil to provide a time delay, Fig. 5 (Cancelled) (not shown). Also, arcing contacts and magnetic blow-out plates may be provided. This matter does not appear in the Specification as accepted.
Applications Claiming Priority (2)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
IT2529662X | 1945-04-21 | ||
IT617625X | 1945-05-24 |
Publications (1)
Publication Number | Publication Date |
---|---|
GB617625A true GB617625A (en) | 1949-02-09 |
Family
ID=32232511
Family Applications (1)
Application Number | Title | Priority Date | Filing Date |
---|---|---|---|
GB16260/46A Expired GB617625A (en) | 1945-04-21 | 1946-05-28 | Improvements in or relating to electric circuit breakers |
Country Status (3)
Country | Link |
---|---|
US (1) | US2529662A (en) |
FR (1) | FR925478A (en) |
GB (1) | GB617625A (en) |
Cited By (1)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
DE1061418B (en) * | 1956-09-15 | 1959-07-16 | Siemens Ag | Electric switch provided with a toggle handle, in particular circuit breaker |
Families Citing this family (4)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
US2700711A (en) * | 1951-12-14 | 1955-01-25 | Heinemann Electric Co | Automatic circuit breaker |
US2743338A (en) * | 1952-10-27 | 1956-04-24 | Ite Circuit Breaker Ltd | Low voltage, high current switch |
US2926225A (en) * | 1958-01-23 | 1960-02-23 | Ark Les Switch Corp | Electric switches |
IL35495A (en) * | 1969-10-31 | 1974-01-14 | Bunker Ramo | Switch assembly for distribution panels |
Family Cites Families (9)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
US522527A (en) * | 1894-07-03 | Electric automatic circuit-breaker | ||
US2123063A (en) * | 1938-07-05 | Resistance welding apparatus | ||
US1327790A (en) * | 1916-01-05 | 1920-01-13 | Westinghouse Electric & Mfg Co | Ignition system |
US1816429A (en) * | 1927-09-22 | 1931-07-28 | Trumbull Electric Mfg Co | Electric switch |
US1909057A (en) * | 1932-04-23 | 1933-05-16 | Union Switch & Signal Co | Railway traffic controlling apparatus |
GB415413A (en) * | 1933-02-21 | 1934-08-21 | John Ashworth Crabtree | Improvements in automatic electrical circuit breakers |
USRE20094E (en) * | 1934-02-10 | 1936-09-01 | Electric switch | |
US2273545A (en) * | 1937-09-22 | 1942-02-17 | Square D Co | Electric switch |
US2312753A (en) * | 1940-10-17 | 1943-03-02 | Wadsworth Electric Mfg Co | Circuit breaker |
-
1946
- 1946-04-03 US US659195A patent/US2529662A/en not_active Expired - Lifetime
- 1946-04-10 FR FR925478D patent/FR925478A/en not_active Expired
- 1946-05-28 GB GB16260/46A patent/GB617625A/en not_active Expired
Cited By (1)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
DE1061418B (en) * | 1956-09-15 | 1959-07-16 | Siemens Ag | Electric switch provided with a toggle handle, in particular circuit breaker |
Also Published As
Publication number | Publication date |
---|---|
US2529662A (en) | 1950-11-14 |
FR925478A (en) | 1947-09-04 |
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