GB418361A - Improvements in or relating to automatic circuit-breakers - Google Patents
Improvements in or relating to automatic circuit-breakersInfo
- Publication number
- GB418361A GB418361A GB149233A GB149233A GB418361A GB 418361 A GB418361 A GB 418361A GB 149233 A GB149233 A GB 149233A GB 149233 A GB149233 A GB 149233A GB 418361 A GB418361 A GB 418361A
- Authority
- GB
- United Kingdom
- Prior art keywords
- arm
- tappet
- breakers
- release
- lever
- 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
- H01H71/00—Details of the protective switches or relays covered by groups H01H73/00 - H01H83/00
- H01H71/74—Means for adjusting the conditions under which the device will function to provide protection
- H01H71/7418—Adjusting both electrothermal and electromagnetic mechanism
Landscapes
- Physics & Mathematics (AREA)
- Electromagnetism (AREA)
- Breakers (AREA)
Abstract
418,361. Automatic circuit-breakers. CRABTREE, J. A., Endwood, Little Aston Park, Sutton Coldfield. Jan. 17, 1933, No. 1492. Divided out of 415,393. [Class 38 (v).] A circuit-breaker comprises a switchlocking and release mechanism which is mounted in a fixed housing or frame, a thermal-release device which is mounted independently of the mechanism housing, and an adjustable tappet-lever which is mounted on the frame and is adapted to transmit the release movement from the thermal device to the trip catch of the mechanism. As applied to the breaker disclosed in Specification 415,129, the mechanism housing j supports the trip-lever g, the arm g<2> of which is engaged for tripping by a tappet m, the arm m<1> of which is engaged by the bimetal element h. The tappet is mounted at one end of an arm n pivoted to j at n<1> and provided with an adjusting screw n<2> whereby the clearance between m, g<2> can be altered. Initial calibration is effected in the manner disclosed in Specification 415,393. Reference has been directed by the Comptroller to Specification 306,004, [Class 38 (v)].
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| GB149233A GB418361A (en) | 1933-01-17 | 1933-01-17 | Improvements in or relating to automatic circuit-breakers |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| GB149233A GB418361A (en) | 1933-01-17 | 1933-01-17 | Improvements in or relating to automatic circuit-breakers |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| GB418361A true GB418361A (en) | 1934-10-17 |
Family
ID=9722938
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| GB149233A Expired GB418361A (en) | 1933-01-17 | 1933-01-17 | Improvements in or relating to automatic circuit-breakers |
Country Status (1)
| Country | Link |
|---|---|
| GB (1) | GB418361A (en) |
Cited By (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| US2981811A (en) * | 1957-08-22 | 1961-04-25 | Gen Electric | Circuit breaker |
| DE1114908B (en) * | 1958-07-17 | 1961-10-12 | Siemens Ag | Electric self-switch with manual and free release |
| GB2201839A (en) * | 1987-05-23 | 1988-09-07 | Bbc Brown Boveri & Cie | Electric switchgear |
| CN111180282A (en) * | 2020-01-09 | 2020-05-19 | 江苏辉能电气有限公司 | Thermal tripping device of high-capacity molded case circuit breaker and molded case circuit breaker |
-
1933
- 1933-01-17 GB GB149233A patent/GB418361A/en not_active Expired
Cited By (6)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| US2981811A (en) * | 1957-08-22 | 1961-04-25 | Gen Electric | Circuit breaker |
| DE1114908B (en) * | 1958-07-17 | 1961-10-12 | Siemens Ag | Electric self-switch with manual and free release |
| GB2201839A (en) * | 1987-05-23 | 1988-09-07 | Bbc Brown Boveri & Cie | Electric switchgear |
| GB2201839B (en) * | 1987-05-23 | 1989-05-17 | Bbc Brown Boveri & Cie | Electric switchgear |
| CN111180282A (en) * | 2020-01-09 | 2020-05-19 | 江苏辉能电气有限公司 | Thermal tripping device of high-capacity molded case circuit breaker and molded case circuit breaker |
| CN111180282B (en) * | 2020-01-09 | 2022-03-29 | 江苏辉能电气有限公司 | Thermal tripping device of high-capacity molded case circuit breaker and molded case circuit breaker |
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