GB756347A - Improvements relating to stressed operating mechanisms, for example for operating electric circuit-breakers - Google Patents
Improvements relating to stressed operating mechanisms, for example for operating electric circuit-breakersInfo
- Publication number
- GB756347A GB756347A GB1548953A GB1548953A GB756347A GB 756347 A GB756347 A GB 756347A GB 1548953 A GB1548953 A GB 1548953A GB 1548953 A GB1548953 A GB 1548953A GB 756347 A GB756347 A GB 756347A
- Authority
- GB
- United Kingdom
- Prior art keywords
- lever
- latch
- breakers
- train
- operating
- 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
- H01H71/10—Operating or release mechanisms
- H01H71/50—Manual reset mechanisms which may be also used for manual release
- H01H71/505—Latching devices between operating and release mechanism
Landscapes
- Breakers (AREA)
Abstract
756,347. Automatic circuit-breakers. REYROLLE & CO., Ltd., A. June 4, 1954 [June 4, 1953]. No. 15489/53. Class 38(5) In order to overcome friction of the movable parts, which may prevent opening of the breaker when tripped, one of the elements in the train of mechanism between the spring (or other opening force), and the latch 13 is resilient so as to be deflected by the force transmitted through it. In Fig. 1, the train (not shown), terminates at 17 in a lever system 11a, 11b collectively pivoted at 15a and interconnected by'a pivot 18 and a spring 20 compressed between lever 11b and the head 22 of a pin 21 fixed to lever 11a. When the latch 13 releases the lever 11b the latter strikes the lever 11a (or a cushion 23 carried thereon), so as to overcome bearing friction in the movable parts. In Fig. 2 (not shown), the lever system is replaced by a single resilient strip carrying a weight at its end which engages the latch. In Fig. 3, a rigid latch arm 40 is connected to a lever 42 of the train by a torsion spring 43 surrounding a shaft 41 carrying the lever 42.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| GB1548953A GB756347A (en) | 1953-06-04 | 1953-06-04 | Improvements relating to stressed operating mechanisms, for example for operating electric circuit-breakers |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| GB1548953A GB756347A (en) | 1953-06-04 | 1953-06-04 | Improvements relating to stressed operating mechanisms, for example for operating electric circuit-breakers |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| GB756347A true GB756347A (en) | 1956-09-05 |
Family
ID=10060027
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| GB1548953A Expired GB756347A (en) | 1953-06-04 | 1953-06-04 | Improvements relating to stressed operating mechanisms, for example for operating electric circuit-breakers |
Country Status (1)
| Country | Link |
|---|---|
| GB (1) | GB756347A (en) |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| DE1141365B (en) * | 1959-06-16 | 1962-12-20 | Crabtree & Co Ltd J A | Electric circuit breaker |
-
1953
- 1953-06-04 GB GB1548953A patent/GB756347A/en not_active Expired
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| DE1141365B (en) * | 1959-06-16 | 1962-12-20 | Crabtree & Co Ltd J A | Electric circuit breaker |
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