GB571569A - Lock-out means for electric contactors and the like electric circuit-breaking devices - Google Patents
Lock-out means for electric contactors and the like electric circuit-breaking devicesInfo
- Publication number
- GB571569A GB571569A GB2122343A GB2122343A GB571569A GB 571569 A GB571569 A GB 571569A GB 2122343 A GB2122343 A GB 2122343A GB 2122343 A GB2122343 A GB 2122343A GB 571569 A GB571569 A GB 571569A
- Authority
- GB
- United Kingdom
- Prior art keywords
- electric
- latch
- lock
- out means
- contactor
- 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
- H01H50/00—Details of electromagnetic relays
- H01H50/16—Magnetic circuit arrangements
- H01H50/18—Movable parts of magnetic circuits, e.g. armature
- H01H50/32—Latching movable parts mechanically
- H01H50/321—Latching movable parts mechanically the mechanical latch being controlled directly by the magnetic flux or part of it
Landscapes
- Physics & Mathematics (AREA)
- Electromagnetism (AREA)
- Breakers (AREA)
Abstract
571,569. Electromagnetic switches. CLARKE, R., and LAURENCE SCOTT, & ELECTROMOTORS, Ltd. Dec. 17, 1943, No. 21223. Class 38 (v)] A spring-pressed pivoted latch 19, prevents the armature 3 of a contactor from closing under shock or vibration while the contactor is de-energized. On energization of the magnet, flux first builds up in a secondary magnetic circuit 20, 19, to cause the latch 19 to move about a pivot 8 into the position shown freeing the armature 3 so that this then moves to the right into the position shown. This movement operates the contacts and also short-circuits the secondary magnetic circuit so that the latch 19 then falls on to a stop 61 and is ready to assume its original latching position immediately the magnet is deenergized. Specification 547,362 is referred to.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| GB2122343A GB571569A (en) | 1943-12-17 | 1943-12-17 | Lock-out means for electric contactors and the like electric circuit-breaking devices |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| GB2122343A GB571569A (en) | 1943-12-17 | 1943-12-17 | Lock-out means for electric contactors and the like electric circuit-breaking devices |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| GB571569A true GB571569A (en) | 1945-08-30 |
Family
ID=10159265
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| GB2122343A Expired GB571569A (en) | 1943-12-17 | 1943-12-17 | Lock-out means for electric contactors and the like electric circuit-breaking devices |
Country Status (1)
| Country | Link |
|---|---|
| GB (1) | GB571569A (en) |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| US2821596A (en) * | 1954-06-21 | 1958-01-28 | Westinghouse Electric Corp | Trip device for circuit breakers |
-
1943
- 1943-12-17 GB GB2122343A patent/GB571569A/en not_active Expired
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| US2821596A (en) * | 1954-06-21 | 1958-01-28 | Westinghouse Electric Corp | Trip device for circuit breakers |
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