GB859137A - Improvements relating to electromagnetic relays - Google Patents
Improvements relating to electromagnetic relaysInfo
- Publication number
- GB859137A GB859137A GB2630059A GB2630059A GB859137A GB 859137 A GB859137 A GB 859137A GB 2630059 A GB2630059 A GB 2630059A GB 2630059 A GB2630059 A GB 2630059A GB 859137 A GB859137 A GB 859137A
- Authority
- GB
- United Kingdom
- Prior art keywords
- armature
- polepieces
- magnetic
- magnet
- coil
- 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
- H01H51/00—Electromagnetic relays
- H01H51/01—Relays in which the armature is maintained in one position by a permanent magnet and freed by energisation of a coil producing an opposing magnetic field
Landscapes
- Physics & Mathematics (AREA)
- Electromagnetism (AREA)
- Braking Arrangements (AREA)
Abstract
859,137. Electrically - released switches. WESTINGHOUSE BRAKE & SIGNAL CO. Ltd. July 31, 1959, No. 26300/59. Addition to 811,367. Class 38 (5). A relay which is retained set, after electromagnetic actuation, by permanent magnetism and which has a permanent magnet and release coil as parts of a magnetic circuit separate from that of the operating coil as in the parent Specification, has a magnetic shunt, including an air gap, across the permanent magnet. As shown, a pivoted armature 16 is attracted, against the bias of a spring 19, to poles 12, 13 on energization of a coil 15, to actuate contacts (not shown) coupled to a lug 20. The armature approaches but does not engage the ends of cores 26, 27 which carry release coils 28, 29 and are secured to polepieces 23, 24 and a magnet 21. When the armature is in the attracted position the gap between it and the core ends is less than the gap 25 between the polepieces 23, 24 which normally forms a shunt path for the permanent flux. The cores 26, 27 release coils 28, 29, polepieces 23, 24, magnet 21 and a magnetic back-strap 22 are carried on a non-magnetic bracket 32 attached to the polepiece 12, this support means being sufficient since the core ends are not " hammered " by armature impact.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| GB2630059A GB859137A (en) | 1959-07-31 | 1959-07-31 | Improvements relating to electromagnetic relays |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| GB2630059A GB859137A (en) | 1959-07-31 | 1959-07-31 | Improvements relating to electromagnetic relays |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| GB859137A true GB859137A (en) | 1961-01-18 |
Family
ID=10241468
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| GB2630059A Expired GB859137A (en) | 1959-07-31 | 1959-07-31 | Improvements relating to electromagnetic relays |
Country Status (1)
| Country | Link |
|---|---|
| GB (1) | GB859137A (en) |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| US3189716A (en) * | 1961-09-15 | 1965-06-15 | Joy Mfg Co | Electrical contactor |
-
1959
- 1959-07-31 GB GB2630059A patent/GB859137A/en not_active Expired
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| US3189716A (en) * | 1961-09-15 | 1965-06-15 | Joy Mfg Co | Electrical contactor |
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