GB517001A - Improvements relating to electromagnetic relays - Google Patents
Improvements relating to electromagnetic relaysInfo
- Publication number
- GB517001A GB517001A GB21112/38A GB2111238A GB517001A GB 517001 A GB517001 A GB 517001A GB 21112/38 A GB21112/38 A GB 21112/38A GB 2111238 A GB2111238 A GB 2111238A GB 517001 A GB517001 A GB 517001A
- Authority
- GB
- United Kingdom
- Prior art keywords
- armature
- poles
- electromagnetic relays
- magnets
- improvements relating
- 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
- H01H51/22—Polarised relays
- H01H51/2272—Polarised relays comprising rockable armature, rocking movement around central axis parallel to the main plane of the armature
- H01H51/2281—Contacts rigidly combined with armature
Abstract
517,001. Electromagnetic relays. WESTING- HOUSE BRAKE & SIGNAL CO., Ltd. July 15, 1938, No. 21112. Convention date, March 5, 1938. [Class 38 (v)] A polarized relay comprises an armature 5 pivoted at 6 and adapted to swing towards one or other of two poles 1c, 2c according to the direction of current in a winding 4, the poles 1c, 2c being premagnetized so as to be normally of like polarity by means of two permanent magnets 9, 10. The lower poles of the magnets 9 10 may be arranged near the ends of the armature 5 as shown, or near the middle (Fig. 2, not shown). In another modification the magnets 9, 10 are arranged above the armature (Fig. 3, not shown).
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| US517000XA | 1938-03-05 | 1938-03-05 |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| GB517001A true GB517001A (en) | 1940-01-17 |
Family
ID=21972836
Family Applications (2)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| GB21111/38A Expired GB517000A (en) | 1938-03-05 | 1938-07-15 | Improvements relating to electromagnetic relays |
| GB21112/38A Expired GB517001A (en) | 1938-03-05 | 1938-07-15 | Improvements relating to electromagnetic relays |
Family Applications Before (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| GB21111/38A Expired GB517000A (en) | 1938-03-05 | 1938-07-15 | Improvements relating to electromagnetic relays |
Country Status (2)
| Country | Link |
|---|---|
| FR (1) | FR850666A (en) |
| GB (2) | GB517000A (en) |
Cited By (5)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| US2612544A (en) * | 1948-09-16 | 1952-09-30 | Sigma Instruments Inc | Polarized electromagnetic device |
| US2716232A (en) * | 1950-10-25 | 1955-08-23 | Bell Telephone Labor Inc | Flux modulated ringer |
| US2741728A (en) * | 1952-08-29 | 1956-04-10 | Ericsson Telephones Ltd | Polarized electromagnetic devices |
| US2982871A (en) * | 1956-10-22 | 1961-05-02 | Mckenzie & Holland Australia P | Flasher relays |
| DE1288683B (en) * | 1963-08-21 | 1969-02-06 | Hi G Inc | Electromagnetic relay |
Families Citing this family (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| DE1086809B (en) * | 1956-04-12 | 1960-08-11 | Ericsson Telefon Ab L M | Polarized magnet arrangement |
| FR1295514A (en) * | 1961-04-27 | 1962-06-08 | Csf | Polarized electromagnetic relay |
| US3157870A (en) * | 1961-05-09 | 1964-11-17 | Marquette Corp | Method and means of voltage testing |
-
1938
- 1938-07-15 GB GB21111/38A patent/GB517000A/en not_active Expired
- 1938-07-15 GB GB21112/38A patent/GB517001A/en not_active Expired
-
1939
- 1939-02-21 FR FR850666D patent/FR850666A/en not_active Expired
Cited By (5)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| US2612544A (en) * | 1948-09-16 | 1952-09-30 | Sigma Instruments Inc | Polarized electromagnetic device |
| US2716232A (en) * | 1950-10-25 | 1955-08-23 | Bell Telephone Labor Inc | Flux modulated ringer |
| US2741728A (en) * | 1952-08-29 | 1956-04-10 | Ericsson Telephones Ltd | Polarized electromagnetic devices |
| US2982871A (en) * | 1956-10-22 | 1961-05-02 | Mckenzie & Holland Australia P | Flasher relays |
| DE1288683B (en) * | 1963-08-21 | 1969-02-06 | Hi G Inc | Electromagnetic relay |
Also Published As
| Publication number | Publication date |
|---|---|
| FR850666A (en) | 1939-12-22 |
| GB517000A (en) | 1940-01-17 |
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