GB511563A - Improvements in electromagnetic relays - Google Patents
Improvements in electromagnetic relaysInfo
- Publication number
- GB511563A GB511563A GB28495/38A GB2849538A GB511563A GB 511563 A GB511563 A GB 511563A GB 28495/38 A GB28495/38 A GB 28495/38A GB 2849538 A GB2849538 A GB 2849538A GB 511563 A GB511563 A GB 511563A
- Authority
- GB
- United Kingdom
- Prior art keywords
- contact
- relay
- movement
- during
- spring
- 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
- 238000004804 winding Methods 0.000 abstract 4
- 230000004048 modification Effects 0.000 abstract 1
- 238000012986 modification Methods 0.000 abstract 1
- 230000000717 retained effect Effects 0.000 abstract 1
- 238000000926 separation method Methods 0.000 abstract 1
Classifications
-
- H—ELECTRICITY
- H01—ELECTRIC ELEMENTS
- H01H—ELECTRIC SWITCHES; RELAYS; SELECTORS; EMERGENCY PROTECTIVE DEVICES
- H01H51/00—Electromagnetic relays
- H01H51/02—Non-polarised relays
- H01H51/04—Non-polarised relays with single armature; with single set of ganged armatures
Landscapes
- Physics & Mathematics (AREA)
- Electromagnetism (AREA)
- Interface Circuits In Exchanges (AREA)
- Breakers (AREA)
- Electromagnets (AREA)
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| SE511563X | 1937-11-27 |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| GB511563A true GB511563A (en) | 1939-08-21 |
Family
ID=20310977
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| GB28495/38A Expired GB511563A (en) | 1937-11-27 | 1938-09-30 | Improvements in electromagnetic relays |
Country Status (5)
| Country | Link |
|---|---|
| US (1) | US2301894A (pm) |
| BE (1) | BE431313A (pm) |
| DE (1) | DE715383C (pm) |
| FR (1) | FR846645A (pm) |
| GB (1) | GB511563A (pm) |
Families Citing this family (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| US2534797A (en) * | 1949-10-14 | 1950-12-19 | James A Rugh | Switch holding and release mechanism |
-
0
- BE BE431313D patent/BE431313A/xx unknown
-
1938
- 1938-09-30 GB GB28495/38A patent/GB511563A/en not_active Expired
- 1938-11-24 DE DET51352D patent/DE715383C/de not_active Expired
- 1938-11-26 FR FR846645D patent/FR846645A/fr not_active Expired
-
1939
- 1939-04-12 US US267500A patent/US2301894A/en not_active Expired - Lifetime
Also Published As
| Publication number | Publication date |
|---|---|
| BE431313A (pm) | |
| US2301894A (en) | 1942-11-10 |
| DE715383C (de) | 1941-12-20 |
| FR846645A (fr) | 1939-09-21 |
Similar Documents
| Publication | Publication Date | Title |
|---|---|---|
| GB511563A (en) | Improvements in electromagnetic relays | |
| US2001095A (en) | Two-party line telephone system | |
| US1746327A (en) | Telephone system | |
| US2277191A (en) | Combined line and cutoff relay for telephone systems | |
| US2400148A (en) | Telephone call transmitting device | |
| US1527434A (en) | Automatic telephone system | |
| US2020816A (en) | Automatic telephone system | |
| US3482056A (en) | Identification of a subscriber's request for service | |
| US2486231A (en) | Private automatic telephone exchanges employing nonnumerical switches for interconnecting local lines, and for interconnecting local lines and trunk lines | |
| US2529409A (en) | Selector switch for automatic telephone systems | |
| US2504814A (en) | Lockout device for party line telephones | |
| US1254290A (en) | Telephone meter-service system. | |
| GB397912A (en) | Improvements in or relating to telephone systems | |
| US2170903A (en) | Telephone system | |
| US3155793A (en) | Electromagnetic relay for telephone pay station | |
| US2286135A (en) | Impulse mechanism | |
| GB332275A (en) | Improvements in or relating to electrical relays | |
| US1851139A (en) | Telephone system | |
| US1196793A (en) | Automatic telephone-exchange system. | |
| US1298414A (en) | Telephone system. | |
| US1251545A (en) | Telephone switching system. | |
| GB283193A (en) | Improvements in or relating to telephone systems | |
| GB265971A (en) | Improvements in or relating to telephone systems | |
| GB191418154A (en) | Improvements in Selecting Devices for Automatic or Semi-automatic Telephone Systems. | |
| GB191318160A (en) | Improvements in and relating to Telephone Locking System. |