GB580278A - Improvements in or relating to electromagnetic circuit controllers - Google Patents
Improvements in or relating to electromagnetic circuit controllersInfo
- Publication number
- GB580278A GB580278A GB12662/44A GB1266244A GB580278A GB 580278 A GB580278 A GB 580278A GB 12662/44 A GB12662/44 A GB 12662/44A GB 1266244 A GB1266244 A GB 1266244A GB 580278 A GB580278 A GB 580278A
- Authority
- GB
- United Kingdom
- Prior art keywords
- relay
- contacts
- switch
- coil
- electromagnetic
- 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
- H01H50/30—Mechanical arrangements for preventing or damping vibration or shock, e.g. by balancing of armature
Landscapes
- Physics & Mathematics (AREA)
- Electromagnetism (AREA)
- Relay Circuits (AREA)
Abstract
580,278. Electromagnetic switches. IGRANIC ELECTRIC CO., Ltd., July 3, 1944, No. 12662. Convention date, July 12, 1943. [Class 38 (v)] An electromagnetic switch 7 is associated mechanically and electrically with an electromagnetic relay 12 of greater stability under shock. In the form shown in Fig. 1 the relay 12 has two movable cores 13 and 14 linked at 21 so that they must move together into or out of the coil and when de-energized, a lever 25 positively prevents the switch 7 from closing under shock. A suitable circuit arrangement is shown in Fig. 3. Depression of a push 36 energizes the coil 12 of the relay causing the closure of contacts 19, 20 and 37, 38, thereby establishing a circuit through the coil 7 of the electromagnetic switch and a maintaining circuit through the relay coil 12. The relay contacts will remain closed under shock so that should a shock open the switch contacts 2, 5, they will immediately re-close. Loss of voltage however will cause the relay contacts to open and therefore also the switch contacts. Specification 580,279 is referred to.
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| US494279A US2385779A (en) | 1943-07-12 | 1943-07-12 | Electromagnetic circuit controller |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| GB580278A true GB580278A (en) | 1946-09-02 |
Family
ID=23963835
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| GB12662/44A Expired GB580278A (en) | 1943-07-12 | 1944-07-03 | Improvements in or relating to electromagnetic circuit controllers |
Country Status (2)
| Country | Link |
|---|---|
| US (1) | US2385779A (en) |
| GB (1) | GB580278A (en) |
Families Citing this family (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| US2598757A (en) * | 1949-03-30 | 1952-06-03 | Robert O Brunsell | Electric stop mechanism for jeeps |
| US2766588A (en) * | 1951-03-05 | 1956-10-16 | James F Crough | Pump and motor hydraulic system |
| US2759130A (en) * | 1952-11-14 | 1956-08-14 | Bell Telephone Labor Inc | Relay circuits |
-
1943
- 1943-07-12 US US494279A patent/US2385779A/en not_active Expired - Lifetime
-
1944
- 1944-07-03 GB GB12662/44A patent/GB580278A/en not_active Expired
Also Published As
| Publication number | Publication date |
|---|---|
| US2385779A (en) | 1945-10-02 |
Similar Documents
| Publication | Publication Date | Title |
|---|---|---|
| GB580278A (en) | Improvements in or relating to electromagnetic circuit controllers | |
| GB787072A (en) | Improvements relating to electro-magnetic switches | |
| GB566617A (en) | Improvements in and relating to air-break electric switches | |
| GB578134A (en) | Improvements in or relating to electro-magnetic switches | |
| GB866368A (en) | Air blast circuit breaker with auxiliary interrupter for parallel resistors | |
| GB482918A (en) | Improvements in electrical contacts for relays | |
| SE7701101L (en) | MAGNETIC PRESSURE GAS SWITCH | |
| GB619439A (en) | Improvements relating to on-load tap changing systems for electric transformers | |
| GB1283186A (en) | Improvements in or relating to electrical contactors | |
| GB562742A (en) | Improvements in and relating to tap changing switches | |
| GB847188A (en) | Improvements in or relating to electrical contactors | |
| GB1056953A (en) | Relay with armature contacts, particulary reed contacts | |
| GB562275A (en) | Electro-magnetic switches | |
| GB512735A (en) | Improvements in and relating to electromagnetically-operated switchgear | |
| GB582817A (en) | Improvements relating to the contacts of electrical switches | |
| GB1046532A (en) | Switchgear for arcless disconnection of a.c. power circuits | |
| GB603981A (en) | Contact device for instrument type relays | |
| GB1031782A (en) | Improvements relating to magnetic switching devices | |
| GB601004A (en) | Improvements relating to magnetically-operated sealed-container switches | |
| GB571569A (en) | Lock-out means for electric contactors and the like electric circuit-breaking devices | |
| GB708293A (en) | Improvements in or relating to synchronous electric switches | |
| GB621770A (en) | Improvements in or relating to electromagnetic relays | |
| GB524816A (en) | Improvements in and relating to electromagnetic switches | |
| GB606840A (en) | Improvements relating to electromagnetic switches | |
| GB601838A (en) | Improvements in and relating to electric switches having arc-rupturing devices |