GB991290A - Combined transformer and electromagnetic switch - Google Patents
Combined transformer and electromagnetic switchInfo
- Publication number
- GB991290A GB991290A GB27252/61A GB2725261A GB991290A GB 991290 A GB991290 A GB 991290A GB 27252/61 A GB27252/61 A GB 27252/61A GB 2725261 A GB2725261 A GB 2725261A GB 991290 A GB991290 A GB 991290A
- Authority
- GB
- United Kingdom
- Prior art keywords
- electromagnetic switch
- combined transformer
- contact devices
- july
- core
- 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
- H01F—MAGNETS; INDUCTANCES; TRANSFORMERS; SELECTION OF MATERIALS FOR THEIR MAGNETIC PROPERTIES
- H01F27/00—Details of transformers or inductances, in general
- H01F27/40—Structural association with built-in electric component, e.g. fuse
-
- H—ELECTRICITY
- H01—ELECTRIC ELEMENTS
- H01H—ELECTRIC SWITCHES; RELAYS; SELECTORS; EMERGENCY PROTECTIVE DEVICES
- H01H51/00—Electromagnetic relays
- H01H51/28—Relays having both armature and contacts within a sealed casing outside which the operating coil is located, e.g. contact carried by a magnetic leaf spring or reed
- H01H51/281—Mounting of the relay; Encapsulating; Details of connections
-
- H—ELECTRICITY
- H01—ELECTRIC ELEMENTS
- H01F—MAGNETS; INDUCTANCES; TRANSFORMERS; SELECTION OF MATERIALS FOR THEIR MAGNETIC PROPERTIES
- H01F29/00—Variable transformers or inductances not covered by group H01F21/00
- H01F29/14—Variable transformers or inductances not covered by group H01F21/00 with variable magnetic bias
- H01F2029/143—Variable transformers or inductances not covered by group H01F21/00 with variable magnetic bias with control winding for generating magnetic bias
Landscapes
- Engineering & Computer Science (AREA)
- Power Engineering (AREA)
- Physics & Mathematics (AREA)
- Electromagnetism (AREA)
- Constitution Of High-Frequency Heating (AREA)
- Coils Of Transformers For General Uses (AREA)
Abstract
991,290. Electromagnetic switches. PYE Ltd. July 23, 1962 [July 27, 1961], No. 27252/61. Heading H2B. Sealed magnetic contact devices 5 are mounted across an air cap in the core 4a of a transformer. Additional windings to influence the current setting of the contact devices may surround the core or the contact devices (Fig. 3 not shown).
Priority Applications (2)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
GB27252/61A GB991290A (en) | 1961-07-27 | 1961-07-27 | Combined transformer and electromagnetic switch |
US212557A US3241004A (en) | 1961-07-27 | 1962-07-26 | Electro-magnetically operated electric switches |
Applications Claiming Priority (1)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
GB27252/61A GB991290A (en) | 1961-07-27 | 1961-07-27 | Combined transformer and electromagnetic switch |
Publications (1)
Publication Number | Publication Date |
---|---|
GB991290A true GB991290A (en) | 1965-05-05 |
Family
ID=10256568
Family Applications (1)
Application Number | Title | Priority Date | Filing Date |
---|---|---|---|
GB27252/61A Expired GB991290A (en) | 1961-07-27 | 1961-07-27 | Combined transformer and electromagnetic switch |
Country Status (2)
Country | Link |
---|---|
US (1) | US3241004A (en) |
GB (1) | GB991290A (en) |
Family Cites Families (8)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
US1866147A (en) * | 1931-12-26 | 1932-07-05 | Union Switch & Signal Co | Transformer relay |
US2187115A (en) * | 1939-03-02 | 1940-01-16 | Bell Telephone Labor Inc | Switching device |
US2261323A (en) * | 1940-07-26 | 1941-11-04 | Union Switch & Signal Co | Means for adjusting the impedance of electromagnetic devices |
US2342781A (en) * | 1940-10-16 | 1944-02-29 | Bell Telephone Labor Inc | Combined mercury interrupter and transformer |
US2618717A (en) * | 1945-08-01 | 1952-11-18 | Hakanssons Ind Ab | Oscillating contact device for periodical variation of electric current conditions |
US2653280A (en) * | 1949-06-17 | 1953-09-22 | Ballastran Corp | Stationary induction apparatus |
BE567480A (en) * | 1957-04-09 | |||
US2938982A (en) * | 1958-12-31 | 1960-05-31 | Bell Telephone Labor Inc | Relay for switching connections between three conductors meeting at a common point |
-
1961
- 1961-07-27 GB GB27252/61A patent/GB991290A/en not_active Expired
-
1962
- 1962-07-26 US US212557A patent/US3241004A/en not_active Expired - Lifetime
Also Published As
Publication number | Publication date |
---|---|
US3241004A (en) | 1966-03-15 |
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