GB656988A - Improvements in and relating to variable reluctance electro-magnetic induction apparatus - Google Patents
Improvements in and relating to variable reluctance electro-magnetic induction apparatusInfo
- Publication number
- GB656988A GB656988A GB1896/49A GB189649A GB656988A GB 656988 A GB656988 A GB 656988A GB 1896/49 A GB1896/49 A GB 1896/49A GB 189649 A GB189649 A GB 189649A GB 656988 A GB656988 A GB 656988A
- Authority
- GB
- United Kingdom
- Prior art keywords
- joints
- core
- magnetic
- reluctance
- halves
- 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
- 230000005674 electromagnetic induction Effects 0.000 title abstract 2
- 210000002105 tongue Anatomy 0.000 abstract 4
- 238000003475 lamination Methods 0.000 abstract 2
- 239000000696 magnetic material Substances 0.000 abstract 1
Classifications
-
- 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
- H01F29/08—Variable transformers or inductances not covered by group H01F21/00 with core, coil, winding, or shield movable to offset variation of voltage or phase shift, e.g. induction regulators
- H01F29/10—Variable transformers or inductances not covered by group H01F21/00 with core, coil, winding, or shield movable to offset variation of voltage or phase shift, e.g. induction regulators having movable part of magnetic circuit
Landscapes
- Engineering & Computer Science (AREA)
- Power Engineering (AREA)
- Coils Or Transformers For Communication (AREA)
- Manufacturing Cores, Coils, And Magnets (AREA)
Abstract
656,988. Transformers. BRITISH THOMSON-HOUSTON CO., Ltd. Jan. 24, 1949, No. 1896. Convention date, Jan. 23, 1948. [Class 38 (ii)] An adjustable reluctance core for electromagnetic induction apparatus comprises two laminated parts having interfitting multiple tongue and groove joints with non-magnetic wrappers around alternate groups of laminations in each part providing non-magnetic gaps between the sides of the interfitting tongues and grooves in the joints and adjustable means for controlling the degree of closure of the joints. Each half 2, 3 of a magnetic core 1 has alternate groups of L-shaped laminations wrapped in non-magnetic material and the groups oriented to form tongue and groove ends in each half. The halves of the core together with the requisite clamping pieces 9, 10, 11 are then held together by hollow rivets 8, the clamping pieces being crimped to allow assembly and provided with elongated holes 17 to allow the area of contact of the tongues and grooves in the joints to be varied to adjust the core reluctance. The two halves are finally secured together by means of bolts 18, 19. The clamping piece 10 is provided with extensions having holes for mounting the apparatus.
Applications Claiming Priority (1)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
US4026A US2460145A (en) | 1948-01-23 | 1948-01-23 | Variable reluctance core |
Publications (1)
Publication Number | Publication Date |
---|---|
GB656988A true GB656988A (en) | 1951-09-05 |
Family
ID=21708767
Family Applications (1)
Application Number | Title | Priority Date | Filing Date |
---|---|---|---|
GB1896/49A Expired GB656988A (en) | 1948-01-23 | 1949-01-24 | Improvements in and relating to variable reluctance electro-magnetic induction apparatus |
Country Status (2)
Country | Link |
---|---|
US (1) | US2460145A (en) |
GB (1) | GB656988A (en) |
Families Citing this family (7)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
US2554782A (en) * | 1948-04-27 | 1951-05-29 | Ballastran Corp | Transformer and reactor for fluorescent lighting units |
US2835876A (en) * | 1950-08-18 | 1958-05-20 | Hammond Organ Co | Adjustable inductance |
US2883590A (en) * | 1953-09-02 | 1959-04-21 | Westinghouse Electric Corp | Electromagnetic structures |
US4032874A (en) * | 1975-08-26 | 1977-06-28 | General Electric Company | Reactor core |
US4172245A (en) * | 1977-09-06 | 1979-10-23 | Rte Corporation | Adjustable transformer |
US6118366A (en) * | 1997-12-09 | 2000-09-12 | Siemens Automotive Corporation | Electromagnetic actuator with split housing assembly |
CN118016411A (en) * | 2024-03-08 | 2024-05-10 | 贵港市嘉龙海杰电子科技有限公司 | High-voltage-resistant sheet transformer |
Family Cites Families (5)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
FR709923A (en) * | 1931-01-24 | 1931-08-14 | Transformer | |
BE414228A (en) * | 1935-03-10 | |||
US2080177A (en) * | 1935-04-26 | 1937-05-11 | Union Switch & Signal Co | Transformer |
US2141554A (en) * | 1935-07-30 | 1938-12-27 | Gen Railway Signal Co | Adjustable magnetic core structure |
US2180759A (en) * | 1937-09-23 | 1939-11-21 | Richard F Kneisley | Stationary induction apparatus |
-
1948
- 1948-01-23 US US4026A patent/US2460145A/en not_active Expired - Lifetime
-
1949
- 1949-01-24 GB GB1896/49A patent/GB656988A/en not_active Expired
Also Published As
Publication number | Publication date |
---|---|
US2460145A (en) | 1949-01-25 |
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