GB384189A - Improvements in and relating to laminated cores for electrical apparatus - Google Patents
Improvements in and relating to laminated cores for electrical apparatusInfo
- Publication number
- GB384189A GB384189A GB14294/32A GB1429432A GB384189A GB 384189 A GB384189 A GB 384189A GB 14294/32 A GB14294/32 A GB 14294/32A GB 1429432 A GB1429432 A GB 1429432A GB 384189 A GB384189 A GB 384189A
- Authority
- GB
- United Kingdom
- Prior art keywords
- laminations
- cores
- relating
- dynamo
- transformers
- 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
- H01F27/24—Magnetic cores
- H01F27/245—Magnetic cores made from sheets, e.g. grain-oriented
Landscapes
- Engineering & Computer Science (AREA)
- Power Engineering (AREA)
- Soft Magnetic Materials (AREA)
Abstract
384,189. Insulation for dynamo-electric machines ; transformers. BRITISH THOMSONHOUSTON CO., Ltd., Crown House, Aldwych, London.-(Assignees of Pfalzgraff, R. M.; 13, Franklin Street, Lynn, Massachusetts, U.S.A.) May 19, 1932, No. 14294. Convention date, May 20, 1931. [Classes 35 and 38 (ii).] Laminations of cores of dynamo-electric machines, transformers, &c. are insulated by a coating of iron phosphate formed by immersing the laminations in a solution containing phosphoric acid and iron oxide. The oxide may be furnished by mill scale on the surface of the laminations. It is stated that conductor bars cast in the slots are insulated from cores thus formed.
Applications Claiming Priority (1)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
US384189XA | 1931-05-20 | 1931-05-20 |
Publications (1)
Publication Number | Publication Date |
---|---|
GB384189A true GB384189A (en) | 1932-12-01 |
Family
ID=21899834
Family Applications (1)
Application Number | Title | Priority Date | Filing Date |
---|---|---|---|
GB14294/32A Expired GB384189A (en) | 1931-05-20 | 1932-05-19 | Improvements in and relating to laminated cores for electrical apparatus |
Country Status (1)
Country | Link |
---|---|
GB (1) | GB384189A (en) |
Cited By (3)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
US4025379A (en) | 1973-05-03 | 1977-05-24 | Whetstone Clayton N | Method of making laminated magnetic material |
GB2208974A (en) * | 1987-08-21 | 1989-04-19 | Johnson Electric Ind Mfg | Electric motor armature |
DE29807951U1 (en) | 1998-05-04 | 1998-07-23 | Siemens AG, 80333 München | AC magnet with short-circuit ring |
-
1932
- 1932-05-19 GB GB14294/32A patent/GB384189A/en not_active Expired
Cited By (3)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
US4025379A (en) | 1973-05-03 | 1977-05-24 | Whetstone Clayton N | Method of making laminated magnetic material |
GB2208974A (en) * | 1987-08-21 | 1989-04-19 | Johnson Electric Ind Mfg | Electric motor armature |
DE29807951U1 (en) | 1998-05-04 | 1998-07-23 | Siemens AG, 80333 München | AC magnet with short-circuit ring |
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