GB497548A - Improvements in and relating to permanent magnets - Google Patents
Improvements in and relating to permanent magnetsInfo
- Publication number
- GB497548A GB497548A GB13468/38A GB1346838A GB497548A GB 497548 A GB497548 A GB 497548A GB 13468/38 A GB13468/38 A GB 13468/38A GB 1346838 A GB1346838 A GB 1346838A GB 497548 A GB497548 A GB 497548A
- Authority
- GB
- United Kingdom
- Prior art keywords
- screw
- magnet
- yoke
- temperature
- relating
- 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
- H01F7/00—Magnets
- H01F7/02—Permanent magnets [PM]
- H01F7/0205—Magnetic circuits with PM in general
Landscapes
- Physics & Mathematics (AREA)
- Electromagnetism (AREA)
- Engineering & Computer Science (AREA)
- Power Engineering (AREA)
- Force Measurement Appropriate To Specific Purposes (AREA)
Abstract
497,548. Magnets. BRITISH THOMSONHOUSTON CO., Ltd. May 5, 1938, No. 13468. Convention date, May 5, 1937. [Class 35] [Also in Group XXII] A permanent magnet assembly, more especially a meter brake, comprises a bar magnet 1 of high coercive force, and an iron yoke 5 held together by means of metal die-cast under high pressure into co-operating cavities in the magnet and yoke, a piece of ferrous metal having proj ecting edges or recesses, e.g. a screw 7, being firmly secured to the yoke at one end and anchored at its other end in a filled cavity 2 in the magnet. The screw 7 may be wholly or partly of material of permeability varying with temperature to compensate for temperature errors in the instrument or a sleeve of such material may surround the screw. An adjustable ferromagnetic part such as a screw 8 may be provided to vary the strength of the magnet. The diecast material is introduced through a hole 6 in the yoke through which also temperature compensating devices may be introduced.
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| DE497548X | 1937-05-05 |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| GB497548A true GB497548A (en) | 1938-12-21 |
Family
ID=6545194
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| GB13468/38A Expired GB497548A (en) | 1937-05-05 | 1938-05-05 | Improvements in and relating to permanent magnets |
Country Status (1)
| Country | Link |
|---|---|
| GB (1) | GB497548A (en) |
-
1938
- 1938-05-05 GB GB13468/38A patent/GB497548A/en not_active Expired
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