GB298267A - Improvements in or relating to electro-magnets - Google Patents
Improvements in or relating to electro-magnetsInfo
- Publication number
- GB298267A GB298267A GB1805127A GB1805127A GB298267A GB 298267 A GB298267 A GB 298267A GB 1805127 A GB1805127 A GB 1805127A GB 1805127 A GB1805127 A GB 1805127A GB 298267 A GB298267 A GB 298267A
- Authority
- GB
- United Kingdom
- Prior art keywords
- pole
- piece
- pieces
- shoulder
- permanent magnet
- 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
- H01F7/06—Electromagnets; Actuators including electromagnets
- H01F7/20—Electromagnets; Actuators including electromagnets without armatures
Landscapes
- Physics & Mathematics (AREA)
- Electromagnetism (AREA)
- Engineering & Computer Science (AREA)
- Power Engineering (AREA)
- Magnetic Treatment Devices (AREA)
Abstract
298,267. Rance, H. E. July 7, 1927. Electromagnets.-In an electromagnet of the type comprising two concentric pole-pieces having an exciting winding between the pole-pieces and another surrounding the outer pole-piece, the polepieces are mounted on a ring - shaped permanent magnet. Fig. 1 shows such an arrangement applied to a telephone receiver. The inner pole-piece a and the outer b are mounted on connecting-pieces a<1>, b<1> secured to the ring-shaped permanent magnet e. The pole-pieces may be further connected magnetically at their base, for example by stamping the outer pole-piece out of sheet iron and bending the end over to form a disc engaging with the base of the inner pole-piece. The outer pole-piece mav approach the inner pole-piece at its upper end, either by being given a conical form, or being formed with a shoulder as shown in Fig. 6, the outer winding being arranged on the shoulder as shown.
Priority Applications (1)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
GB1805127A GB298267A (en) | 1927-07-07 | 1927-07-07 | Improvements in or relating to electro-magnets |
Applications Claiming Priority (1)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
GB1805127A GB298267A (en) | 1927-07-07 | 1927-07-07 | Improvements in or relating to electro-magnets |
Publications (1)
Publication Number | Publication Date |
---|---|
GB298267A true GB298267A (en) | 1928-10-08 |
Family
ID=10105779
Family Applications (1)
Application Number | Title | Priority Date | Filing Date |
---|---|---|---|
GB1805127A Expired GB298267A (en) | 1927-07-07 | 1927-07-07 | Improvements in or relating to electro-magnets |
Country Status (1)
Country | Link |
---|---|
GB (1) | GB298267A (en) |
-
1927
- 1927-07-07 GB GB1805127A patent/GB298267A/en not_active Expired
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