GB389063A - Improvements in or relating to electromagnetic devices - Google Patents
Improvements in or relating to electromagnetic devicesInfo
- Publication number
- GB389063A GB389063A GB15879/31A GB1587931A GB389063A GB 389063 A GB389063 A GB 389063A GB 15879/31 A GB15879/31 A GB 15879/31A GB 1587931 A GB1587931 A GB 1587931A GB 389063 A GB389063 A GB 389063A
- Authority
- GB
- United Kingdom
- Prior art keywords
- pole
- pieces
- magnet
- relating
- magnetos
- 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
- H04—ELECTRIC COMMUNICATION TECHNIQUE
- H04R—LOUDSPEAKERS, MICROPHONES, GRAMOPHONE PICK-UPS OR LIKE ACOUSTIC ELECTROMECHANICAL TRANSDUCERS; DEAF-AID SETS; PUBLIC ADDRESS SYSTEMS
- H04R11/00—Transducers of moving-armature or moving-core type
Landscapes
- Physics & Mathematics (AREA)
- Electromagnetism (AREA)
- Engineering & Computer Science (AREA)
- Acoustics & Sound (AREA)
- Signal Processing (AREA)
- Audible-Bandwidth Dynamoelectric Transducers Other Than Pickups (AREA)
Abstract
389,063. Magnetos ; magnets ; loudspeakers. KRING, O. O., Saffle, Sweden. May 30, 1931, No. 15879. Convention date, May 31, 1930. Void [Published under Sect. 91 of the Acts]. [Class 35.] The pole-pieces 3, Fig. 1, are attached to the magnet bars 1 by " pressure perpendicular to the length of the magnet bars " and/or by " end-on pressure." The magnet bars are also magnetically connected by laminations 2 similarly pressed into contact. In the loud-speaker shown in Fig. 4, an armature 12 is carried by a pole-piece 8 and oscillates between pole-pieces 9, 10, the three pole-pieces being pressed into contact with the magnet 13. The invention is also applicable to magnetos, (Fig. 3, not shown).
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| SE389063X | 1930-05-31 |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| GB389063A true GB389063A (en) | 1933-03-09 |
Family
ID=20309280
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| GB15879/31A Expired GB389063A (en) | 1930-05-31 | 1931-05-30 | Improvements in or relating to electromagnetic devices |
Country Status (1)
| Country | Link |
|---|---|
| GB (1) | GB389063A (en) |
-
1931
- 1931-05-30 GB GB15879/31A patent/GB389063A/en not_active Expired
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