GB255149A - Improvements in or relating to loud speaking reproducer - Google Patents
Improvements in or relating to loud speaking reproducerInfo
- Publication number
- GB255149A GB255149A GB978125A GB978125A GB255149A GB 255149 A GB255149 A GB 255149A GB 978125 A GB978125 A GB 978125A GB 978125 A GB978125 A GB 978125A GB 255149 A GB255149 A GB 255149A
- Authority
- GB
- United Kingdom
- Prior art keywords
- reproducer
- relating
- pole
- pieces
- secured
- 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
- H04R11/06—Telephone receivers
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
255,149. Clarke, W. H., and Pocock, G. C,. H. April 15, 1925. Magnetic instruments. -A telephone receiver, applicable for use with either the hom or large diaphragm types of loud speaker has the end faces of its inclined polepieces P', P<2> arranged parallel to two faces of a triangular shaped armature R secured to the centre of the diaphragm D. The pole-pieces are secured to a magnet or magnets M mounted on a plate P adjustable by a screw S for regulating the distance between the pole-pieces and the armature.
Priority Applications (1)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
GB978125A GB255149A (en) | 1925-04-15 | 1925-04-15 | Improvements in or relating to loud speaking reproducer |
Applications Claiming Priority (1)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
GB978125A GB255149A (en) | 1925-04-15 | 1925-04-15 | Improvements in or relating to loud speaking reproducer |
Publications (1)
Publication Number | Publication Date |
---|---|
GB255149A true GB255149A (en) | 1926-07-15 |
Family
ID=9878632
Family Applications (1)
Application Number | Title | Priority Date | Filing Date |
---|---|---|---|
GB978125A Expired GB255149A (en) | 1925-04-15 | 1925-04-15 | Improvements in or relating to loud speaking reproducer |
Country Status (1)
Country | Link |
---|---|
GB (1) | GB255149A (en) |
Cited By (1)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
US2548062A (en) * | 1948-03-22 | 1951-04-10 | Scott N Reger | Bone conducting receiver with electromagnetic vibrator |
-
1925
- 1925-04-15 GB GB978125A patent/GB255149A/en not_active Expired
Cited By (1)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
US2548062A (en) * | 1948-03-22 | 1951-04-10 | Scott N Reger | Bone conducting receiver with electromagnetic vibrator |
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