GB297151A - Improvements in or relating to acoustic horns - Google Patents
Improvements in or relating to acoustic hornsInfo
- Publication number
- GB297151A GB297151A GB1620427A GB1620427A GB297151A GB 297151 A GB297151 A GB 297151A GB 1620427 A GB1620427 A GB 1620427A GB 1620427 A GB1620427 A GB 1620427A GB 297151 A GB297151 A GB 297151A
- Authority
- GB
- United Kingdom
- Prior art keywords
- bell
- relating
- partition
- acoustic horns
- horns
- 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
- 238000005192 partition Methods 0.000 abstract 2
Classifications
-
- H—ELECTRICITY
- H04—ELECTRIC COMMUNICATION TECHNIQUE
- H04R—LOUDSPEAKERS, MICROPHONES, GRAMOPHONE PICK-UPS OR LIKE ACOUSTIC ELECTROMECHANICAL TRANSDUCERS; DEAF-AID SETS; PUBLIC ADDRESS SYSTEMS
- H04R1/00—Details of transducers, loudspeakers or microphones
- H04R1/20—Arrangements for obtaining desired frequency or directional characteristics
- H04R1/22—Arrangements for obtaining desired frequency or directional characteristics for obtaining desired frequency characteristic only
- H04R1/30—Combinations of transducers with horns, e.g. with mechanical matching means, i.e. front-loaded horns
Landscapes
- Health & Medical Sciences (AREA)
- Otolaryngology (AREA)
- Physics & Mathematics (AREA)
- Engineering & Computer Science (AREA)
- Acoustics & Sound (AREA)
- Signal Processing (AREA)
- Mobile Radio Communication Systems (AREA)
Abstract
297,151. Beatty, W. E., (Bell Telephone Laboratories, Inc.). June 17, 1927. Cases with internal horns.-In a cabinet gramophone having a horn of the type comprising a bell mouth divided into sections 28, 29 by a central horizontal partition 27 which itself contains sound passages leading to the back of the bell, the upper part of the partition may be recessed to accommodate the turntable 59 and motor. The upper part of the upper bell-section 28 is formed by the lid 15 and two hinged side flaps 17, 18.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| GB1620427A GB297151A (en) | 1927-06-17 | 1927-06-17 | Improvements in or relating to acoustic horns |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| GB1620427A GB297151A (en) | 1927-06-17 | 1927-06-17 | Improvements in or relating to acoustic horns |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| GB297151A true GB297151A (en) | 1928-09-17 |
Family
ID=10073038
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| GB1620427A Expired GB297151A (en) | 1927-06-17 | 1927-06-17 | Improvements in or relating to acoustic horns |
Country Status (1)
| Country | Link |
|---|---|
| GB (1) | GB297151A (en) |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| EP2001261A1 (en) * | 2007-06-07 | 2008-12-10 | Turbosound Limited | Loudspeaker horn |
-
1927
- 1927-06-17 GB GB1620427A patent/GB297151A/en not_active Expired
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| EP2001261A1 (en) * | 2007-06-07 | 2008-12-10 | Turbosound Limited | Loudspeaker horn |
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