GB857076A - Improvements in and relating to loudspeakers - Google Patents
Improvements in and relating to loudspeakersInfo
- Publication number
- GB857076A GB857076A GB1144757A GB1144757A GB857076A GB 857076 A GB857076 A GB 857076A GB 1144757 A GB1144757 A GB 1144757A GB 1144757 A GB1144757 A GB 1144757A GB 857076 A GB857076 A GB 857076A
- Authority
- GB
- United Kingdom
- Prior art keywords
- speaker
- sound
- loud
- speakers
- april
- 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
- 229920001821 foam rubber Polymers 0.000 abstract 1
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
- H04R1/26—Spatial arrangements of separate transducers responsive to two or more frequency ranges
Landscapes
- Health & Medical Sciences (AREA)
- Otolaryngology (AREA)
- Physics & Mathematics (AREA)
- Engineering & Computer Science (AREA)
- Acoustics & Sound (AREA)
- Signal Processing (AREA)
- Obtaining Desirable Characteristics In Audible-Bandwidth Transducers (AREA)
Abstract
857,076. Sound-directive appliances. WATTS Ltd., C. E. April 1, 1958 [April 8, 1957], No. 11447/57. Class 13. [Also in Group XXXIX] An improved distribution of sound is achieved by arranging three loud-speakers 22, 23, 24 in axial alignment. These loud-speakers and a bass speaker 19 handle different frequency bands. The speaker 23 faces downwards, the others upwards. A small baffle 27 is mounted above the bass speaker 19 which is loaded by a tapering chamber 33 terminating in an aperture 34. The speaker 22 is likewise loaded by a chamber 35 with an aperture 37. The apertures 34, 37 may be covered with foam rubber. A cover 29 has honeycomb walls to assist in spreading the sound. Specification 769,204 is referred to.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| GB1144757A GB857076A (en) | 1957-04-08 | 1957-04-08 | Improvements in and relating to loudspeakers |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| GB1144757A GB857076A (en) | 1957-04-08 | 1957-04-08 | Improvements in and relating to loudspeakers |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| GB857076A true GB857076A (en) | 1960-12-29 |
Family
ID=9986438
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| GB1144757A Expired GB857076A (en) | 1957-04-08 | 1957-04-08 | Improvements in and relating to loudspeakers |
Country Status (1)
| Country | Link |
|---|---|
| GB (1) | GB857076A (en) |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| FR2402375A1 (en) * | 1977-09-06 | 1979-03-30 | Selmin Sas | METHOD AND DEVICES FOR OMNIDIRECTIONAL ACOUSTIC WAVES RADIATION |
-
1957
- 1957-04-08 GB GB1144757A patent/GB857076A/en not_active Expired
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| FR2402375A1 (en) * | 1977-09-06 | 1979-03-30 | Selmin Sas | METHOD AND DEVICES FOR OMNIDIRECTIONAL ACOUSTIC WAVES RADIATION |
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