GB325784A - Improvements in loud speaker and like horns - Google Patents
Improvements in loud speaker and like hornsInfo
- Publication number
- GB325784A GB325784A GB24465/28A GB2446528A GB325784A GB 325784 A GB325784 A GB 325784A GB 24465/28 A GB24465/28 A GB 24465/28A GB 2446528 A GB2446528 A GB 2446528A GB 325784 A GB325784 A GB 325784A
- Authority
- GB
- United Kingdom
- Prior art keywords
- horn
- horns
- loud speaker
- horizontal
- lanchester
- 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
- H04R1/00—Details of transducers, loudspeakers or microphones
- H04R1/20—Arrangements for obtaining desired frequency or directional characteristics
- H04R1/32—Arrangements for obtaining desired frequency or directional characteristics for obtaining desired directional characteristic only
- H04R1/34—Arrangements for obtaining desired frequency or directional characteristics for obtaining desired directional characteristic only by using a single transducer with sound reflecting, diffracting, directing or guiding means
- H04R1/345—Arrangements for obtaining desired frequency or directional characteristics for obtaining desired directional characteristic only by using a single transducer with sound reflecting, diffracting, directing or guiding means for loudspeakers
-
- 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)
- Obtaining Desirable Characteristics In Audible-Bandwidth Transducers (AREA)
Abstract
325,784. Lanchester, F. W. Aug. 25, 1928. Sound magnifying and directing appliances.- A horn of gradually expanding cross-section has a vertical mouth-dimension large compared with the horizontal, so as to have a large horizontal angle of emission. Examples are given of dimensions to suit various requirements. To prevent resonance the sides of the horn are constructed of narrow slats, which may be spaced lightly apart to introduce on leakage factor.
Priority Applications (3)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
GB24465/28A GB325784A (en) | 1928-08-25 | 1928-08-25 | Improvements in loud speaker and like horns |
US384705A US1894376A (en) | 1928-08-25 | 1929-08-09 | Loud speaker and like horn |
DEL75913D DE545856C (en) | 1928-08-25 | 1929-08-10 | Loudspeaker horn |
Applications Claiming Priority (1)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
GB24465/28A GB325784A (en) | 1928-08-25 | 1928-08-25 | Improvements in loud speaker and like horns |
Publications (1)
Publication Number | Publication Date |
---|---|
GB325784A true GB325784A (en) | 1930-02-25 |
Family
ID=10212116
Family Applications (1)
Application Number | Title | Priority Date | Filing Date |
---|---|---|---|
GB24465/28A Expired GB325784A (en) | 1928-08-25 | 1928-08-25 | Improvements in loud speaker and like horns |
Country Status (3)
Country | Link |
---|---|
US (1) | US1894376A (en) |
DE (1) | DE545856C (en) |
GB (1) | GB325784A (en) |
-
1928
- 1928-08-25 GB GB24465/28A patent/GB325784A/en not_active Expired
-
1929
- 1929-08-09 US US384705A patent/US1894376A/en not_active Expired - Lifetime
- 1929-08-10 DE DEL75913D patent/DE545856C/en not_active Expired
Also Published As
Publication number | Publication date |
---|---|
DE545856C (en) | 1932-03-05 |
US1894376A (en) | 1933-01-17 |
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