GB342768A - Improvements in or relating to acoustic horns - Google Patents

Improvements in or relating to acoustic horns

Info

Publication number
GB342768A
GB342768A GB33997/29A GB3399729A GB342768A GB 342768 A GB342768 A GB 342768A GB 33997/29 A GB33997/29 A GB 33997/29A GB 3399729 A GB3399729 A GB 3399729A GB 342768 A GB342768 A GB 342768A
Authority
GB
United Kingdom
Prior art keywords
throat
parts
section
nov
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
Application number
GB33997/29A
Other languages
English (en)
Current Assignee (The listed assignees may be inaccurate. Google has not performed a legal analysis and makes no representation or warranty as to the accuracy of the list.)
Electrical Research Products Inc
Original Assignee
Electrical Research Products Inc
Priority date (The priority date 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 date listed.)
Filing date
Publication date
Application filed by Electrical Research Products Inc filed Critical Electrical Research Products Inc
Publication of GB342768A publication Critical patent/GB342768A/en
Expired legal-status Critical Current

Links

Classifications

    • G—PHYSICS
    • G10—MUSICAL INSTRUMENTS; ACOUSTICS
    • G10K—SOUND-PRODUCING DEVICES; METHODS OR DEVICES FOR PROTECTING AGAINST, OR FOR DAMPING, NOISE OR OTHER ACOUSTIC WAVES IN GENERAL; ACOUSTICS NOT OTHERWISE PROVIDED FOR
    • G10K13/00—Cones, diaphragms, or the like, for emitting or receiving sound in general
    • 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
    • H04R1/02—Casings; Cabinets ; Supports therefor; Mountings therein
    • 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
GB33997/29A 1928-11-24 1929-11-07 Improvements in or relating to acoustic horns Expired GB342768A (en)

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
US342768XA 1928-11-24 1928-11-24

Publications (1)

Publication Number Publication Date
GB342768A true GB342768A (en) 1931-02-09

Family

ID=21875384

Family Applications (1)

Application Number Title Priority Date Filing Date
GB33997/29A Expired GB342768A (en) 1928-11-24 1929-11-07 Improvements in or relating to acoustic horns

Country Status (2)

Country Link
FR (1) FR684012A (fr)
GB (1) GB342768A (fr)

Families Citing this family (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
DE940596C (de) * 1949-10-30 1956-03-22 Siemens Ag Holztrichter fuer Lautsprecher, insbesondere Tieftontrichter

Also Published As

Publication number Publication date
FR684012A (fr) 1930-06-20

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