GB764823A - Improvements in or relating to sound reproducing apparatus - Google Patents

Improvements in or relating to sound reproducing apparatus

Info

Publication number
GB764823A
GB764823A GB30572/53A GB3057253A GB764823A GB 764823 A GB764823 A GB 764823A GB 30572/53 A GB30572/53 A GB 30572/53A GB 3057253 A GB3057253 A GB 3057253A GB 764823 A GB764823 A GB 764823A
Authority
GB
United Kingdom
Prior art keywords
nov
loud
relating
reproducing apparatus
sound reproducing
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
GB30572/53A
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.)
Telefunken AG
Original Assignee
Telefunken AG
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 Telefunken AG filed Critical Telefunken AG
Publication of GB764823A publication Critical patent/GB764823A/en
Expired legal-status Critical Current

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

Abstract

764,823. Loud-speakers. TELEFUNKEN GES., [formerly TELEFUNKEN GES. FUR DRAHTLOSE TELEGRAPHIE]. Nov. 5, 1953 [Nov. 5, 1952; Nov. 6, 1952], No. 30572/53. Class 40 (4). The convex side of a conical loud-speaker faces to the front to improve the high-frequency radiation. A conventional speaker with the casing behind the diaphragm reduced to narrow supporting arms may be mounted back-to-front on a baffle-board (Fig. 3, not shown) forming part of a cabinet or on a sound-impervious flange 5, Fig. 2. In Fig. 4, a reversed cone is supported by a shallow casing 18 and a centring spider 13. In Fig. 5, the centring spider is dispensed with, the moving coil 14 being in the same plane as the peripheral mounting 15. Specification 622,828 is referred to.
GB30572/53A 1952-11-05 1953-11-05 Improvements in or relating to sound reproducing apparatus Expired GB764823A (en)

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
DE764823X 1952-11-05

Publications (1)

Publication Number Publication Date
GB764823A true GB764823A (en) 1957-01-02

Family

ID=6672945

Family Applications (1)

Application Number Title Priority Date Filing Date
GB30572/53A Expired GB764823A (en) 1952-11-05 1953-11-05 Improvements in or relating to sound reproducing apparatus

Country Status (1)

Country Link
GB (1) GB764823A (en)

Cited By (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US4029910A (en) * 1974-05-01 1977-06-14 Allison Acoustics, Inc. Wide dispersion loudspeaker with flexing diaphragm

Cited By (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US4029910A (en) * 1974-05-01 1977-06-14 Allison Acoustics, Inc. Wide dispersion loudspeaker with flexing diaphragm

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