GB435670A - Improvements in and relating to electro-dynamic sound reproducing devices - Google Patents

Improvements in and relating to electro-dynamic sound reproducing devices

Info

Publication number
GB435670A
GB435670A GB37013/34A GB3701334A GB435670A GB 435670 A GB435670 A GB 435670A GB 37013/34 A GB37013/34 A GB 37013/34A GB 3701334 A GB3701334 A GB 3701334A GB 435670 A GB435670 A GB 435670A
Authority
GB
United Kingdom
Prior art keywords
electro
relating
sound reproducing
reproducing devices
dynamic sound
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
GB37013/34A
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.)
Individual
Original Assignee
Individual
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 Individual filed Critical Individual
Publication of GB435670A publication Critical patent/GB435670A/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
    • H04R7/00—Diaphragms for electromechanical transducers; Cones
    • H04R7/02—Diaphragms for electromechanical transducers; Cones characterised by the construction
    • H04R7/12—Non-planar diaphragms or cones

Landscapes

  • Engineering & Computer Science (AREA)
  • Multimedia (AREA)
  • Physics & Mathematics (AREA)
  • Acoustics & Sound (AREA)
  • Signal Processing (AREA)
  • Audible-Bandwidth Dynamoelectric Transducers Other Than Pickups (AREA)

Abstract

435,670. Loud-speakers; diaphragms. HUGUENARD, E. A., 19, Rue Dupont de L'Eure, Paris. Dec. 24, 1934, No. 37013. Convention date, Sept. 4. [Class 40 (iv)] The moving coil 2 of a loudspeaker is connected to the smaller end of the reversed conical diaphragm 3 by a cylindrical or slightly tapered tube 6<a>. The diaphragm may be reinforced by an inner cone 8 and both cones may be perforated as at 9, 10. The tube 6<a> may be open at the outer end 7 or it may closed by a conical wall.
GB37013/34A 1934-09-04 1934-12-24 Improvements in and relating to electro-dynamic sound reproducing devices Expired GB435670A (en)

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
FR791123T 1934-09-04

Publications (1)

Publication Number Publication Date
GB435670A true GB435670A (en) 1935-09-25

Family

ID=9225016

Family Applications (1)

Application Number Title Priority Date Filing Date
GB37013/34A Expired GB435670A (en) 1934-09-04 1934-12-24 Improvements in and relating to electro-dynamic sound reproducing devices

Country Status (3)

Country Link
BE (1) BE410896A (en)
FR (1) FR791123A (en)
GB (1) GB435670A (en)

Cited By (6)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US2512323A (en) * 1946-09-09 1950-06-20 Radio Frequency Lab Inc Reentrant diaphragm with central closure member
US2560379A (en) * 1948-03-25 1951-07-10 Rca Corp Loud-speaker with flexible diaphragm mounting
US2582130A (en) * 1948-10-20 1952-01-08 Hawley Products Co Acoustic diaphragm
DE837115C (en) * 1950-05-20 1952-04-21 Telefunken Gmbh Dynamic speaker system
DE1028618B (en) * 1952-11-05 1958-04-24 Telefunken Gmbh Tweeter with conical cone
DE970326C (en) * 1948-10-02 1958-09-11 Telefunken Gmbh Arrangement for the central broadband sound supply of an airspace

Families Citing this family (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
FR2428952A3 (en) * 1978-04-03 1980-01-11 Audax Hi=Fi loudspeaker having convex diaphragm - rigidly secured to loudspeaker coil former and flexibly secured to outer annular pole piece

Cited By (6)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US2512323A (en) * 1946-09-09 1950-06-20 Radio Frequency Lab Inc Reentrant diaphragm with central closure member
US2560379A (en) * 1948-03-25 1951-07-10 Rca Corp Loud-speaker with flexible diaphragm mounting
DE970326C (en) * 1948-10-02 1958-09-11 Telefunken Gmbh Arrangement for the central broadband sound supply of an airspace
US2582130A (en) * 1948-10-20 1952-01-08 Hawley Products Co Acoustic diaphragm
DE837115C (en) * 1950-05-20 1952-04-21 Telefunken Gmbh Dynamic speaker system
DE1028618B (en) * 1952-11-05 1958-04-24 Telefunken Gmbh Tweeter with conical cone

Also Published As

Publication number Publication date
FR791123A (en) 1935-12-04
BE410896A (en)

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