GB440041A - Improvements in or relating to loud-speakers and the like - Google Patents

Improvements in or relating to loud-speakers and the like

Info

Publication number
GB440041A
GB440041A GB18184/34A GB1818434A GB440041A GB 440041 A GB440041 A GB 440041A GB 18184/34 A GB18184/34 A GB 18184/34A GB 1818434 A GB1818434 A GB 1818434A GB 440041 A GB440041 A GB 440041A
Authority
GB
United Kingdom
Prior art keywords
cone
ring
loud
speakers
magnet
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
GB18184/34A
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
Priority to GB18184/34A priority Critical patent/GB440041A/en
Priority to US748474A priority patent/US2071828A/en
Priority to FR791384D priority patent/FR791384A/en
Publication of GB440041A publication Critical patent/GB440041A/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
    • H04R7/122—Non-planar diaphragms or cones comprising a plurality of sections or layers
    • 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
    • H04R7/127—Non-planar diaphragms or cones dome-shaped

Landscapes

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

Abstract

440,041. Loud-speakers. GLEN, R. R., Villa Bergeronnettes, Anglet, Basses-PyrÚnÚes, France. June 19, 1934, No. 18184. [Class 40 (iv)] A loud-speaker comprises a cone 13 driven by a moving coil 11 and a larger cone 18 arranged closely adjacent to the cone 13 and adapted to be driven solely by the vibration and/or compression of the air in the narrow space between the two cones, this space being freely open to the surrounding air. The cone 18, which preferably has a diameter of about three times that of cone 13, is mounted on a ring 19 carried by a spider 20 having a ring 21 engaging the magnet 10 whilst the cone 13 is mounted on a ring 15 connected by arms 16 to a ring 7 also secured to the magnet.
GB18184/34A 1934-06-19 1934-06-19 Improvements in or relating to loud-speakers and the like Expired GB440041A (en)

Priority Applications (3)

Application Number Priority Date Filing Date Title
GB18184/34A GB440041A (en) 1934-06-19 1934-06-19 Improvements in or relating to loud-speakers and the like
US748474A US2071828A (en) 1934-06-19 1934-10-16 Loudspeaker, sound reproducing instrument, and the like
FR791384D FR791384A (en) 1934-06-19 1935-06-17 Improvements to loudspeakers and similar devices

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
GB18184/34A GB440041A (en) 1934-06-19 1934-06-19 Improvements in or relating to loud-speakers and the like

Publications (1)

Publication Number Publication Date
GB440041A true GB440041A (en) 1935-12-19

Family

ID=10108101

Family Applications (1)

Application Number Title Priority Date Filing Date
GB18184/34A Expired GB440041A (en) 1934-06-19 1934-06-19 Improvements in or relating to loud-speakers and the like

Country Status (3)

Country Link
US (1) US2071828A (en)
FR (1) FR791384A (en)
GB (1) GB440041A (en)

Cited By (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
EP0525400A2 (en) * 1991-07-31 1993-02-03 Nokia (Deutschland) GmbH Diaphragm for cone loudspeaker

Families Citing this family (7)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US2840178A (en) * 1954-01-20 1958-06-24 Tesla Np Device for the reproduction of sound
JPS538594A (en) * 1976-07-13 1978-01-26 Seiko Instr & Electronics Ltd Electronic buzzer
DE3147145C2 (en) * 1981-11-27 1983-10-13 Siemens AG, 1000 Berlin und 8000 München Method for generating a speed-proportional voltage and circuit arrangement for carrying out the method
US6496590B2 (en) 2000-12-08 2002-12-17 Jl Audio, Inc. Loudspeaker with improved diaphragm
US6963652B1 (en) 2003-04-18 2005-11-08 James M Colombo Low frequency generator
WO2008085177A1 (en) * 2007-01-12 2008-07-17 Samson Technologies Corporation Speaker motor and speaker
JP1602130S (en) * 2017-08-08 2018-04-16

Cited By (3)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
EP0525400A2 (en) * 1991-07-31 1993-02-03 Nokia (Deutschland) GmbH Diaphragm for cone loudspeaker
EP0525400A3 (en) * 1991-07-31 1994-01-05 Nokia Deutschland Gmbh
US5323469A (en) * 1991-07-31 1994-06-21 Nokia (Deutschland) Gmbh Conical loudspeaker having a conical stabilizing element joined between an underside of a speaker membrane and an outside surface of a speaker moving coil carrier

Also Published As

Publication number Publication date
US2071828A (en) 1937-02-23
FR791384A (en) 1935-12-10

Similar Documents

Publication Publication Date Title
GB440041A (en) Improvements in or relating to loud-speakers and the like
GB311486A (en) Improvements relating to electro-magnetic acoustic devices for the interconversion of mechanical and electric oscillations, such as loud-speakers
GB672465A (en) Permanent magnet structure for a loudspeaker
GB435670A (en) Improvements in and relating to electro-dynamic sound reproducing devices
GB672467A (en) Improvements in and relating to sound reproducing devices
GB441061A (en) Improvements in or relating to loudspeakers and the like
GB375598A (en) Improvements in and relating to loud speakers and like apparatus
GB447846A (en) Improvements in and relating to moving-coil loud speakers
GB448189A (en) Improvements in or relating to moving coil loudspeakers
GB485007A (en) Improvements in radio receiving apparatus
GB326614A (en) Improvements in sound amplifiers or loud speakers
GB405538A (en) Improvements in moving-coil loud speakers
GB719188A (en) Improvements in or relating to electro-dynamic loud-speakers
GB396314A (en) Improvements in and relating to moving coil loud-speakers
GB359092A (en) Improvements in loud speakers
GB397682A (en) Improvements in moving coil loudspeakers
GB385602A (en) Improvements in or relating to sound transmitters
AU105197B2 (en) Electrodynamic loud speaker with combined yoke and transformer
CA485804A (en) Centrifugal pulley clutch
GB322622A (en) Improvements in and relating to loud speakers
GB329582A (en) Improvements in and relating to loudspeakers
GB239245A (en) Improvements in or relating to sound reproducing devices
AU400037A (en) Electrodynamic loud speaker with combined yoke and transformer
AU108382B2 (en) Loudspeaker membrane
GB359526A (en) Diaphragm for recording and reproducing acoustic oscillations