GB309156A - An improved sound distributing device - Google Patents

An improved sound distributing device

Info

Publication number
GB309156A
GB309156A GB19929/28A GB1992928A GB309156A GB 309156 A GB309156 A GB 309156A GB 19929/28 A GB19929/28 A GB 19929/28A GB 1992928 A GB1992928 A GB 1992928A GB 309156 A GB309156 A GB 309156A
Authority
GB
United Kingdom
Prior art keywords
distributing device
felt
diaphragm
segments
improved 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
GB19929/28A
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 GB309156A publication Critical patent/GB309156A/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
    • H04R7/16—Mounting or tensioning of diaphragms or cones
    • H04R7/18—Mounting or tensioning of diaphragms or cones at the periphery
    • 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
    • H04R7/14—Non-planar diaphragms or cones corrugated, pleated or ribbed

Landscapes

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

Abstract

309,156. Lumiere, L. April 6, 1928, [Convention date]. Void [Published under Sect. 91 of the Acts]. Addition to 298,977. Diaphragms. - A diaphragm of the type described in the parent Specification and comprising a plurality of segments pleated along lines parallel to the radii of the segments, is supported by a plurality of studs g of felt, cork or indiarubber mounted on springs h which exercise a radial pressure on the diaphragm. A central plug member a of felt &c. is connected to the armature d of the electromagent e.
GB19929/28A 1927-10-18 1928-07-09 An improved sound distributing device Expired GB309156A (en)

Applications Claiming Priority (2)

Application Number Priority Date Filing Date Title
FR655114T 1927-10-18
FR35370T 1928-04-06

Publications (1)

Publication Number Publication Date
GB309156A true GB309156A (en) 1929-11-28

Family

ID=26182663

Family Applications (2)

Application Number Title Priority Date Filing Date
GB19854/28A Expired GB298977A (en) 1927-10-18 1928-07-09 An improved sound distributing device
GB19929/28A Expired GB309156A (en) 1927-10-18 1928-07-09 An improved sound distributing device

Family Applications Before (1)

Application Number Title Priority Date Filing Date
GB19854/28A Expired GB298977A (en) 1927-10-18 1928-07-09 An improved sound distributing device

Country Status (4)

Country Link
BE (1) BE352536A (en)
CH (1) CH133241A (en)
FR (2) FR655114A (en)
GB (2) GB298977A (en)

Families Citing this family (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US4434203A (en) * 1980-10-27 1984-02-28 Setra Systems, Inc. Diaphragm

Also Published As

Publication number Publication date
BE352536A (en)
CH133241A (en) 1929-05-31
GB298977A (en) 1929-02-21
FR655114A (en) 1929-04-15
FR35370E (en) 1930-03-08

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