GB333796A - Improvements in loud speakers - Google Patents

Improvements in loud speakers

Info

Publication number
GB333796A
GB333796A GB30886/29A GB3088629A GB333796A GB 333796 A GB333796 A GB 333796A GB 30886/29 A GB30886/29 A GB 30886/29A GB 3088629 A GB3088629 A GB 3088629A GB 333796 A GB333796 A GB 333796A
Authority
GB
United Kingdom
Prior art keywords
loud
rod
support
driving unit
rigid
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
GB30886/29A
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 GB333796A publication Critical patent/GB333796A/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

Landscapes

  • Engineering & Computer Science (AREA)
  • Multimedia (AREA)
  • Physics & Mathematics (AREA)
  • Acoustics & Sound (AREA)
  • Signal Processing (AREA)
  • Auxiliary Devices For Music (AREA)

Abstract

333,796. Jouffray, J. F. Oct. 12, 1928, [Convention date]. Loud-speakers ; magnetic - instruments.-A loud-speaker comprises an electromagnetic driving unit 1, a rod 3 actuated thereby, a rigid support 2 on which the driving unit 1 is mounted and a second rigid member 5 rigidly fixed to the support 2, the driving rod 3 being attached to the member 5. The driving rod 3 is unable to perform longitudinal vibrations and vibrates transversely. The rigid member 5 may be the sounding board of a piano.
GB30886/29A 1928-10-12 1929-10-11 Improvements in loud speakers Expired GB333796A (en)

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
FR662693T 1928-10-12

Publications (1)

Publication Number Publication Date
GB333796A true GB333796A (en) 1930-08-21

Family

ID=9011645

Family Applications (1)

Application Number Title Priority Date Filing Date
GB30886/29A Expired GB333796A (en) 1928-10-12 1929-10-11 Improvements in loud speakers

Country Status (3)

Country Link
BE (1) BE364298A (en)
FR (1) FR662693A (en)
GB (1) GB333796A (en)

Also Published As

Publication number Publication date
BE364298A (en)
FR662693A (en) 1929-08-09

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