GB191215530A - Improvements in Soundboxes for Talking Machines and like Instruments. - Google Patents

Improvements in Soundboxes for Talking Machines and like Instruments.

Info

Publication number
GB191215530A
GB191215530A GB191215530DA GB191215530A GB 191215530 A GB191215530 A GB 191215530A GB 191215530D A GB191215530D A GB 191215530DA GB 191215530 A GB191215530 A GB 191215530A
Authority
GB
United Kingdom
Prior art keywords
diaphragm
soundboxes
instruments
talking machines
strut
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
Inventor
Louis Lumiere
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
Application granted granted Critical
Publication of GB191215530A publication Critical patent/GB191215530A/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

Landscapes

  • Engineering & Computer Science (AREA)
  • Multimedia (AREA)
  • Physics & Mathematics (AREA)
  • Acoustics & Sound (AREA)
  • Signal Processing (AREA)
  • Casings For Electric Apparatus (AREA)
  • Telephone Set Structure (AREA)

Abstract

15,530. Lumiere, L. July 7, 1911, [Convention date]. Diaphragms.-A sound-box has its diaphragm 2 rectangular and mounted between elastic gaskets held under flanges 8 on two sides of the sound-box, the stylus bar 3 being attached to a strut 14 across the middle of the diaphragm, whereby the diaphragm flexes mainly on one line only. The strut 14 is curved, being widest at its centre.
GB191215530D 1911-07-07 1912-07-03 Improvements in Soundboxes for Talking Machines and like Instruments. Expired GB191215530A (en)

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
FR443172T 1911-07-07

Publications (1)

Publication Number Publication Date
GB191215530A true GB191215530A (en) 1912-11-21

Family

ID=1484274

Family Applications (1)

Application Number Title Priority Date Filing Date
GB191215530D Expired GB191215530A (en) 1911-07-07 1912-07-03 Improvements in Soundboxes for Talking Machines and like Instruments.

Country Status (4)

Country Link
AT (1) AT63874B (en)
FR (1) FR443172A (en)
GB (1) GB191215530A (en)
NL (1) NL553C (en)

Also Published As

Publication number Publication date
NL553C (en) 1915-03-01
AT63874B (en) 1914-03-10
FR443172A (en) 1912-09-18

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