GB262485A - Improved diaphragm for use in the reproduction of sound waves - Google Patents

Improved diaphragm for use in the reproduction of sound waves

Info

Publication number
GB262485A
GB262485A GB31019/26A GB3101926A GB262485A GB 262485 A GB262485 A GB 262485A GB 31019/26 A GB31019/26 A GB 31019/26A GB 3101926 A GB3101926 A GB 3101926A GB 262485 A GB262485 A GB 262485A
Authority
GB
United Kingdom
Prior art keywords
reproduction
diaphragm
sound waves
improved diaphragm
diapkragms
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
GB31019/26A
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.)
Parlophone Records Ltd
Original Assignee
Gramophone Co Ltd
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 Gramophone Co Ltd filed Critical Gramophone Co Ltd
Publication of GB262485A publication Critical patent/GB262485A/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

Landscapes

  • Engineering & Computer Science (AREA)
  • Multimedia (AREA)
  • Physics & Mathematics (AREA)
  • Acoustics & Sound (AREA)
  • Signal Processing (AREA)
  • Diaphragms For Electromechanical Transducers (AREA)

Abstract

262,485. Gramophone Co., Ltd., (Assignees of Wickes, C. S., and Victor Talking Machine Co.). Dec. 7, 1925, [Convention date]. Diapkragms. - Chemically pure aluminium preferably containing not more than 0-2 per cent of impurities is used for the diaphragms of acoustic instruments. The diaphragm is preferably formed by rolling to .002 inches thick, but the thickness may be varied in accordance with the size of the diaphragm and fins may be formed by pressing.
GB31019/26A 1925-12-07 1926-12-07 Improved diaphragm for use in the reproduction of sound waves Expired GB262485A (en)

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
US262485XA 1925-12-07 1925-12-07

Publications (1)

Publication Number Publication Date
GB262485A true GB262485A (en) 1927-03-17

Family

ID=21830718

Family Applications (1)

Application Number Title Priority Date Filing Date
GB31019/26A Expired GB262485A (en) 1925-12-07 1926-12-07 Improved diaphragm for use in the reproduction of sound waves

Country Status (1)

Country Link
GB (1) GB262485A (en)

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