GB240620A - An improved diaphragm for gramophone sound boxes - Google Patents

An improved diaphragm for gramophone sound boxes

Info

Publication number
GB240620A
GB240620A GB2094424A GB2094424A GB240620A GB 240620 A GB240620 A GB 240620A GB 2094424 A GB2094424 A GB 2094424A GB 2094424 A GB2094424 A GB 2094424A GB 240620 A GB240620 A GB 240620A
Authority
GB
United Kingdom
Prior art keywords
sound boxes
improved diaphragm
gramophone sound
gramophone
diaphragm
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
GB2094424A
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.)
SYDNEY WALLER EASTTY
Original Assignee
SYDNEY WALLER EASTTY
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 SYDNEY WALLER EASTTY filed Critical SYDNEY WALLER EASTTY
Priority to GB2094424A priority Critical patent/GB240620A/en
Publication of GB240620A publication Critical patent/GB240620A/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)
  • Diaphragms For Electromechanical Transducers (AREA)

Abstract

240,620. Eastty, S. W. Sept. 5, 1924. Diaphragms.-A diaphragm for a gramophone sound-box is pressed from sheet aluminium of 0.006 inches thickness and is somewhat ground down from its centre to the periphery and formed with concentric corrugations 2, 3, 4 between a flat central part 1 and a sunk part 6 adjacent a flat periphery 5.
GB2094424A 1924-09-05 1924-09-05 An improved diaphragm for gramophone sound boxes Expired GB240620A (en)

Priority Applications (1)

Application Number Priority Date Filing Date Title
GB2094424A GB240620A (en) 1924-09-05 1924-09-05 An improved diaphragm for gramophone sound boxes

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
GB2094424A GB240620A (en) 1924-09-05 1924-09-05 An improved diaphragm for gramophone sound boxes

Publications (1)

Publication Number Publication Date
GB240620A true GB240620A (en) 1925-10-08

Family

ID=10154467

Family Applications (1)

Application Number Title Priority Date Filing Date
GB2094424A Expired GB240620A (en) 1924-09-05 1924-09-05 An improved diaphragm for gramophone sound boxes

Country Status (1)

Country Link
GB (1) GB240620A (en)

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