GB155966A - An improved sound-box or reproducer for gramophones, phonographs or like instruments - Google Patents

An improved sound-box or reproducer for gramophones, phonographs or like instruments

Info

Publication number
GB155966A
GB155966A GB2786719A GB2786719A GB155966A GB 155966 A GB155966 A GB 155966A GB 2786719 A GB2786719 A GB 2786719A GB 2786719 A GB2786719 A GB 2786719A GB 155966 A GB155966 A GB 155966A
Authority
GB
United Kingdom
Prior art keywords
gramophones
phonographs
reproducer
instruments
box
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
GB2786719A
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.)
ARTHUR WILLIAM LUDLOW DORE
ROBERT WILLIAM CARNABY
Original Assignee
ARTHUR WILLIAM LUDLOW DORE
ROBERT WILLIAM CARNABY
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 ARTHUR WILLIAM LUDLOW DORE, ROBERT WILLIAM CARNABY filed Critical ARTHUR WILLIAM LUDLOW DORE
Priority to GB2786719A priority Critical patent/GB155966A/en
Publication of GB155966A publication Critical patent/GB155966A/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
    • H04R7/04—Plane diaphragms

Landscapes

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

Abstract

155,966. DorÚ, A. W. L., and Carnaby, R. W. Nov. 11, 1919. Diaphragms, shape of. -A diaphragm J is in the form of a rhombus or rhomboid with the extreme ends in the direction of the major diagonal rounded.
GB2786719A 1919-11-11 1919-11-11 An improved sound-box or reproducer for gramophones, phonographs or like instruments Expired GB155966A (en)

Priority Applications (1)

Application Number Priority Date Filing Date Title
GB2786719A GB155966A (en) 1919-11-11 1919-11-11 An improved sound-box or reproducer for gramophones, phonographs or like instruments

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
GB2786719A GB155966A (en) 1919-11-11 1919-11-11 An improved sound-box or reproducer for gramophones, phonographs or like instruments

Publications (1)

Publication Number Publication Date
GB155966A true GB155966A (en) 1921-01-06

Family

ID=10266586

Family Applications (1)

Application Number Title Priority Date Filing Date
GB2786719A Expired GB155966A (en) 1919-11-11 1919-11-11 An improved sound-box or reproducer for gramophones, phonographs or like instruments

Country Status (1)

Country Link
GB (1) GB155966A (en)

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