GB231542A - Improved apparatus or appliance for recording or reproducing sounds - Google Patents

Improved apparatus or appliance for recording or reproducing sounds

Info

Publication number
GB231542A
GB231542A GB2642523A GB2642523A GB231542A GB 231542 A GB231542 A GB 231542A GB 2642523 A GB2642523 A GB 2642523A GB 2642523 A GB2642523 A GB 2642523A GB 231542 A GB231542 A GB 231542A
Authority
GB
United Kingdom
Prior art keywords
diaphragm
appliance
recording
rubber
improved apparatus
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
GB2642523A
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.)
FRANK PATON MOORE
KESTRAPHONE Co Ltd
Original Assignee
FRANK PATON MOORE
KESTRAPHONE 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 FRANK PATON MOORE, KESTRAPHONE Co Ltd filed Critical FRANK PATON MOORE
Priority to GB2642523A priority Critical patent/GB231542A/en
Publication of GB231542A publication Critical patent/GB231542A/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

231,542. Kestraphone Co., Ltd., and Moore, F. Paton-. Dec. 31, 1923. Tool-arms; sound-box casings.-In a gramophone soundbox having a built-up diaphragm consisting of a conical or like portion 3 and a flat disc 28, with an intervening central stay 29, the stay is tubular, and forms a means for attaching the stylus-bar to the diaphragm. The body 1 of the casing may be an aluminium casting. The back plate 5 conforms to the shape of the diaphragm, and has a thickened rim 5b with a recess in which an insulating ring 6 of rubber &c. is inserted. A rubber &c. washer 7 is interposed between the rim 5b and a screwed clamping- ring 8. The diaphragm may be so placed in its holder that its convex side faces outwardly, instead of towards the rear, as shown.
GB2642523A 1923-12-31 1923-12-31 Improved apparatus or appliance for recording or reproducing sounds Expired GB231542A (en)

Priority Applications (1)

Application Number Priority Date Filing Date Title
GB2642523A GB231542A (en) 1923-12-31 1923-12-31 Improved apparatus or appliance for recording or reproducing sounds

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
GB2642523A GB231542A (en) 1923-12-31 1923-12-31 Improved apparatus or appliance for recording or reproducing sounds

Publications (1)

Publication Number Publication Date
GB231542A true GB231542A (en) 1925-03-31

Family

ID=10243428

Family Applications (1)

Application Number Title Priority Date Filing Date
GB2642523A Expired GB231542A (en) 1923-12-31 1923-12-31 Improved apparatus or appliance for recording or reproducing sounds

Country Status (1)

Country Link
GB (1) GB231542A (en)

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