GB304888A - Improvements in diaphragms for use in connection with gramophone sound boxes, loud speaking telephone receivers and for like purposes - Google Patents

Improvements in diaphragms for use in connection with gramophone sound boxes, loud speaking telephone receivers and for like purposes

Info

Publication number
GB304888A
GB304888A GB3426327A GB3426327A GB304888A GB 304888 A GB304888 A GB 304888A GB 3426327 A GB3426327 A GB 3426327A GB 3426327 A GB3426327 A GB 3426327A GB 304888 A GB304888 A GB 304888A
Authority
GB
United Kingdom
Prior art keywords
diaphragms
purposes
connection
sound boxes
telephone receivers
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
GB3426327A
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
Priority to GB3426327A priority Critical patent/GB304888A/en
Publication of GB304888A publication Critical patent/GB304888A/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
    • H04R7/12—Non-planar diaphragms or cones
    • H04R7/14—Non-planar diaphragms or cones corrugated, pleated or ribbed

Landscapes

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

Abstract

304,888. Tuite, T. H. Dec. 17, 1927. Sound-box casings. - The airspace at the inner side of the diaphragm A<1> is made substantially uniform by the provision of a conical apertured disc O mounted on the cover N of the sound-box. An india-rubber washer Q separates the cover from the socket R.
GB3426327A 1927-12-17 1927-12-17 Improvements in diaphragms for use in connection with gramophone sound boxes, loud speaking telephone receivers and for like purposes Expired GB304888A (en)

Priority Applications (1)

Application Number Priority Date Filing Date Title
GB3426327A GB304888A (en) 1927-12-17 1927-12-17 Improvements in diaphragms for use in connection with gramophone sound boxes, loud speaking telephone receivers and for like purposes

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
GB3426327A GB304888A (en) 1927-12-17 1927-12-17 Improvements in diaphragms for use in connection with gramophone sound boxes, loud speaking telephone receivers and for like purposes

Publications (1)

Publication Number Publication Date
GB304888A true GB304888A (en) 1929-01-31

Family

ID=10363463

Family Applications (1)

Application Number Title Priority Date Filing Date
GB3426327A Expired GB304888A (en) 1927-12-17 1927-12-17 Improvements in diaphragms for use in connection with gramophone sound boxes, loud speaking telephone receivers and for like purposes

Country Status (1)

Country Link
GB (1) GB304888A (en)

Cited By (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
GB2169471A (en) * 1985-01-04 1986-07-09 Anthony Bernard Clarke Acoustic diaphragm

Cited By (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
GB2169471A (en) * 1985-01-04 1986-07-09 Anthony Bernard Clarke Acoustic diaphragm

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