GB191120434A - Improvements in and relating to the Diaphragms of Telephonic Receivers and like Instruments. - Google Patents

Improvements in and relating to the Diaphragms of Telephonic Receivers and like Instruments.

Info

Publication number
GB191120434A
GB191120434A GB191120434DA GB191120434A GB 191120434 A GB191120434 A GB 191120434A GB 191120434D A GB191120434D A GB 191120434DA GB 191120434 A GB191120434 A GB 191120434A
Authority
GB
United Kingdom
Prior art keywords
diaphragms
instruments
relating
telephonic receivers
telephonic
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
Inventor
Alexander Marr
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
Application granted granted Critical
Publication of GB191120434A publication Critical patent/GB191120434A/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
    • H04R7/16—Mounting or tensioning of diaphragms or cones
    • H04R7/18—Mounting or tensioning of diaphragms or cones at the periphery

Landscapes

  • Engineering & Computer Science (AREA)
  • Multimedia (AREA)
  • Physics & Mathematics (AREA)
  • Acoustics & Sound (AREA)
  • Signal Processing (AREA)
  • Measuring Fluid Pressure (AREA)

Abstract

20,434. Marr, A. Sept. 15. Diaphragms.-Consists in supporting the diaphragm of a phonograph or the like entirely at the peripheral edges. The diaphragm C fits into a groove in the ring E, into which it may be inserted in several different ways which are described, so as to touch the walls of the groove only by the extreme periphery of each face, Fig. 3.
GB191120434D 1911-09-15 1911-09-15 Improvements in and relating to the Diaphragms of Telephonic Receivers and like Instruments. Expired GB191120434A (en)

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
GB191120434T 1911-09-15

Publications (1)

Publication Number Publication Date
GB191120434A true GB191120434A (en) 1912-09-12

Family

ID=32566952

Family Applications (1)

Application Number Title Priority Date Filing Date
GB191120434D Expired GB191120434A (en) 1911-09-15 1911-09-15 Improvements in and relating to the Diaphragms of Telephonic Receivers and like Instruments.

Country Status (1)

Country Link
GB (1) GB191120434A (en)

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