GB327776A - Improved large diaphragm or cone reproducer applicable for use in gramophones and loud speakers - Google Patents

Improved large diaphragm or cone reproducer applicable for use in gramophones and loud speakers

Info

Publication number
GB327776A
GB327776A GB215729A GB215729A GB327776A GB 327776 A GB327776 A GB 327776A GB 215729 A GB215729 A GB 215729A GB 215729 A GB215729 A GB 215729A GB 327776 A GB327776 A GB 327776A
Authority
GB
United Kingdom
Prior art keywords
cone
gramophones
reproducer
applicable
loud speakers
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
GB215729A
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.)
WILFRED JOSEPH JEFFERY
Original Assignee
WILFRED JOSEPH JEFFERY
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 WILFRED JOSEPH JEFFERY filed Critical WILFRED JOSEPH JEFFERY
Priority to GB215729A priority Critical patent/GB327776A/en
Priority to GB566730A priority patent/GB328237A/en
Publication of GB327776A publication Critical patent/GB327776A/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
    • H04R1/00—Details of transducers, loudspeakers or microphones
    • H04R1/20—Arrangements for obtaining desired frequency or directional characteristics
    • 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

Landscapes

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

Abstract

327,776. Jeffery, W. G., and Jeffery, W. J. Jan. 22, 1929. Diaphragms.-The conical or other shaped diaphragm A for use in a talking machine or loudspeaker is supported on a rubber, felt &c. cushion C in a frame B by means of a number of elastics, tapes, ligaments &c. E stretched across the frame and preferably reposing in slots D cut out from the edge of the cone.
GB215729A 1929-01-22 1929-01-22 Improved large diaphragm or cone reproducer applicable for use in gramophones and loud speakers Expired GB327776A (en)

Priority Applications (2)

Application Number Priority Date Filing Date Title
GB215729A GB327776A (en) 1929-01-22 1929-01-22 Improved large diaphragm or cone reproducer applicable for use in gramophones and loud speakers
GB566730A GB328237A (en) 1929-01-22 1929-01-22 Improvements in or relating to talking machines, and loud speakers

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
GB215729A GB327776A (en) 1929-01-22 1929-01-22 Improved large diaphragm or cone reproducer applicable for use in gramophones and loud speakers

Publications (1)

Publication Number Publication Date
GB327776A true GB327776A (en) 1930-04-17

Family

ID=9734586

Family Applications (2)

Application Number Title Priority Date Filing Date
GB215729A Expired GB327776A (en) 1929-01-22 1929-01-22 Improved large diaphragm or cone reproducer applicable for use in gramophones and loud speakers
GB566730A Expired GB328237A (en) 1929-01-22 1929-01-22 Improvements in or relating to talking machines, and loud speakers

Family Applications After (1)

Application Number Title Priority Date Filing Date
GB566730A Expired GB328237A (en) 1929-01-22 1929-01-22 Improvements in or relating to talking machines, and loud speakers

Country Status (1)

Country Link
GB (2) GB327776A (en)

Cited By (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
WO2000078091A2 (en) * 1999-06-14 2000-12-21 B & W Loudspeakers Limited Stiffened membrane assemblies
WO2004114721A1 (en) * 2003-06-18 2004-12-29 B & W Loudspeakers Limited Diaphragms for loudspeaker drive units

Cited By (4)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
WO2000078091A2 (en) * 1999-06-14 2000-12-21 B & W Loudspeakers Limited Stiffened membrane assemblies
WO2000078091A3 (en) * 1999-06-14 2001-05-25 B & W Loudspeakers Stiffened membrane assemblies
WO2004114721A1 (en) * 2003-06-18 2004-12-29 B & W Loudspeakers Limited Diaphragms for loudspeaker drive units
US7510048B2 (en) 2003-06-18 2009-03-31 B&W Group Ltd Diaphragms for loudspeaker drive units

Also Published As

Publication number Publication date
GB328237A (en) 1930-04-22

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