GB675104A - Improvements in or relating to loudspeakers - Google Patents

Improvements in or relating to loudspeakers

Info

Publication number
GB675104A
GB675104A GB1878148D GB1878148D GB675104A GB 675104 A GB675104 A GB 675104A GB 1878148 D GB1878148 D GB 1878148D GB 1878148 D GB1878148 D GB 1878148D GB 675104 A GB675104 A GB 675104A
Authority
GB
United Kingdom
Prior art keywords
loud
july
diaphragm
loudspeakers
relating
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
GB1878148D
Inventor
John Albert Rasell
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.)
EMI Ltd
Electrical and Musical Industries Ltd
Original Assignee
EMI Ltd
Electrical and Musical Industries 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 EMI Ltd, Electrical and Musical Industries Ltd filed Critical EMI Ltd
Priority to GB1878148D priority Critical patent/GB675104A/en
Publication of GB675104A publication Critical patent/GB675104A/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

Landscapes

  • Engineering & Computer Science (AREA)
  • Multimedia (AREA)
  • Physics & Mathematics (AREA)
  • Acoustics & Sound (AREA)
  • Signal Processing (AREA)
  • Diaphragms For Electromechanical Transducers (AREA)
  • Audible-Bandwidth Dynamoelectric Transducers Other Than Pickups (AREA)

Abstract

675,104. Loud-speakers; diaphragms. ELECTRIC & MUSICAL INDUSTRIES, Ltd. July 17, 1950 [July 16, 1949], No. 18781/49. Class 40 (iv). In a loud-speaker (preferably of the moving coil type) having a diaphragm of metal foil supported at its periphery by a flexible support the diaphragm is in the form of a right elliptical cone, and is preferably of aluminium.
GB1878148D 1948-07-16 1948-07-16 Improvements in or relating to loudspeakers Expired GB675104A (en)

Priority Applications (1)

Application Number Priority Date Filing Date Title
GB1878148D GB675104A (en) 1948-07-16 1948-07-16 Improvements in or relating to loudspeakers

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
GB1878148D GB675104A (en) 1948-07-16 1948-07-16 Improvements in or relating to loudspeakers

Publications (1)

Publication Number Publication Date
GB675104A true GB675104A (en) 1952-07-02

Family

ID=10118311

Family Applications (1)

Application Number Title Priority Date Filing Date
GB1878148D Expired GB675104A (en) 1948-07-16 1948-07-16 Improvements in or relating to loudspeakers

Country Status (1)

Country Link
GB (1) GB675104A (en)

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