GB260230A - Improvements in loud speakers - Google Patents

Improvements in loud speakers

Info

Publication number
GB260230A
GB260230A GB24406/26A GB2440626A GB260230A GB 260230 A GB260230 A GB 260230A GB 24406/26 A GB24406/26 A GB 24406/26A GB 2440626 A GB2440626 A GB 2440626A GB 260230 A GB260230 A GB 260230A
Authority
GB
United Kingdom
Prior art keywords
loud
diaphragm
frame
loud speakers
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
GB24406/26A
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.)
Koninklijke Philips NV
Original Assignee
Philips Gloeilampenfabrieken NV
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 Philips Gloeilampenfabrieken NV filed Critical Philips Gloeilampenfabrieken NV
Publication of GB260230A publication Critical patent/GB260230A/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
    • H04R1/32—Arrangements for obtaining desired frequency or directional characteristics for obtaining desired directional characteristic only
    • H04R1/34—Arrangements for obtaining desired frequency or directional characteristics for obtaining desired directional characteristic only by using a single transducer with sound reflecting, diffracting, directing or guiding means
    • H04R1/345—Arrangements for obtaining desired frequency or directional characteristics for obtaining desired directional characteristic only by using a single transducer with sound reflecting, diffracting, directing or guiding means for loudspeakers
    • 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
    • H04R7/20—Securing diaphragm or cone resiliently to support by flexible material, springs, cords, or strands

Landscapes

  • Engineering & Computer Science (AREA)
  • Health & Medical Sciences (AREA)
  • Otolaryngology (AREA)
  • Physics & Mathematics (AREA)
  • Acoustics & Sound (AREA)
  • Signal Processing (AREA)
  • Multimedia (AREA)
  • Diaphragms For Electromechanical Transducers (AREA)
  • Details Of Audible-Bandwidth Transducers (AREA)

Abstract

260,230. Naamlooze Vennootschap Philips' Gloeilampenfabrieken. Oct. 21,1925, [Convention date]. Diaphragms; loud-speakers. - The diaphragm 1 of a loud-speaker is stretched in a bowl or dishshaped frame 3 by yielding material 2, such as leather or rubber, secured to the edge of the diaphragm and one or more discshaped bodies 5, 6, 7 are arranged within the frame to form acoustic chambers.
GB24406/26A 1925-10-21 1926-10-02 Improvements in loud speakers Expired GB260230A (en)

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
NL260230X 1925-10-21

Publications (1)

Publication Number Publication Date
GB260230A true GB260230A (en) 1927-04-28

Family

ID=19781471

Family Applications (1)

Application Number Title Priority Date Filing Date
GB24406/26A Expired GB260230A (en) 1925-10-21 1926-10-02 Improvements in loud speakers

Country Status (5)

Country Link
US (1) US1859758A (en)
BE (1) BE335671A (en)
FR (1) FR619732A (en)
GB (1) GB260230A (en)
NL (1) NL17820C (en)

Also Published As

Publication number Publication date
FR619732A (en) 1927-04-07
US1859758A (en) 1932-05-24
NL17820C (en)
BE335671A (en)

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