GB284971A - Improvements in or relating to hornless loud speakers - Google Patents

Improvements in or relating to hornless loud speakers

Info

Publication number
GB284971A
GB284971A GB31384/27A GB3138427A GB284971A GB 284971 A GB284971 A GB 284971A GB 31384/27 A GB31384/27 A GB 31384/27A GB 3138427 A GB3138427 A GB 3138427A GB 284971 A GB284971 A GB 284971A
Authority
GB
United Kingdom
Prior art keywords
loud
hornless
cap
relating
speaker
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
GB31384/27A
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
Publication of GB284971A publication Critical patent/GB284971A/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
    • H04R1/02—Casings; Cabinets ; Supports therefor; Mountings therein
    • H04R1/023—Screens for loudspeakers

Landscapes

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

Abstract

284,971. Brinkmann, F. June 24, 1927, [Convention date]. Loud-speakers. - A perforated protecting cap 3 forming half of the casing of a hornless loud-speaker, the casing being constituted by two such caps secured edge to edge, is provided with a cloth coating 1 held tight by means of a rubber ring or band, aspiral spring ring, or a tightened cord &c. 2 located within the rim of the cap. The material of the cap at the opening 4 for admitting the adjusting means for the loud-speaker may be flanged over the cloth as shown. Alternatively, a flanged bush may be pressed into the opening,
GB31384/27A 1927-06-24 1927-11-22 Improvements in or relating to hornless loud speakers Expired GB284971A (en)

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
DE284971X 1927-06-24

Publications (1)

Publication Number Publication Date
GB284971A true GB284971A (en) 1928-02-09

Family

ID=6054824

Family Applications (1)

Application Number Title Priority Date Filing Date
GB31384/27A Expired GB284971A (en) 1927-06-24 1927-11-22 Improvements in or relating to hornless loud speakers

Country Status (1)

Country Link
GB (1) GB284971A (en)

Cited By (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
FR2509107A1 (en) * 1981-07-03 1983-01-07 Tonnerroi Electron Ind Front panel for loudspeaker - comprises frame with material stretched across and held by elastic cord

Cited By (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
FR2509107A1 (en) * 1981-07-03 1983-01-07 Tonnerroi Electron Ind Front panel for loudspeaker - comprises frame with material stretched across and held by elastic cord

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