GB312031A - Improvements in and relating to sound reproducing apparatus - Google Patents

Improvements in and relating to sound reproducing apparatus

Info

Publication number
GB312031A
GB312031A GB25875/28A GB2587528A GB312031A GB 312031 A GB312031 A GB 312031A GB 25875/28 A GB25875/28 A GB 25875/28A GB 2587528 A GB2587528 A GB 2587528A GB 312031 A GB312031 A GB 312031A
Authority
GB
United Kingdom
Prior art keywords
relating
reproducing apparatus
cabinet
baffle board
sound reproducing
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
GB25875/28A
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.)
British Thomson Houston Co Ltd
Original Assignee
British Thomson Houston Co 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 British Thomson Houston Co Ltd filed Critical British Thomson Houston Co Ltd
Publication of GB312031A publication Critical patent/GB312031A/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
    • H04R1/021—Casings; Cabinets ; Supports therefor; Mountings therein incorporating only one transducer

Landscapes

  • Physics & Mathematics (AREA)
  • Engineering & Computer Science (AREA)
  • Acoustics & Sound (AREA)
  • Signal Processing (AREA)
  • Circuit For Audible Band Transducer (AREA)

Abstract

312,031. British Thomson-Houston Co., Ltd., (Assignees of Garrett, C. R.). May 19, 1928, [Convention date]. Loud-speakers. - In order to avoid acoustic feed-back and consequent howling in a radio receiver employing a built-in loud speaker, the baffle board 6 surrounding the diaphragm is set diagonally in its compartment of the cabinet 1. As shown, the upper part 3 of the cabinet houses the receiving-set and the lower part the loudspeaker. The baffle board 6 is of long narrow shape and is secured at its upper edge to the rear wall and at its lower edge to the front of the base member. Specification 290,235 is referred to.
GB25875/28A 1928-05-19 1928-09-08 Improvements in and relating to sound reproducing apparatus Expired GB312031A (en)

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
US312031XA 1928-05-19 1928-05-19

Publications (1)

Publication Number Publication Date
GB312031A true GB312031A (en) 1929-08-15

Family

ID=21858150

Family Applications (1)

Application Number Title Priority Date Filing Date
GB25875/28A Expired GB312031A (en) 1928-05-19 1928-09-08 Improvements in and relating to sound reproducing apparatus

Country Status (1)

Country Link
GB (1) GB312031A (en)

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