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GB378371A - Improvements in and relating to loud speakers - Google Patents

Improvements in and relating to loud speakers

Info

Publication number
GB378371A
GB378371A GB15316/32A GB1531632A GB378371A GB 378371 A GB378371 A GB 378371A GB 15316/32 A GB15316/32 A GB 15316/32A GB 1531632 A GB1531632 A GB 1531632A GB 378371 A GB378371 A GB 378371A
Authority
GB
United Kingdom
Prior art keywords
sections
section
carrying case
relating
secured
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
GB15316/32A
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 GB378371A publication Critical patent/GB378371A/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)
  • Casings For Electric Apparatus (AREA)

Abstract

378,371. Sound - magnifying appliances. BRITISH THOMSON-HOUSTON CO., Ltd., Crown House, Aldwych, London.-(Assignees of Scheldorf, M. W. ; 125, E. Bettlewood Avenue, Oaklyn, New Jersey, U.S.A.) May 30, 1932, No. 15316. Convention date, May 28, 1931. [Class 13.] The horn of a portable loudspeaking apparatus is built up of two sections 14, 15, the housing 16 for the sound reproducing unit being secured to the smaller end of section 15 whilst the larger end of section 14 is permanently secured to one of the members 11 of the carrying case. The sections are held together by eye-bolts 20 and are adapted when dismantled and housed within the carrying case to be nested one within the other.
GB15316/32A 1931-05-28 1932-05-30 Improvements in and relating to loud speakers Expired GB378371A (en)

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
US378371XA 1931-05-28 1931-05-28

Publications (1)

Publication Number Publication Date
GB378371A true GB378371A (en) 1932-08-11

Family

ID=21896638

Family Applications (1)

Application Number Title Priority Date Filing Date
GB15316/32A Expired GB378371A (en) 1931-05-28 1932-05-30 Improvements in and relating to loud speakers

Country Status (1)

Country Link
GB (1) GB378371A (en)

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