GB382868A - Improvements relating to sound amplifying apparatus - Google Patents

Improvements relating to sound amplifying apparatus

Info

Publication number
GB382868A
GB382868A GB951232A GB951232A GB382868A GB 382868 A GB382868 A GB 382868A GB 951232 A GB951232 A GB 951232A GB 951232 A GB951232 A GB 951232A GB 382868 A GB382868 A GB 382868A
Authority
GB
United Kingdom
Prior art keywords
improvements relating
amplifying apparatus
sound amplifying
horn
diaphragm
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
GB951232A
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
Priority to GB951232A priority Critical patent/GB382868A/en
Publication of GB382868A publication Critical patent/GB382868A/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

Landscapes

  • Health & Medical Sciences (AREA)
  • Otolaryngology (AREA)
  • Physics & Mathematics (AREA)
  • Engineering & Computer Science (AREA)
  • Acoustics & Sound (AREA)
  • Signal Processing (AREA)
  • Obtaining Desirable Characteristics In Audible-Bandwidth Transducers (AREA)

Abstract

382,868. Loud-speakers. MURDOCH, S. J., 20, Kitchener Street, Belfast. April 2, 1932, No. 9512. [Class 40 (iv).] A sound reproducing device, such as a gramophone or wireless loudspeaker, has a diaphragm 1 spaced from and attached to the horn 9 or baffle board 4 by screws 5, rubber washers or distance-pieces 6 and rubber washers 7. The diaphragm is formed with or has mounted thereon a conical or other projection 2 or 8 adapted to extend into the mouth of the horn or into the cone 3.
GB951232A 1932-04-02 1932-04-02 Improvements relating to sound amplifying apparatus Expired GB382868A (en)

Priority Applications (1)

Application Number Priority Date Filing Date Title
GB951232A GB382868A (en) 1932-04-02 1932-04-02 Improvements relating to sound amplifying apparatus

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
GB951232A GB382868A (en) 1932-04-02 1932-04-02 Improvements relating to sound amplifying apparatus

Publications (1)

Publication Number Publication Date
GB382868A true GB382868A (en) 1932-11-03

Family

ID=9873382

Family Applications (1)

Application Number Title Priority Date Filing Date
GB951232A Expired GB382868A (en) 1932-04-02 1932-04-02 Improvements relating to sound amplifying apparatus

Country Status (1)

Country Link
GB (1) GB382868A (en)

Cited By (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US2853145A (en) * 1953-09-09 1958-09-23 Baldwin Piano Co Reverberation loud-speaker assembly
US2956636A (en) * 1956-06-11 1960-10-18 Sipko L Boersma Loudspeaker

Cited By (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US2853145A (en) * 1953-09-09 1958-09-23 Baldwin Piano Co Reverberation loud-speaker assembly
US2956636A (en) * 1956-06-11 1960-10-18 Sipko L Boersma Loudspeaker

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