GB313282A - Improvements relating to loud speakers - Google Patents

Improvements relating to loud speakers

Info

Publication number
GB313282A
GB313282A GB1408828A GB1408828A GB313282A GB 313282 A GB313282 A GB 313282A GB 1408828 A GB1408828 A GB 1408828A GB 1408828 A GB1408828 A GB 1408828A GB 313282 A GB313282 A GB 313282A
Authority
GB
United Kingdom
Prior art keywords
diaphragm
baffle
loud
improvements relating
loud 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
GB1408828A
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.)
Radio & Electric Services Ltd
Original Assignee
Radio & Electric Services 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 Radio & Electric Services Ltd filed Critical Radio & Electric Services Ltd
Priority to GB1408828A priority Critical patent/GB313282A/en
Publication of GB313282A publication Critical patent/GB313282A/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

313,282. Radio & Electric Services, Ltd., and Groom, B. May 14, 1928. Loud-speakers; diaphragms.- A loud-speaker of the largediaphram type is provided with a baffle telescopically related to the diaphragm in order to vary the strength of the lower frequencies. Thus the cylindrical extension 6 of the diaphragm 1, which may be flat or conical, contains a cylindrical extension 7 of the conical baffle 5; in a modification the baffle and diaphragm consist of two nested cones. Means, not shown, are provided for varying the relative positions of diaphragm and baffle.
GB1408828A 1928-05-14 1928-05-14 Improvements relating to loud speakers Expired GB313282A (en)

Priority Applications (1)

Application Number Priority Date Filing Date Title
GB1408828A GB313282A (en) 1928-05-14 1928-05-14 Improvements relating to loud speakers

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
GB1408828A GB313282A (en) 1928-05-14 1928-05-14 Improvements relating to loud speakers

Publications (1)

Publication Number Publication Date
GB313282A true GB313282A (en) 1929-06-13

Family

ID=10034765

Family Applications (1)

Application Number Title Priority Date Filing Date
GB1408828A Expired GB313282A (en) 1928-05-14 1928-05-14 Improvements relating to loud speakers

Country Status (1)

Country Link
GB (1) GB313282A (en)

Cited By (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US3032136A (en) * 1956-09-27 1962-05-01 Jr Andrew Stewart Hegeman Loudspeaker

Cited By (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US3032136A (en) * 1956-09-27 1962-05-01 Jr Andrew Stewart Hegeman Loudspeaker

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