GB604159A - Improvements in or relating to acoustic transducers - Google Patents

Improvements in or relating to acoustic transducers

Info

Publication number
GB604159A
GB604159A GB28857/45A GB2885745A GB604159A GB 604159 A GB604159 A GB 604159A GB 28857/45 A GB28857/45 A GB 28857/45A GB 2885745 A GB2885745 A GB 2885745A GB 604159 A GB604159 A GB 604159A
Authority
GB
United Kingdom
Prior art keywords
magnet
diaphragm
loud
relating
acoustic transducers
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
GB28857/45A
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.)
OPERADIO Manufacturing CO
Original Assignee
OPERADIO Manufacturing CO
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 OPERADIO Manufacturing CO filed Critical OPERADIO Manufacturing CO
Publication of GB604159A publication Critical patent/GB604159A/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
    • H04R9/00—Transducers of moving-coil, moving-strip, or moving-wire type
    • H04R9/06—Loudspeakers
    • H04R9/063—Loudspeakers using a plurality of acoustic drivers

Landscapes

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

Abstract

604,159. Loud-speakers. OPERADIO MANUFACTURING CO. Oct. 31, 1945, No. 28867. Convention date, Nov. 3, 1944. Drawings to Specification. [Class 40 (iv)] A loud-speaker having a centrally apertured diaphragm, a supporting housing therefor behind the diaphragm, and a field magnet in front of the diaphragm, includes means, which may form the sole support of the magnet, extending through the aperture and rigidly connecting the magnet to the housing. To ensure correct centring of the magnet during assembly, a special jig is used.
GB28857/45A 1944-11-03 1945-10-31 Improvements in or relating to acoustic transducers Expired GB604159A (en)

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
US561776A US2423037A (en) 1944-11-03 1944-11-03 Electrodynamic loud-speaker

Publications (1)

Publication Number Publication Date
GB604159A true GB604159A (en) 1948-06-29

Family

ID=24243422

Family Applications (1)

Application Number Title Priority Date Filing Date
GB28857/45A Expired GB604159A (en) 1944-11-03 1945-10-31 Improvements in or relating to acoustic transducers

Country Status (2)

Country Link
US (1) US2423037A (en)
GB (1) GB604159A (en)

Cited By (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
DE1053031B (en) * 1955-03-05 1959-03-19 Georges Gogny Electrodynamic loudspeaker
DE1107277B (en) * 1959-04-25 1961-05-25 Philips Patentverwaltung Permanent magnetic loudspeaker with a magnet system arranged inside the basket

Families Citing this family (10)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US2535757A (en) * 1946-06-25 1950-12-26 John J Root Peripherally driven electroacoustical transducer
US2666980A (en) * 1947-04-02 1954-01-26 Rola Company Inc Method of making loud-speakers
GB686743A (en) * 1947-08-27 1953-01-28 Magnavox Australia Pty Ltd Improvements in loud speakers
US2566604A (en) * 1948-03-16 1951-09-04 William C Eaves Electrodynamic loud-speaker assembly
US2551447A (en) * 1948-05-20 1951-05-01 Operadio Mfg Co Electrodynamic speaker
US2523802A (en) * 1949-08-06 1950-09-26 Joseph D Zimmerman Electrodynamic pillow-type loudspeaker
US3109072A (en) * 1960-09-26 1963-10-29 Utah Radio Products Corp Loud-speaker
DE1284461B (en) * 1965-09-13 1968-12-05 Siemens Ag Pressure-electrical converter
US4029910A (en) * 1974-05-01 1977-06-14 Allison Acoustics, Inc. Wide dispersion loudspeaker with flexing diaphragm
DE4225854A1 (en) * 1992-08-05 1994-02-10 Nokia Deutschland Gmbh Low depth medium or woofer loudspeaker - has magnetic system fitted in acoustic funnel of diaphragm

Family Cites Families (8)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US1970038A (en) * 1929-06-15 1934-08-14 Temple Corp Sound reproducing device
NL32218C (en) * 1930-05-06
US1941476A (en) * 1930-06-27 1934-01-02 Jensen Radio Mfg Company Method of making sound reproducers
US1952357A (en) * 1930-09-12 1934-03-27 Columbia Graphophone Co Ltd Electromechanical device
US1820585A (en) * 1931-02-20 1931-08-25 Magnavox Co Loud speaker
US1941477A (en) * 1931-07-25 1934-01-02 Jensen Radio Mfg Company Method of making magnetic sound reproducers
US1886816A (en) * 1931-07-25 1932-11-08 Jensen Radio Mfg Co Magnetic sound reproducer
US2186576A (en) * 1936-04-17 1940-01-09 Cinaudagraph Corp Reproducer

Cited By (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
DE1053031B (en) * 1955-03-05 1959-03-19 Georges Gogny Electrodynamic loudspeaker
DE1107277B (en) * 1959-04-25 1961-05-25 Philips Patentverwaltung Permanent magnetic loudspeaker with a magnet system arranged inside the basket

Also Published As

Publication number Publication date
US2423037A (en) 1947-06-24

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