GB625013A - Improvements in or relating to acoustic instruments - Google Patents

Improvements in or relating to acoustic instruments

Info

Publication number
GB625013A
GB625013A GB33460/45A GB3346045A GB625013A GB 625013 A GB625013 A GB 625013A GB 33460/45 A GB33460/45 A GB 33460/45A GB 3346045 A GB3346045 A GB 3346045A GB 625013 A GB625013 A GB 625013A
Authority
GB
United Kingdom
Prior art keywords
ribbon
armature
gap
secured
metal foil
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
GB33460/45A
Other languages
English (en)
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.)
STC PLC
Original Assignee
Standard Telephone and Cables PLC
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 Standard Telephone and Cables PLC filed Critical Standard Telephone and Cables PLC
Publication of GB625013A publication Critical patent/GB625013A/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
    • H04R9/02—Details
    • H04R9/04—Construction, mounting, or centering of coil
    • H04R9/046—Construction
    • H04R9/047—Construction in which the windings of the moving coil lay in the same plane
    • H04R9/048—Construction in which the windings of the moving coil lay in the same plane of the ribbon type
    • H—ELECTRICITY
    • H04—ELECTRIC COMMUNICATION TECHNIQUE
    • H04R—LOUDSPEAKERS, MICROPHONES, GRAMOPHONE PICK-UPS OR LIKE ACOUSTIC ELECTROMECHANICAL TRANSDUCERS; DEAF-AID SETS; PUBLIC ADDRESS SYSTEMS
    • H04R7/00—Diaphragms for electromechanical transducers; Cones
    • H04R7/02—Diaphragms for electromechanical transducers; Cones characterised by the construction
    • 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
    • H04R9/08—Microphones

Landscapes

  • Engineering & Computer Science (AREA)
  • Physics & Mathematics (AREA)
  • Acoustics & Sound (AREA)
  • Signal Processing (AREA)
  • Multimedia (AREA)
  • Audible-Bandwidth Dynamoelectric Transducers Other Than Pickups (AREA)
  • Diaphragms For Electromechanical Transducers (AREA)
GB33460/45A 1945-12-11 1945-12-11 Improvements in or relating to acoustic instruments Expired GB625013A (en)

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
GB264459X 1945-12-11

Publications (1)

Publication Number Publication Date
GB625013A true GB625013A (en) 1949-06-21

Family

ID=10243722

Family Applications (1)

Application Number Title Priority Date Filing Date
GB33460/45A Expired GB625013A (en) 1945-12-11 1945-12-11 Improvements in or relating to acoustic instruments

Country Status (6)

Country Link
US (1) US2510079A (enrdf_load_stackoverflow)
BE (1) BE472060A (enrdf_load_stackoverflow)
CH (1) CH264459A (enrdf_load_stackoverflow)
ES (1) ES177013A1 (enrdf_load_stackoverflow)
FR (1) FR936879A (enrdf_load_stackoverflow)
GB (1) GB625013A (enrdf_load_stackoverflow)

Cited By (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
GB2207833A (en) * 1987-08-05 1989-02-08 Advanced Acoustics Limited Microphone assembly

Family Cites Families (7)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
GB160223A (en) * 1919-11-18 1921-03-18 Adrian Francis Sykes Improvements in telephonic and like apparatus
US1902643A (en) * 1930-10-30 1933-03-21 Westinghouse Electric & Mfg Co Electrical translating device
US2106224A (en) * 1933-11-21 1938-01-25 Rca Corp Device for transforming acoustical energy into electrical energy
US2164157A (en) * 1936-07-11 1939-06-27 Electrical Res Prod Inc Acoustic device
US2141420A (en) * 1936-07-28 1938-12-27 Bell Telephone Labor Inc Acoustic device
US2183209A (en) * 1936-09-30 1939-12-12 Rca Corp Electroacoustical apparatus
GB511034A (en) * 1937-12-31 1939-07-31 Henry John Houlgate Improvements in and relating to electric acoustic devices

Cited By (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
GB2207833A (en) * 1987-08-05 1989-02-08 Advanced Acoustics Limited Microphone assembly
GB2207833B (en) * 1987-08-05 1990-10-31 Advanced Acoustics Limited Microphone assembly

Also Published As

Publication number Publication date
FR936879A (fr) 1948-08-02
BE472060A (enrdf_load_stackoverflow)
CH264459A (de) 1949-10-15
US2510079A (en) 1950-06-06
ES177013A1 (es) 1947-04-16

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