GB422299A - Improvements in apparatus such as loud speakers for converting electrical oscillations into mechanical oscillations - Google Patents

Improvements in apparatus such as loud speakers for converting electrical oscillations into mechanical oscillations

Info

Publication number
GB422299A
GB422299A GB3060833A GB3060833A GB422299A GB 422299 A GB422299 A GB 422299A GB 3060833 A GB3060833 A GB 3060833A GB 3060833 A GB3060833 A GB 3060833A GB 422299 A GB422299 A GB 422299A
Authority
GB
United Kingdom
Prior art keywords
pressure
oscillations
force
loud
occupied
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
GB3060833A
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.)
General Electric Co PLC
Original Assignee
General Electric Co 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 General Electric Co PLC filed Critical General Electric Co PLC
Priority to GB3060833A priority Critical patent/GB422299A/en
Publication of GB422299A publication Critical patent/GB422299A/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
    • H04R19/00—Electrostatic transducers
    • H04R19/02—Loudspeakers

Landscapes

  • Physics & Mathematics (AREA)
  • Engineering & Computer Science (AREA)
  • Acoustics & Sound (AREA)
  • Signal Processing (AREA)
  • Electrostatic, Electromagnetic, Magneto- Strictive, And Variable-Resistance Transducers (AREA)

Abstract

422,299. Loud-speakers. GENERAL ELECTRIC CO., Ltd., Magnet House, Kingsway, London, and OLIVER, D. A., c /o General Electric Co., Wembley, Middlesex. Nov. 3, 1933, No. 30608. [Class 40 (iv)] Relates to an electrostatic loud-speaker of the type in which a constant polarizing voltage is maintained between the two electrodes during operation and in which the moving electrode is so flexible that it would be greatly deformed by the force of mutual attraction arising from the polarizing voltage unless that force were opposed by another force. According to the invention, all that part of the space between the two electrodes which is not occupied by solid dielectric is occupied by fluid whose pressure and whose dielectric strength are both greater than that of air at atmospheric pressure. The fluid is preferably air at a pressure substantially exceeding atmospheric. If desired, a stop may be provided outside the moving electrode against which the latter can rest when the polarizing field is not applied and the pressure of the medium is uncompensated. Specification 139,497, [Class 40 (iv)], is referred to.
GB3060833A 1933-11-03 1933-11-03 Improvements in apparatus such as loud speakers for converting electrical oscillations into mechanical oscillations Expired GB422299A (en)

Priority Applications (1)

Application Number Priority Date Filing Date Title
GB3060833A GB422299A (en) 1933-11-03 1933-11-03 Improvements in apparatus such as loud speakers for converting electrical oscillations into mechanical oscillations

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
GB3060833A GB422299A (en) 1933-11-03 1933-11-03 Improvements in apparatus such as loud speakers for converting electrical oscillations into mechanical oscillations

Publications (1)

Publication Number Publication Date
GB422299A true GB422299A (en) 1935-01-09

Family

ID=10310318

Family Applications (1)

Application Number Title Priority Date Filing Date
GB3060833A Expired GB422299A (en) 1933-11-03 1933-11-03 Improvements in apparatus such as loud speakers for converting electrical oscillations into mechanical oscillations

Country Status (1)

Country Link
GB (1) GB422299A (en)

Cited By (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
FR2443181A1 (en) * 1978-11-28 1980-06-27 Sony Corp ELECTROSTATIC SPEAKER

Cited By (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
FR2443181A1 (en) * 1978-11-28 1980-06-27 Sony Corp ELECTROSTATIC SPEAKER

Similar Documents

Publication Publication Date Title
GB1033001A (en) Electroacoustic transducers
GB1504971A (en) Electrostatic type electroacoustic transducer
US1645282A (en) Loud-speaking telephone
GB422299A (en) Improvements in apparatus such as loud speakers for converting electrical oscillations into mechanical oscillations
US2093664A (en) Acoustic device
GB551000A (en) Improvements in or relating to piezo-electric units
GB348573A (en) Improvements relating to electrostatic loud-speakers
US1732427A (en) Electric pick-up device
US1223496A (en) Electrostatic telephone system.
US991304A (en) Means for reproducing electrical variations.
GB894900A (en) Improvements in or relating to electronic apparatus incorporating electrostatic loudspeakers
US1550724A (en) Public-address system
US1552590A (en) Acoustical and for deaf persons
GB422724A (en) Improvements in loudspeakers
US658301A (en) Telephone-relay.
US1982965A (en) Radio reception
US2169744A (en) Sound-reproducing system
US1089534A (en) Differential-microphone repeater.
GB387127A (en) Improvements in loud-speakers
GB1296137A (en)
US756437A (en) Telephone.
US875156A (en) Telephone-transmitter.
GB1440377A (en) Flameproof enclosures for electrical devices
GB250931A (en) Improvements in and relating to sound-reproducing apparatus, such as loud speakers
US1737872A (en) Arrangement to protect capacitive loud-speakers against puncture