GB884364A - Improvements in or relating to electrostatic loudspeakers - Google Patents

Improvements in or relating to electrostatic loudspeakers

Info

Publication number
GB884364A
GB884364A GB1405257A GB1405257A GB884364A GB 884364 A GB884364 A GB 884364A GB 1405257 A GB1405257 A GB 1405257A GB 1405257 A GB1405257 A GB 1405257A GB 884364 A GB884364 A GB 884364A
Authority
GB
United Kingdom
Prior art keywords
diaphragm
channel
insulating
coated
loud
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
GB1405257A
Inventor
Arthur Charles Young
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.)
ROLA CELESTION Ltd
Original Assignee
ROLA CELESTION 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 ROLA CELESTION Ltd filed Critical ROLA CELESTION Ltd
Priority to GB1405257A priority Critical patent/GB884364A/en
Publication of GB884364A publication Critical patent/GB884364A/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

Abstract

884,364. Loud-speakers. ROLA CELESTION Ltd. May 2, 1958 [May 2, 1957], No. 14052/57. Class 40 (4). In an electrostatic loud-speaker comprising a graphite-coated diaphragm 17 of insulating material such as polyvinyl chloride which is secured by screws 13 between sections 11, 12 of a circular or rectangular mounting frame 10, the diaphragm is adjustably tensioned by an insulating strip or rod 21 which depresses a portion of the diaphragm into a channel 19 when acted upon by spaced tensioning screws 24. Electrical connection between a lead 18 and the diaphragm is provided by a channel 14 lined with metal foil 15, the edge region of the diaphragm being inserted in this channel after being wrapped around a cardboard strip 16. The electrodes on either side of the diaphragm are formed of parallel metal rods 31 interconnected by a metal bus-bar 33, the assembly being coated with insulating material. Support is provided by spaced insulating cross-struts 35 which have a foam rubber layer in sounddamping contact with the diaphragm so as to break up its upsupported area and thereby increase the resonant frequency.
GB1405257A 1957-05-02 1957-05-02 Improvements in or relating to electrostatic loudspeakers Expired GB884364A (en)

Priority Applications (1)

Application Number Priority Date Filing Date Title
GB1405257A GB884364A (en) 1957-05-02 1957-05-02 Improvements in or relating to electrostatic loudspeakers

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
GB1405257A GB884364A (en) 1957-05-02 1957-05-02 Improvements in or relating to electrostatic loudspeakers

Publications (1)

Publication Number Publication Date
GB884364A true GB884364A (en) 1961-12-13

Family

ID=10034115

Family Applications (1)

Application Number Title Priority Date Filing Date
GB1405257A Expired GB884364A (en) 1957-05-02 1957-05-02 Improvements in or relating to electrostatic loudspeakers

Country Status (1)

Country Link
GB (1) GB884364A (en)

Cited By (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US4006317A (en) * 1975-02-14 1977-02-01 Freeman Miller L Electrostatic transducer and acoustic and electric signal integrator
WO1984001683A1 (en) * 1982-10-08 1984-04-26 Niels Martin Jensen Diaphragm stretching apparatus

Cited By (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US4006317A (en) * 1975-02-14 1977-02-01 Freeman Miller L Electrostatic transducer and acoustic and electric signal integrator
WO1984001683A1 (en) * 1982-10-08 1984-04-26 Niels Martin Jensen Diaphragm stretching apparatus

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