GB353262A - Improvements in or relating to diaphragms for sound producing instruments - Google Patents

Improvements in or relating to diaphragms for sound producing instruments

Info

Publication number
GB353262A
GB353262A GB22950/30A GB2295030A GB353262A GB 353262 A GB353262 A GB 353262A GB 22950/30 A GB22950/30 A GB 22950/30A GB 2295030 A GB2295030 A GB 2295030A GB 353262 A GB353262 A GB 353262A
Authority
GB
United Kingdom
Prior art keywords
diaphragm
flange
speech coil
diaphragms
road
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
GB22950/30A
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.)
OSCAR STANLEY BRIGINSHAW
Original Assignee
OSCAR STANLEY BRIGINSHAW
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 OSCAR STANLEY BRIGINSHAW filed Critical OSCAR STANLEY BRIGINSHAW
Priority to GB22950/30A priority Critical patent/GB353262A/en
Priority to US552737A priority patent/US1926187A/en
Publication of GB353262A publication Critical patent/GB353262A/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
    • H04R7/00—Diaphragms for electromechanical transducers; Cones
    • H04R7/02—Diaphragms for electromechanical transducers; Cones characterised by the construction
    • H04R7/12—Non-planar diaphragms or cones
    • H04R7/127—Non-planar diaphragms or cones dome-shaped
    • 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

Landscapes

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

Abstract

353,262. Diaphragms. YOUNG, L. 31A, Hereford Road, Acton, and BRIGINSHAW, O. S., 25, Brondesbury Road, Kilburn, both in London. July 30, 1930, No. 22950. [Class 40 (iv).] In a soundreproducing instrument of the type having a relatively small diaphragm and an acoustic horn, the diaphragm is formed in one or more pieces wholly or mainly of a cellulose derivative, such as celluloid or cellulose acetate, or of a synthetic resin or like synthetic material, such as those known under the registered Trade Marks Bakelite and Celastoid, and consists of a diaphragm portion proper, a carrying flange therefor, and a portion upon which the moving speech coil is directly mounted, the whole constituting a unitary structure. The diaphragm 7 has an outer flange portion 8, which is adapted to be clamped between the horn carrier 5 and the cap 3 of a pot magnet casing 1, and a cylindrical portion 9, on to which the speech coil is wound, the portion 9 and speech coil being located in the annular magnetic gap 4. The parts 7, 8. 9 of the diaphragm may be formed integrally as shown, or the part 7 may be attached by cement, dope, &c., to a separate member forming the flange 8 and cylinder 9, or to two separate members forming the flange and cylinder respectively.
GB22950/30A 1930-07-30 1930-07-30 Improvements in or relating to diaphragms for sound producing instruments Expired GB353262A (en)

Priority Applications (2)

Application Number Priority Date Filing Date Title
GB22950/30A GB353262A (en) 1930-07-30 1930-07-30 Improvements in or relating to diaphragms for sound producing instruments
US552737A US1926187A (en) 1930-07-30 1931-07-23 Diaphragm for sound producing instruments

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
GB22950/30A GB353262A (en) 1930-07-30 1930-07-30 Improvements in or relating to diaphragms for sound producing instruments

Publications (1)

Publication Number Publication Date
GB353262A true GB353262A (en) 1931-07-23

Family

ID=10187684

Family Applications (1)

Application Number Title Priority Date Filing Date
GB22950/30A Expired GB353262A (en) 1930-07-30 1930-07-30 Improvements in or relating to diaphragms for sound producing instruments

Country Status (2)

Country Link
US (1) US1926187A (en)
GB (1) GB353262A (en)

Families Citing this family (7)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US2538621A (en) * 1945-04-23 1951-01-16 Bell Telephone Labor Inc Electrodynamic transducer and connector therefor
US2537253A (en) * 1946-08-20 1951-01-09 Chris S Andersen Electrodynamic telephone receiver
DE1094304B (en) * 1956-01-11 1960-12-08 Peter Grassmann Electrodynamic loudspeaker with conical membrane
US3079471A (en) * 1961-03-01 1963-02-26 Ampex Loudspeaker
US3328537A (en) * 1964-01-09 1967-06-27 Hecht William High frequency sound translating device
US4367377A (en) * 1979-07-16 1983-01-04 Nippon Gakki Seizo K.K. Horn loudspeaker with particular suspension and lead wire passage
US4761817A (en) * 1986-01-27 1988-08-02 Harman International Industries, Incorporated Diaphragm structure for a transducer

Also Published As

Publication number Publication date
US1926187A (en) 1933-09-12

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