FR692342A - Spring device for guiding the electro-dynamic coil of a loudspeaker - Google Patents

Spring device for guiding the electro-dynamic coil of a loudspeaker

Info

Publication number
FR692342A
FR692342A FR692342DA FR692342A FR 692342 A FR692342 A FR 692342A FR 692342D A FR692342D A FR 692342DA FR 692342 A FR692342 A FR 692342A
Authority
FR
France
Prior art keywords
loudspeaker
electro
guiding
spring device
dynamic coil
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
Other languages
French (fr)
Inventor
Clemen Jorgensen
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 filed Critical
Application granted granted Critical
Publication of FR692342A publication Critical patent/FR692342A/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

Landscapes

  • Physics & Mathematics (AREA)
  • Engineering & Computer Science (AREA)
  • Acoustics & Sound (AREA)
  • Signal Processing (AREA)
  • Audible-Bandwidth Dynamoelectric Transducers Other Than Pickups (AREA)
FR692342D 1929-03-22 1930-03-20 Spring device for guiding the electro-dynamic coil of a loudspeaker Expired FR692342A (en)

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
DK336196X 1929-03-22

Publications (1)

Publication Number Publication Date
FR692342A true FR692342A (en) 1930-11-04

Family

ID=8150604

Family Applications (1)

Application Number Title Priority Date Filing Date
FR692342D Expired FR692342A (en) 1929-03-22 1930-03-20 Spring device for guiding the electro-dynamic coil of a loudspeaker

Country Status (2)

Country Link
FR (1) FR692342A (en)
GB (1) GB336196A (en)

Also Published As

Publication number Publication date
GB336196A (en) 1930-10-09

Similar Documents

Publication Publication Date Title
FR692342A (en) Spring device for guiding the electro-dynamic coil of a loudspeaker
FR703457A (en) Upholstery spring cushions
FR664167A (en) Device for winding the spring of a phonograph movement
SU18347A1 (en) Device for putting the spools on the fly
FR680165A (en) Spring for mattresses and padding
FR646744A (en) Winding device for circular loom
FR626682A (en) Device for the simultaneous change of all the spools of a spinning machine
FR667228A (en) Device for winding the barrel of cinematographic apparatus, fitted with a spring movement
FR696868A (en) Device for iron
FR670256A (en) Advanced spring spindle device for braiding loom
FR684994A (en) Coil spring shaft coupling
FR696162A (en) Winding device for sound films
FR694459A (en) Independent reverse winding device for looms
FR700121A (en) Ring spring collector
FR665428A (en) Automatic winding device for double-piece pile looms
FR678581A (en) Attachment hook for coil spring
FR1131320A (en) Device for limiting the winding of a spring mechanism
FR638149A (en) Barrel spring winding indicator device
FR731983A (en) Device for reassembling spring motors
FR685628A (en) Spring pedal device
FR592927A (en) Winding device for cinematographic projection devices
FR691180A (en) Device for sound recording machines
FR585163A (en) Coil spring retainer
FR584370A (en) Friction damper device
FR728910A (en) Device for adjusting the compression or tension of a spring