GB381322A - Improvements in and relating to loud speakers - Google Patents

Improvements in and relating to loud speakers

Info

Publication number
GB381322A
GB381322A GB27027/31A GB2702731A GB381322A GB 381322 A GB381322 A GB 381322A GB 27027/31 A GB27027/31 A GB 27027/31A GB 2702731 A GB2702731 A GB 2702731A GB 381322 A GB381322 A GB 381322A
Authority
GB
United Kingdom
Prior art keywords
frame
magnet
loud
coil
secured
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
GB27027/31A
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.)
IDEAL WERKE AG
Original Assignee
IDEAL WERKE AG
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 IDEAL WERKE AG filed Critical IDEAL WERKE AG
Publication of GB381322A publication Critical patent/GB381322A/en
Expired legal-status Critical Current

Links

Classifications

    • G—PHYSICS
    • G01—MEASURING; TESTING
    • G01R—MEASURING ELECTRIC VARIABLES; MEASURING MAGNETIC VARIABLES
    • G01R22/00—Arrangements for measuring time integral of electric power or current, e.g. electricity meters
    • G01R22/02—Arrangements for measuring time integral of electric power or current, e.g. electricity meters by electrolytic methods
    • H—ELECTRICITY
    • H04—ELECTRIC COMMUNICATION TECHNIQUE
    • H04R—LOUDSPEAKERS, MICROPHONES, GRAMOPHONE PICK-UPS OR LIKE ACOUSTIC ELECTROMECHANICAL TRANSDUCERS; DEAF-AID SETS; PUBLIC ADDRESS SYSTEMS
    • H04R11/00—Transducers of moving-armature or moving-core type

Landscapes

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

Abstract

381,322. Loud - speakers. IDEAL WERKE AKT.-GES. FUR DRAHTLOSE TELEPHONIE, 97, Grosse Leegestrasse, Hohensch÷nhausen, Germany. Sept. 28, 1931, No. 27027. Convention date, July 28. [Class 40 (iv).] A loud-speaker magnet system comprises an armature 9 having one end clamped at 8 to the frame 1 and passing through a coil 6 so that its free end oscillates past the pole shoes 3, 4 of a magnet 2, the magnet and its pole shoes being secured to the frame by screws 15, 16, 17. The coil 6 is also secured to the frame at 7 and the leads 11 are connected with the coil at 12. The driving rod 5 passes through one of the magnet limbs. Flanges 14 on the frame serve to secure the latter to the loud-speaker chassis. Specification 378,244 is referred to.
GB27027/31A 1931-07-28 1931-09-28 Improvements in and relating to loud speakers Expired GB381322A (en)

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
DE381322X 1931-07-28

Publications (1)

Publication Number Publication Date
GB381322A true GB381322A (en) 1932-10-06

Family

ID=6352437

Family Applications (1)

Application Number Title Priority Date Filing Date
GB27027/31A Expired GB381322A (en) 1931-07-28 1931-09-28 Improvements in and relating to loud speakers

Country Status (3)

Country Link
BE (1) BE383018A (en)
FR (2) FR381322A (en)
GB (1) GB381322A (en)

Also Published As

Publication number Publication date
FR723894A (en) 1932-04-16
BE383018A (en) 1931-10-31
FR381322A (en) 1908-01-09

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