GB377833A - Improvements in loud speaker movements - Google Patents

Improvements in loud speaker movements

Info

Publication number
GB377833A
GB377833A GB2528131A GB2528131A GB377833A GB 377833 A GB377833 A GB 377833A GB 2528131 A GB2528131 A GB 2528131A GB 2528131 A GB2528131 A GB 2528131A GB 377833 A GB377833 A GB 377833A
Authority
GB
United Kingdom
Prior art keywords
armature
forming
core
base
plates
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
GB2528131A
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.)
Individual
Original Assignee
Individual
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 Individual filed Critical Individual
Priority to GB2528131A priority Critical patent/GB377833A/en
Publication of GB377833A publication Critical patent/GB377833A/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
    • H04R11/00—Transducers of moving-armature or moving-core type

Landscapes

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

Abstract

377,833. Loud-speakers. BURTON, C. F., Progress Works, Bernard Street, Walsall. Sept. 9, 1931, No. 25281. [Class 40 (iv).] Relates to loudspeaker movements of the vibrating reed type, in which a substantially rectangular magnetic circuit is provided, a permanent magnet forming the base, one side being formed as the electromagnet and core, and the armature forming a third side opposite the base. According to the invention, the armature is bent to form two parts at rightangles to one another, one of these parts being directly attached to the magnet base and forming the fourth side of the'magnetic circuit. In the construction shown, the armature 2 is an L-shaped sheet metal pressing, having the short limb 6, Fig. 5, tapering in width and secured by a flange 7 to the magnetic baseplate 1. The magnet core is made of two L-shaped pressed plates 8, placed back to back as shown in Fig. 4, the plates being locked together by a slotted plate 11 fitted thereon. The longer edges of the ends 8<1> of the'core plates lie parallel to the length of the limb 5 of the armature. Adjustment of the armature is made in known manner by means of a screw 14 acting on a spring 13.
GB2528131A 1931-09-09 1931-09-09 Improvements in loud speaker movements Expired GB377833A (en)

Priority Applications (1)

Application Number Priority Date Filing Date Title
GB2528131A GB377833A (en) 1931-09-09 1931-09-09 Improvements in loud speaker movements

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
GB2528131A GB377833A (en) 1931-09-09 1931-09-09 Improvements in loud speaker movements

Publications (1)

Publication Number Publication Date
GB377833A true GB377833A (en) 1932-08-04

Family

ID=10225169

Family Applications (1)

Application Number Title Priority Date Filing Date
GB2528131A Expired GB377833A (en) 1931-09-09 1931-09-09 Improvements in loud speaker movements

Country Status (1)

Country Link
GB (1) GB377833A (en)

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