GB748034A - Improvements in or relating to magnet units of moving-coil type loudspeakers - Google Patents

Improvements in or relating to magnet units of moving-coil type loudspeakers

Info

Publication number
GB748034A
GB748034A GB1436953A GB1436953A GB748034A GB 748034 A GB748034 A GB 748034A GB 1436953 A GB1436953 A GB 1436953A GB 1436953 A GB1436953 A GB 1436953A GB 748034 A GB748034 A GB 748034A
Authority
GB
United Kingdom
Prior art keywords
moving
relating
coil type
magnet units
type loudspeakers
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
GB1436953A
Inventor
Frederick Henry Brilliant
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.)
GOODMANS IND Ltd
Original Assignee
GOODMANS IND 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 GOODMANS IND Ltd filed Critical GOODMANS IND Ltd
Priority to GB1436953A priority Critical patent/GB748034A/en
Publication of GB748034A publication Critical patent/GB748034A/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
    • H04R9/025—Magnetic circuit

Landscapes

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

Abstract

748,034. Magnets. GOODMANS INDUSTRIES, Ltd. May 21, 1954 [May 21, 1953], No. 14369/53. Class 35. [Also in Group XXXIX] The rim portion of the casing 1 of a moving- coil loud-speaker is shrunk on to the pole plate 4. This may be effected either by heating the casing or by cooling the pole plate.
GB1436953A 1953-05-21 1953-05-21 Improvements in or relating to magnet units of moving-coil type loudspeakers Expired GB748034A (en)

Priority Applications (1)

Application Number Priority Date Filing Date Title
GB1436953A GB748034A (en) 1953-05-21 1953-05-21 Improvements in or relating to magnet units of moving-coil type loudspeakers

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
GB1436953A GB748034A (en) 1953-05-21 1953-05-21 Improvements in or relating to magnet units of moving-coil type loudspeakers

Publications (1)

Publication Number Publication Date
GB748034A true GB748034A (en) 1956-04-18

Family

ID=10039971

Family Applications (1)

Application Number Title Priority Date Filing Date
GB1436953A Expired GB748034A (en) 1953-05-21 1953-05-21 Improvements in or relating to magnet units of moving-coil type loudspeakers

Country Status (1)

Country Link
GB (1) GB748034A (en)

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