GB283213A - - Google Patents

Info

Publication number
GB283213A
GB283213A GB35/28A GB3528A GB283213A GB 283213 A GB283213 A GB 283213A GB 35/28 A GB35/28 A GB 35/28A GB 3528 A GB3528 A GB 3528A GB 283213 A GB283213 A GB 283213A
Authority
GB
United Kingdom
Prior art keywords
armature
cores
arms
secured
pole
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
GB35/28A
Other languages
English (en)
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.)
HOPKINS Corp
Original Assignee
HOPKINS Corp
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 HOPKINS Corp filed Critical HOPKINS Corp
Publication of GB283213A publication Critical patent/GB283213A/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)
  • Electromagnets (AREA)
  • Magnetic Treatment Devices (AREA)
GB35/28A 1927-01-07 1928-01-02 Expired GB283213A (fr)

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
US159552A US1782094A (en) 1927-01-07 1927-01-07 Electrical movement for loud-speakers

Publications (1)

Publication Number Publication Date
GB283213A true GB283213A (fr) 1928-09-20

Family

ID=22573025

Family Applications (1)

Application Number Title Priority Date Filing Date
GB35/28A Expired GB283213A (fr) 1927-01-07 1928-01-02

Country Status (5)

Country Link
US (1) US1782094A (fr)
BE (1) BE347742A (fr)
DE (1) DE500413C (fr)
FR (1) FR646686A (fr)
GB (1) GB283213A (fr)

Also Published As

Publication number Publication date
US1782094A (en) 1930-11-18
BE347742A (fr)
DE500413C (de) 1930-06-24
FR646686A (fr) 1928-11-14

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