GB322275A - Improvements in or relating to sound reproducing devices - Google Patents

Improvements in or relating to sound reproducing devices

Info

Publication number
GB322275A
GB322275A GB2836128A GB2836128A GB322275A GB 322275 A GB322275 A GB 322275A GB 2836128 A GB2836128 A GB 2836128A GB 2836128 A GB2836128 A GB 2836128A GB 322275 A GB322275 A GB 322275A
Authority
GB
United Kingdom
Prior art keywords
solenoids
relating
sound reproducing
reproducing devices
armature
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
GB2836128A
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.)
EDWARD HENRY SUMNER
Original Assignee
EDWARD HENRY SUMNER
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 EDWARD HENRY SUMNER filed Critical EDWARD HENRY SUMNER
Priority to GB2836128A priority Critical patent/GB322275A/en
Publication of GB322275A publication Critical patent/GB322275A/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
    • H04R9/06—Loudspeakers
    • H04R9/063—Loudspeakers using a plurality of acoustic drivers
    • H—ELECTRICITY
    • H04—ELECTRIC COMMUNICATION TECHNIQUE
    • H04R—LOUDSPEAKERS, MICROPHONES, GRAMOPHONE PICK-UPS OR LIKE ACOUSTIC ELECTROMECHANICAL TRANSDUCERS; DEAF-AID SETS; PUBLIC ADDRESS SYSTEMS
    • H04R23/00—Transducers other than those covered by groups H04R9/00 - H04R21/00

Landscapes

  • Physics & Mathematics (AREA)
  • Engineering & Computer Science (AREA)
  • Acoustics & Sound (AREA)
  • Signal Processing (AREA)
  • Reciprocating, Oscillating Or Vibrating Motors (AREA)

Abstract

322,275. Sumner, E. H. Oct. 3, 1928. Magnetic instruments.-The reed or diaphragm C of a sound-reproducing device is provided with one or more armatures B which move longitudinally, in one or more solenoids A, solely under the dynamic influence exerted by the solenoids, i.e. the solenoids are not provided with iron cores or other magnetic parts between which and the armature attraction or repulsion might occur. A steady flux may be maintained by an auxiliary solenoid E, adjustable relative to the solenoid A, Fig. 2. The Provisional Specification states that a permanent or electromagnet acting upon the armature at either or both ends may be employed.
GB2836128A 1928-10-03 1928-10-03 Improvements in or relating to sound reproducing devices Expired GB322275A (en)

Priority Applications (1)

Application Number Priority Date Filing Date Title
GB2836128A GB322275A (en) 1928-10-03 1928-10-03 Improvements in or relating to sound reproducing devices

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
GB2836128A GB322275A (en) 1928-10-03 1928-10-03 Improvements in or relating to sound reproducing devices

Publications (1)

Publication Number Publication Date
GB322275A true GB322275A (en) 1929-12-05

Family

ID=10274437

Family Applications (1)

Application Number Title Priority Date Filing Date
GB2836128A Expired GB322275A (en) 1928-10-03 1928-10-03 Improvements in or relating to sound reproducing devices

Country Status (1)

Country Link
GB (1) GB322275A (en)

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