GB204546A - Improvements in and relating to radio telephonic receivers - Google Patents

Improvements in and relating to radio telephonic receivers

Info

Publication number
GB204546A
GB204546A GB2801422A GB2801422A GB204546A GB 204546 A GB204546 A GB 204546A GB 2801422 A GB2801422 A GB 2801422A GB 2801422 A GB2801422 A GB 2801422A GB 204546 A GB204546 A GB 204546A
Authority
GB
United Kingdom
Prior art keywords
pieces
clamping
diaphragm
ring
magnet
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
GB2801422A
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.)
Charles Cory & Son Inc
Original Assignee
Charles Cory & Son Inc
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
Priority to US586456A priority Critical patent/US1560779A/en
Application filed by Charles Cory & Son Inc filed Critical Charles Cory & Son Inc
Priority to GB2801422A priority patent/GB204546A/en
Publication of GB204546A publication Critical patent/GB204546A/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
    • H04R13/00—Transducers having an acoustic diaphragm of magnetisable material directly co-acting with electromagnet
    • H04R13/02—Telephone receivers

Landscapes

  • Physics & Mathematics (AREA)
  • Electromagnetism (AREA)
  • Engineering & Computer Science (AREA)
  • Acoustics & Sound (AREA)
  • Signal Processing (AREA)
  • Telephone Set Structure (AREA)

Abstract

204,546. Alexander, A. E., (Cory & Son, Inc., C.). Oct. 16, 1922. Magnetic instruments. - In a loud-speaking telephone receiver in which an electromagnet unit and a diaphragm are relatively movable, the electromagnet unit is carried by a massive permanent magnet. The L-shaped core-pieces 25, 26 are mounted on the pole-pieces 23, 24 of the weighting magnet 22, a non-magnetic clamping ring 29 in conjunction with non-magnetic clamping-pieces 30, 31 being provided for clamping the core-pieces to the magnet 22. The diaphragm is made adjustable by clamping it between the cover 13 and a ring 16 which screws into the case 12. The diaphragm may be held by means of a set screw 20 which engages with a depending flange 21 of the ring 16.
GB2801422A 1922-09-06 1922-10-16 Improvements in and relating to radio telephonic receivers Expired GB204546A (en)

Priority Applications (2)

Application Number Priority Date Filing Date Title
US586456A US1560779A (en) 1922-09-06 1922-09-06 Radio loud-speaking receiver
GB2801422A GB204546A (en) 1922-10-16 1922-10-16 Improvements in and relating to radio telephonic receivers

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
GB2801422A GB204546A (en) 1922-10-16 1922-10-16 Improvements in and relating to radio telephonic receivers

Publications (1)

Publication Number Publication Date
GB204546A true GB204546A (en) 1923-10-04

Family

ID=10268872

Family Applications (1)

Application Number Title Priority Date Filing Date
GB2801422A Expired GB204546A (en) 1922-09-06 1922-10-16 Improvements in and relating to radio telephonic receivers

Country Status (1)

Country Link
GB (1) GB204546A (en)

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