GB289804A - Improvements in or relating to magnet systems for converting electrical into acoustic oscillations and vice versa - Google Patents

Improvements in or relating to magnet systems for converting electrical into acoustic oscillations and vice versa

Info

Publication number
GB289804A
GB289804A GB11892/28A GB1189228A GB289804A GB 289804 A GB289804 A GB 289804A GB 11892/28 A GB11892/28 A GB 11892/28A GB 1189228 A GB1189228 A GB 1189228A GB 289804 A GB289804 A GB 289804A
Authority
GB
United Kingdom
Prior art keywords
armature
pole pieces
vice versa
converting electrical
windings
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
GB11892/28A
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.)
Koninklijke Philips NV
Original Assignee
Philips Gloeilampenfabrieken NV
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 Philips Gloeilampenfabrieken NV filed Critical Philips Gloeilampenfabrieken NV
Publication of GB289804A publication Critical patent/GB289804A/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)
  • Reciprocating, Oscillating Or Vibrating Motors (AREA)
GB11892/28A 1927-05-02 1928-04-23 Improvements in or relating to magnet systems for converting electrical into acoustic oscillations and vice versa Expired GB289804A (en)

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
NL289804X 1927-05-02

Publications (1)

Publication Number Publication Date
GB289804A true GB289804A (en) 1929-08-23

Family

ID=19782696

Family Applications (1)

Application Number Title Priority Date Filing Date
GB11892/28A Expired GB289804A (en) 1927-05-02 1928-04-23 Improvements in or relating to magnet systems for converting electrical into acoustic oscillations and vice versa

Country Status (3)

Country Link
BE (1) BE350790A (xx)
FR (1) FR653343A (xx)
GB (1) GB289804A (xx)

Families Citing this family (3)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
FR2915388B1 (fr) 2007-04-27 2010-12-24 Oreal Film hydrosoluble cosmetique
FR2977797B1 (fr) 2011-07-13 2014-01-17 Urgo Lab Utilisation cosmetique et/ou dermatologique de composes oligosaccharidiques pour la prevention et le traitement des vergetures
FR3026949A1 (fr) 2014-10-09 2016-04-15 Urgo Lab Composition cosmetique et/ou dermatologique pour la prevention et le traitement des varices sous cutanees

Also Published As

Publication number Publication date
BE350790A (xx)
FR653343A (fr) 1929-03-20

Similar Documents

Publication Publication Date Title
GB289804A (en) Improvements in or relating to magnet systems for converting electrical into acoustic oscillations and vice versa
GB446153A (en) Improvements in or relating to vibration translating devices
GB1236916A (en) Improvements relating to electro-magnetic tripping devices
US2507320A (en) Alternating current electrical instrument and electromagnet therefor
GB593336A (en) Improvements in magnetic circuit and coil arrangements for electric vibrators, relays and the like
GB752369A (en) Improvements in or relating to polarised electric relays
US2578924A (en) Inductive pickup device
US1624338A (en) Vania
ES223390U (es) Accionador magnetico con iman de retencion.
GB446135A (en) Improvements in and relating to electromagnetic time element devices
US2338957A (en) Electromagnetic control device
GB594862A (en) Improvement in electromagnetic vibratory interrupters
GB313406A (en) Method and apparatus for the electromagnetic reproduction of sound
GB838491A (en) Improvements in and relating to alternating current electric relays of the inductiontype
GB416574A (en) Improvements in and relating to electromagnetic vibratory devices for use in the electrical reproduction of sound
GB304347A (en) Improvements in or relating to magnet systems for converting electric oscillations into acoustic ones or vice versa
GB539773A (en) Means for varying the permeability of magnetic conductors for induction coils, transformers and the like
GB817110A (en) Improvements in or relating to magnetic damping devices
GB203974A (en) Improvements in or relating to electromagnetic receivers
GB640400A (en) Improvements in and relating to electric induction meters
GB454644A (en) Improvements in or relating to electro-magnets
GB506421A (en) Improvements in electro-dynamic loud-speakers
GB797932A (en) Improvements in electrical indicator instruments
GB558786A (en) Improvements in and relating to electromagnets
GB514709A (en) Improvements relating to electric relays