GB307794A - Improvements in or relating to processes for the manufacture of membranes for electrostatic loud speakers - Google Patents

Improvements in or relating to processes for the manufacture of membranes for electrostatic loud speakers

Info

Publication number
GB307794A
GB307794A GB7531/29A GB753129A GB307794A GB 307794 A GB307794 A GB 307794A GB 7531/29 A GB7531/29 A GB 7531/29A GB 753129 A GB753129 A GB 753129A GB 307794 A GB307794 A GB 307794A
Authority
GB
United Kingdom
Prior art keywords
membranes
relating
manufacture
processes
loud speakers
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
GB7531/29A
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.)
Individual
Original Assignee
Individual
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 Individual filed Critical Individual
Publication of GB307794A publication Critical patent/GB307794A/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
    • H04R19/00—Electrostatic transducers

Landscapes

  • Physics & Mathematics (AREA)
  • Engineering & Computer Science (AREA)
  • Acoustics & Sound (AREA)
  • Signal Processing (AREA)
  • Diaphragms For Electromechanical Transducers (AREA)
  • Electrostatic, Electromagnetic, Magneto- Strictive, And Variable-Resistance Transducers (AREA)
  • Audible-Bandwidth Dynamoelectric Transducers Other Than Pickups (AREA)

Abstract

307,794. Reisz, E. March 13, 1928, [Convention date]. Diaphragms.-The rubber or other diaphragm of an electrostatic loud-speaker, has a metallic foil electrode attached thereto by a film of vegetable oil, such as castor oil, which does not attack rubber, and does not resinify after a lapse of time.
GB7531/29A 1928-03-14 1929-03-07 Improvements in or relating to processes for the manufacture of membranes for electrostatic loud speakers Expired GB307794A (en)

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
DER74006D DE487450C (en) 1928-03-14 1928-03-14 Process for the production of the membrane of an electrostatic loudspeaker, which is expediently made of a metal foil glued to a thin rubber skin

Publications (1)

Publication Number Publication Date
GB307794A true GB307794A (en) 1929-11-28

Family

ID=6121527

Family Applications (1)

Application Number Title Priority Date Filing Date
GB7531/29A Expired GB307794A (en) 1928-03-14 1929-03-07 Improvements in or relating to processes for the manufacture of membranes for electrostatic loud speakers

Country Status (3)

Country Link
DE (1) DE487450C (en)
FR (1) FR671229A (en)
GB (1) GB307794A (en)

Also Published As

Publication number Publication date
FR671229A (en) 1929-12-10
DE487450C (en) 1929-12-06

Similar Documents

Publication Publication Date Title
GB563595A (en) Improvements relating to microphones
GB307794A (en) Improvements in or relating to processes for the manufacture of membranes for electrostatic loud speakers
GB223965A (en) Improved means for supporting the diaphragm of a telephone transmitter or receiver
GB301638A (en) Improvements in or relating to loud speakers
GB233008A (en) Improvements in telephone receivers and like instruments particularly for use in wireless receiving apparatus
GB256963A (en) Improvements in or relating to acoustic devices
GB248497A (en) Improvements in and relating to diaphragms for sound boxes
CA253963A (en) Means for supporting the diaphragm of telephone transmitters or receivers
CA262009A (en) Loud speaker diaphragm
GB237699A (en) Improvements in and relating to loud speakers and to electromagnetically vibrated diaphragms
CA219472A (en) Diaphragm for telephone transmitters
CA303681A (en) Diaphragm mounting for loud speakers
CA325710A (en) Loud speaker diaphragm
GB277908A (en) Improvements in or relating to carbon microphones
AU2380425A (en) Improved method of mounting acoustical diaphragms
CA248306A (en) Telephone diaphragm
GB321994A (en) Improvements in or relating to transmitters for telephone systems and the like
CA230249A (en) Phonograph diaphragm
AU1166823A (en) An improved diaphragm for sound reproduction
GB237798A (en) Improvements relating to diaphragms for telephones and the like
CA238755A (en) Loud speaking microphone
CA238492A (en) Diaphragm for sound reproducers
CA308277A (en) Acoustic diaphragm
CA362790A (en) Acoustic diaphragm
GB280410A (en) Improvements in or relating to electric sound-producing apparatus