DE92255C - - Google Patents

Info

Publication number
DE92255C
DE92255C DENDAT92255D DE92255DA DE92255C DE 92255 C DE92255 C DE 92255C DE NDAT92255 D DENDAT92255 D DE NDAT92255D DE 92255D A DE92255D A DE 92255DA DE 92255 C DE92255 C DE 92255C
Authority
DE
Germany
Prior art keywords
coal
damping
liquids
effected
surround
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.)
Active
Application number
DENDAT92255D
Other languages
German (de)
Publication of DE92255C publication Critical patent/DE92255C/de
Active 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
    • H04R21/00—Variable-resistance transducers
    • H04R21/02—Microphones

Landscapes

  • Physics & Mathematics (AREA)
  • Engineering & Computer Science (AREA)
  • Acoustics & Sound (AREA)
  • Signal Processing (AREA)
  • Current-Collector Devices For Electrically Propelled Vehicles (AREA)

Description

BERLIN. GEDRUCKT IN DER REICHSDRUCKEREI.BERLIN. PRINTED IN THE REICHSDRUCKEREI.

Claims (1)

Patent-Anspruch:Patent claim: Kohlenwalzenmikrophon, bei welchem die Dämpfung durch Flüssigkeiten bewirkt wird, welche die leitenden Kohlentheile (Kohlenwalzen und Blöcke) umgeben.Coal cylinder microphone, in which the damping is effected by liquids, which surround the conductive coal parts (coal rolls and blocks). Hierzu 1 Blatt Zeichnungen.1 sheet of drawings.
DENDAT92255D Active DE92255C (en)

Publications (1)

Publication Number Publication Date
DE92255C true DE92255C (en)

Family

ID=363799

Family Applications (1)

Application Number Title Priority Date Filing Date
DENDAT92255D Active DE92255C (en)

Country Status (1)

Country Link
DE (1) DE92255C (en)

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