CH213942A - Elektromechanische Vorrichtung zur Übertragung von Schwingungen. - Google Patents
Elektromechanische Vorrichtung zur Übertragung von Schwingungen.Info
- Publication number
- CH213942A CH213942A CH213942DA CH213942A CH 213942 A CH213942 A CH 213942A CH 213942D A CH213942D A CH 213942DA CH 213942 A CH213942 A CH 213942A
- Authority
- CH
- Switzerland
- Prior art keywords
- electromechanical device
- transmitting vibrations
- vibrations
- transmitting
- electromechanical
- Prior art date
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
- H04R1/00—Details of transducers, loudspeakers or microphones
- H04R1/16—Mounting or connecting stylus to transducer with or without damping means
-
- 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
- H04R11/08—Gramophone pick-ups using a stylus; Recorders using a stylus
Landscapes
- Physics & Mathematics (AREA)
- Engineering & Computer Science (AREA)
- Acoustics & Sound (AREA)
- Signal Processing (AREA)
- Electromagnetism (AREA)
- Reciprocating, Oscillating Or Vibrating Motors (AREA)
- Holding Or Fastening Of Disk On Rotational Shaft (AREA)
Applications Claiming Priority (1)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
US263229A US2238863A (en) | 1939-03-21 | 1939-03-21 | Translation device for phonographs |
Publications (1)
Publication Number | Publication Date |
---|---|
CH213942A true CH213942A (de) | 1941-03-31 |
Family
ID=23000905
Family Applications (1)
Application Number | Title | Priority Date | Filing Date |
---|---|---|---|
CH213942D CH213942A (de) | 1939-03-21 | 1940-03-21 | Elektromechanische Vorrichtung zur Übertragung von Schwingungen. |
Country Status (4)
Country | Link |
---|---|
US (1) | US2238863A (de) |
CH (1) | CH213942A (de) |
FR (1) | FR865011A (de) |
GB (1) | GB539308A (de) |
Families Citing this family (4)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
US2508783A (en) * | 1945-02-16 | 1950-05-23 | Lionel B Cornwell | Electrical sound translating device |
US2485432A (en) * | 1945-11-28 | 1949-10-18 | Lionel B Cornwell | Magnetic phonograph pickup |
US2554696A (en) * | 1947-05-26 | 1951-05-29 | Henry H Bruderlin | Magnetic phonograph pickup head with two pairs of pole pieces |
US2496047A (en) * | 1947-06-18 | 1950-01-31 | Rca Corp | Art of recording and reproducing two-sided magnetic records |
-
1939
- 1939-03-21 US US263229A patent/US2238863A/en not_active Expired - Lifetime
-
1940
- 1940-03-19 GB GB5100/40A patent/GB539308A/en not_active Expired
- 1940-03-21 CH CH213942D patent/CH213942A/de unknown
- 1940-04-06 FR FR865011D patent/FR865011A/fr not_active Expired
Also Published As
Publication number | Publication date |
---|---|
FR865011A (fr) | 1941-05-12 |
GB539308A (en) | 1941-09-04 |
US2238863A (en) | 1941-04-15 |
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