US2148225A - Sound record disk - Google Patents
Sound record disk Download PDFInfo
- Publication number
- US2148225A US2148225A US89641A US8964136A US2148225A US 2148225 A US2148225 A US 2148225A US 89641 A US89641 A US 89641A US 8964136 A US8964136 A US 8964136A US 2148225 A US2148225 A US 2148225A
- Authority
- US
- United States
- Prior art keywords
- record disk
- sound record
- sound
- disk
- recording
- 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 - Lifetime
Links
Images
Classifications
-
- G—PHYSICS
- G11—INFORMATION STORAGE
- G11B—INFORMATION STORAGE BASED ON RELATIVE MOVEMENT BETWEEN RECORD CARRIER AND TRANSDUCER
- G11B3/00—Recording by mechanical cutting, deforming or pressing, e.g. of grooves or pits; Reproducing by mechanical sensing; Record carriers therefor
- G11B3/68—Record carriers
- G11B3/70—Record carriers characterised by the selection of material or structure; Processes or apparatus specially adapted for manufacturing record carriers
-
- Y—GENERAL TAGGING OF NEW TECHNOLOGICAL DEVELOPMENTS; GENERAL TAGGING OF CROSS-SECTIONAL TECHNOLOGIES SPANNING OVER SEVERAL SECTIONS OF THE IPC; TECHNICAL SUBJECTS COVERED BY FORMER USPC CROSS-REFERENCE ART COLLECTIONS [XRACs] AND DIGESTS
- Y10—TECHNICAL SUBJECTS COVERED BY FORMER USPC
- Y10T—TECHNICAL SUBJECTS COVERED BY FORMER US CLASSIFICATION
- Y10T428/00—Stock material or miscellaneous articles
- Y10T428/24—Structurally defined web or sheet [e.g., overall dimension, etc.]
- Y10T428/24942—Structurally defined web or sheet [e.g., overall dimension, etc.] including components having same physical characteristic in differing degree
Landscapes
- Pinball Game Machines (AREA)
Description
Feb. 21, 1939.
o. ZECHA 2,148,225
SOUND RECORD DISK Filed July s, 1956 //v we)? ecu L7 p Patented Feb. 21, 1939 PATENT OFFICE 2,148,225 SOUND RECORD DISK Otto Zecha, Vienna, Austria Application July 8, 1936; Serial In Austria. September 17,
No. 89,641 1935 I 1 Claim. (Cl. 274-42) This invention relates to improvements in sound records.
When cutting sound record disks or the like while a sound groove which is too deep prevents the recording of the fine over- I To a foundation base for example of red colour there are anobteining satisfactory recording.
A. sectional view ofa record disk comprising layers.
What I claim isdisk for phonographic recording comprising A at least two superposed layers of difierent coloured
Applications Claiming Priority (1)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
AT2148225X | 1935-09-17 |
Publications (1)
Publication Number | Publication Date |
---|---|
US2148225A true US2148225A (en) | 1939-02-21 |
Family
ID=3689968
Family Applications (1)
Application Number | Title | Priority Date | Filing Date |
---|---|---|---|
US89641A Expired - Lifetime US2148225A (en) | 1935-09-17 | 1936-07-08 | Sound record disk |
Country Status (1)
Country | Link |
---|---|
US (1) | US2148225A (en) |
Cited By (2)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
US2563119A (en) * | 1948-03-03 | 1951-08-07 | Otis Pressure Control Inc | Recorder chart for oil or gas well recording instruments |
US3265396A (en) * | 1963-02-12 | 1966-08-09 | Gorman Harry | Laminated paper records |
-
1936
- 1936-07-08 US US89641A patent/US2148225A/en not_active Expired - Lifetime
Cited By (2)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
US2563119A (en) * | 1948-03-03 | 1951-08-07 | Otis Pressure Control Inc | Recorder chart for oil or gas well recording instruments |
US3265396A (en) * | 1963-02-12 | 1966-08-09 | Gorman Harry | Laminated paper records |
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