GB1393765A - Evaluation apparatus for evaluating diagram discs an arrangement for compensating electrostatic forces caused by friction - Google Patents
Evaluation apparatus for evaluating diagram discs an arrangement for compensating electrostatic forces caused by frictionInfo
- Publication number
- GB1393765A GB1393765A GB3183372A GB3183372A GB1393765A GB 1393765 A GB1393765 A GB 1393765A GB 3183372 A GB3183372 A GB 3183372A GB 3183372 A GB3183372 A GB 3183372A GB 1393765 A GB1393765 A GB 1393765A
- Authority
- GB
- United Kingdom
- Prior art keywords
- disc
- support
- electrostatic forces
- evaluating
- friction
- 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
Links
- 238000010586 diagram Methods 0.000 title 1
- 238000011156 evaluation Methods 0.000 title 1
Classifications
-
- G—PHYSICS
- G11—INFORMATION STORAGE
- G11B—INFORMATION STORAGE BASED ON RELATIVE MOVEMENT BETWEEN RECORD CARRIER AND TRANSDUCER
- G11B17/00—Guiding record carriers not specifically of filamentary or web form, or of supports therefor
- G11B17/32—Maintaining desired spacing between record carrier and head, e.g. by fluid-dynamic spacing
Landscapes
- Time Recorders, Dirve Recorders, Access Control (AREA)
- Holding Or Fastening Of Disk On Rotational Shaft (AREA)
- Recording Measured Values (AREA)
- Supporting Of Heads In Record-Carrier Devices (AREA)
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| DE19712134504 DE2134504B2 (de) | 1971-07-10 | 1971-07-10 | Anordnung zur kompensation der durch reibung verursachten elektrostatischen kraefte in einem auswertegeraet fuer diagrammscheiben |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| GB1393765A true GB1393765A (en) | 1975-05-14 |
Family
ID=5813274
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| GB3183372A Expired GB1393765A (en) | 1971-07-10 | 1972-07-06 | Evaluation apparatus for evaluating diagram discs an arrangement for compensating electrostatic forces caused by friction |
Country Status (5)
| Country | Link |
|---|---|
| US (1) | US3818506A (enExample) |
| JP (1) | JPS5149418B1 (enExample) |
| DE (1) | DE2134504B2 (enExample) |
| FR (1) | FR2145994A5 (enExample) |
| GB (1) | GB1393765A (enExample) |
Families Citing this family (6)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| FR2167258A5 (enExample) * | 1972-01-11 | 1973-08-24 | Thomson Csf | |
| US3927252A (en) * | 1974-04-02 | 1975-12-16 | Zenith Radio Corp | Biased video disc stabilizer system |
| US4316278A (en) * | 1979-12-13 | 1982-02-16 | Mcdonnell Douglas Corporation | System for reading or recording indicia on a flexible disc |
| GB2093254B (en) * | 1980-12-31 | 1985-07-03 | Sony Corp | Apparatus for driving flexible discs |
| JPS5910163U (ja) * | 1982-07-12 | 1984-01-23 | 株式会社東芝 | 可撓性記録媒体用パッド装置 |
| US4747006A (en) * | 1985-06-13 | 1988-05-24 | Mitsubishi Denki Kabushiki Kaisha | Magnetic head having fluid pressure means |
Family Cites Families (5)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| DE1065629B (enExample) * | 1954-01-25 | |||
| US3110889A (en) * | 1960-05-02 | 1963-11-12 | Lab For Electronics Inc | Magnetic disc storage device |
| US3178719A (en) * | 1961-07-20 | 1965-04-13 | Lab For Electronics Inc | Magnetic disc |
| US3405405A (en) * | 1965-08-11 | 1968-10-08 | Lab For Electronics Inc | Displaceable disc magnetic storage assembly |
| US3478341A (en) * | 1966-07-11 | 1969-11-11 | Ncr Co | Random access magnetic disc storage device with peripheral bearing means |
-
1971
- 1971-07-10 DE DE19712134504 patent/DE2134504B2/de active Granted
-
1972
- 1972-07-06 GB GB3183372A patent/GB1393765A/en not_active Expired
- 1972-07-07 US US00269562A patent/US3818506A/en not_active Expired - Lifetime
- 1972-07-10 FR FR7224920A patent/FR2145994A5/fr not_active Expired
- 1972-07-10 JP JP47068948A patent/JPS5149418B1/ja active Pending
Also Published As
| Publication number | Publication date |
|---|---|
| US3818506A (en) | 1974-06-18 |
| FR2145994A5 (enExample) | 1973-02-23 |
| JPS5149418B1 (enExample) | 1976-12-27 |
| DE2134504B2 (de) | 1977-09-08 |
| DE2134504C3 (enExample) | 1978-05-03 |
| DE2134504A1 (de) | 1973-01-25 |
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Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| PS | Patent sealed [section 19, patents act 1949] | ||
| PCNP | Patent ceased through non-payment of renewal fee |