DE2524784A1 - Zugriffsverfahren und -vorrichtung fuer stapel flexibler magnetspeicherplatten - Google Patents
Zugriffsverfahren und -vorrichtung fuer stapel flexibler magnetspeicherplattenInfo
- Publication number
- DE2524784A1 DE2524784A1 DE19752524784 DE2524784A DE2524784A1 DE 2524784 A1 DE2524784 A1 DE 2524784A1 DE 19752524784 DE19752524784 DE 19752524784 DE 2524784 A DE2524784 A DE 2524784A DE 2524784 A1 DE2524784 A1 DE 2524784A1
- Authority
- DE
- Germany
- Prior art keywords
- stack
- foils
- pressure
- spaces
- gas
- 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.)
- Withdrawn
Links
- 238000000034 method Methods 0.000 title claims description 23
- 230000015654 memory Effects 0.000 title description 7
- 239000011888 foil Substances 0.000 claims description 58
- 230000009471 action Effects 0.000 claims description 6
- 238000003860 storage Methods 0.000 claims description 6
- 230000015572 biosynthetic process Effects 0.000 claims description 3
- 238000005086 pumping Methods 0.000 claims description 2
- 230000007480 spreading Effects 0.000 description 8
- 238000003892 spreading Methods 0.000 description 8
- 238000009423 ventilation Methods 0.000 description 7
- 230000008569 process Effects 0.000 description 6
- 230000009467 reduction Effects 0.000 description 3
- 101100136648 Mus musculus Pign gene Proteins 0.000 description 2
- 230000008901 benefit Effects 0.000 description 2
- 230000008602 contraction Effects 0.000 description 2
- 230000008878 coupling Effects 0.000 description 2
- 238000010168 coupling process Methods 0.000 description 2
- 238000005859 coupling reaction Methods 0.000 description 2
- 230000006870 function Effects 0.000 description 2
- 239000000523 sample Substances 0.000 description 2
- 238000000926 separation method Methods 0.000 description 2
- 125000006850 spacer group Chemical group 0.000 description 2
- 239000000969 carrier Substances 0.000 description 1
- 238000006073 displacement reaction Methods 0.000 description 1
- 238000009826 distribution Methods 0.000 description 1
- UCNNJGDEJXIUCC-UHFFFAOYSA-L hydroxy(oxo)iron;iron Chemical compound [Fe].O[Fe]=O.O[Fe]=O UCNNJGDEJXIUCC-UHFFFAOYSA-L 0.000 description 1
- 238000003384 imaging method Methods 0.000 description 1
- 238000005461 lubrication Methods 0.000 description 1
- 230000007246 mechanism Effects 0.000 description 1
- 239000011148 porous material Substances 0.000 description 1
- 238000003825 pressing Methods 0.000 description 1
- 230000002269 spontaneous effect Effects 0.000 description 1
- 230000003068 static effect Effects 0.000 description 1
- 230000007704 transition Effects 0.000 description 1
- XLYOFNOQVPJJNP-UHFFFAOYSA-N water Substances O XLYOFNOQVPJJNP-UHFFFAOYSA-N 0.000 description 1
Classifications
-
- G—PHYSICS
- G11—INFORMATION STORAGE
- G11B—INFORMATION STORAGE BASED ON RELATIVE MOVEMENT BETWEEN RECORD CARRIER AND TRANSDUCER
- G11B5/00—Recording by magnetisation or demagnetisation of a record carrier; Reproducing by magnetic means; Record carriers therefor
- G11B5/48—Disposition or mounting of heads or head supports relative to record carriers ; arrangements of heads, e.g. for scanning the record carrier to increase the relative speed
- G11B5/58—Disposition or mounting of heads or head supports relative to record carriers ; arrangements of heads, e.g. for scanning the record carrier to increase the relative speed with provision for moving the head for the purpose of maintaining alignment of the head relative to the record carrier during transducing operation, e.g. to compensate for surface irregularities of the latter or for track following
- G11B5/60—Fluid-dynamic spacing of heads from record-carriers
- G11B5/6005—Specially adapted for spacing from a rotating disc using a fluid cushion
-
- 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
- G11B17/02—Details
- G11B17/021—Selecting or spacing of record carriers for introducing the heads
Landscapes
- Manufacturing Of Magnetic Record Carriers (AREA)
- Automatic Disk Changers (AREA)
- Recording Measured Values (AREA)
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| US05/484,830 US3936880A (en) | 1974-07-01 | 1974-07-01 | Bistable deflection separation of flexible disks |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| DE2524784A1 true DE2524784A1 (de) | 1976-01-22 |
Family
ID=23925795
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| DE19752524784 Withdrawn DE2524784A1 (de) | 1974-07-01 | 1975-06-04 | Zugriffsverfahren und -vorrichtung fuer stapel flexibler magnetspeicherplatten |
Country Status (8)
| Country | Link |
|---|---|
| US (1) | US3936880A (enExample) |
| JP (1) | JPS5211573B2 (enExample) |
| CA (1) | CA1068398A (enExample) |
| DE (1) | DE2524784A1 (enExample) |
| FR (1) | FR2277403A1 (enExample) |
| GB (1) | GB1454254A (enExample) |
| IT (1) | IT1038943B (enExample) |
| NL (1) | NL7507232A (enExample) |
Families Citing this family (18)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| US4011591A (en) * | 1975-11-04 | 1977-03-08 | International Business Machines Corporation | Internal division actuation of ventilated floppy disk stack |
| US4011590A (en) * | 1975-11-04 | 1977-03-08 | International Business Machines Corporation | Internal division actuation of ventilated floppy disk stack |
| US4019204A (en) * | 1975-11-19 | 1977-04-19 | International Business Machines Corporation | Fluidic transducer access opening in a stack of flexible record disks |
| US4051541A (en) * | 1975-12-08 | 1977-09-27 | International Business Machines Corporation | Access to floppy disk stack |
| US4191981A (en) * | 1975-12-19 | 1980-03-04 | International Business Machines Corporation | Record storage apparatus employing enhanced transducer positioning servomechanisms |
| JPS5296009A (en) * | 1976-02-07 | 1977-08-12 | Masaaki Kusano | Memory |
| US4030136A (en) * | 1976-02-13 | 1977-06-14 | International Business Machines Corporation | Flexible disk pack accessing apparatus and method |
| US4167029A (en) * | 1976-08-04 | 1979-09-04 | Burroughs Corporation | Jet distributor for end-wise pneumatic partitioning of disk pack |
| US4514778A (en) * | 1976-08-04 | 1985-04-30 | Burroughs Corporation | Partitionable pack with end plates |
| US4118746A (en) * | 1977-03-04 | 1978-10-03 | Burroughs Corporation | High performance floppy pack and associated system |
| US4185311A (en) * | 1977-03-21 | 1980-01-22 | Burroughs Corporation | Partition of high performance floppy pack and associated means |
| US4143408A (en) * | 1977-11-28 | 1979-03-06 | International Business Machines Corp. | External selector and internal controller for flexible disc stack |
| GB2011695B (en) * | 1977-12-23 | 1982-03-24 | Burroughs Corp | Flexible disc pack for end-wise partitioning and associated methods |
| GB2017378B (en) * | 1978-03-27 | 1982-06-23 | Burroughs Corp | Partitioning of flexible disc pack by end-applied air jet |
| US4164768A (en) * | 1978-09-01 | 1979-08-14 | International Business Machines Corporation | Dual stage flow controller for self-ventilating disk pack |
| US4208678A (en) * | 1978-10-02 | 1980-06-17 | International Business Machines Corporation | Stabilized rotation of flexible disk files |
| US4367547A (en) * | 1981-05-04 | 1983-01-04 | Wayne H. Coloney Co., Inc. | Apparatus for holding record disks by vacuum |
| US4707752A (en) * | 1982-12-02 | 1987-11-17 | Unisys Corp. | Spacer means on floppy disks and associated techniques |
Family Cites Families (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| FR1308059A (fr) * | 1961-09-22 | 1962-11-03 | Electronique & Automatisme Sa | Mémoire magnétique perfectionnée |
| NL6603388A (enExample) * | 1965-03-30 | 1966-10-03 | ||
| NL6812450A (enExample) * | 1968-08-31 | 1970-03-03 |
-
1974
- 1974-07-01 US US05/484,830 patent/US3936880A/en not_active Expired - Lifetime
-
1975
- 1975-03-25 FR FR7510346A patent/FR2277403A1/fr active Granted
- 1975-05-08 GB GB1932775A patent/GB1454254A/en not_active Expired
- 1975-05-23 CA CA227,708A patent/CA1068398A/en not_active Expired
- 1975-06-04 DE DE19752524784 patent/DE2524784A1/de not_active Withdrawn
- 1975-06-10 JP JP50069219A patent/JPS5211573B2/ja not_active Expired
- 1975-06-16 IT IT24383/75A patent/IT1038943B/it active
- 1975-06-18 NL NL7507232A patent/NL7507232A/xx not_active Application Discontinuation
Also Published As
| Publication number | Publication date |
|---|---|
| NL7507232A (nl) | 1976-01-05 |
| JPS519409A (enExample) | 1976-01-26 |
| FR2277403A1 (fr) | 1976-01-30 |
| FR2277403B1 (enExample) | 1979-03-30 |
| IT1038943B (it) | 1979-11-30 |
| GB1454254A (en) | 1976-11-03 |
| US3936880A (en) | 1976-02-03 |
| JPS5211573B2 (enExample) | 1977-03-31 |
| CA1068398A (en) | 1979-12-18 |
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Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| 8139 | Disposal/non-payment of the annual fee |