IE781537L - Disk file - Google Patents
Disk fileInfo
- Publication number
- IE781537L IE781537L IE781537A IE153778A IE781537L IE 781537 L IE781537 L IE 781537L IE 781537 A IE781537 A IE 781537A IE 153778 A IE153778 A IE 153778A IE 781537 L IE781537 L IE 781537L
- Authority
- IE
- Ireland
- Prior art keywords
- base
- disk
- file
- spindle assembly
- lie
- Prior art date
Links
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
- G11B5/54—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 into or out of its operative position or across tracks
-
- 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
- G11B17/22—Guiding record carriers not specifically of filamentary or web form, or of supports therefor from random access magazine of disc records
- G11B17/30—Guiding record carriers not specifically of filamentary or web form, or of supports therefor from random access magazine of disc records wherein the playing unit is moved according to the location of the selected record
Landscapes
- Moving Of Heads (AREA)
- Packaging Of Annular Or Rod-Shaped Articles, Wearing Apparel, Cassettes, Or The Like (AREA)
Abstract
A disk file of the accessing head type has a disk/spindle assembly supported by and within an enclosure wail base, enclosing the assembly about its axis of rotation. The disk/spindle assembly centre of gravity is located on the neutral plane of the base. Actuators for moving the read/write heads of the file are predominantly supported by land lie within the enclosure wall base so that their centres of force lie as close as possible to the neutral plane. This file structure minimises both dynamic and static off-track error resulting from out-of-plane bending of the base due to actuator reaction forces or thermal effects. <IMAGE>
[GB2005454A]
Applications Claiming Priority (1)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
US83834677A | 1977-09-30 | 1977-09-30 |
Publications (2)
Publication Number | Publication Date |
---|---|
IE781537L true IE781537L (en) | 1979-03-30 |
IE47039B1 IE47039B1 (en) | 1983-11-30 |
Family
ID=25276871
Family Applications (1)
Application Number | Title | Priority Date | Filing Date |
---|---|---|---|
IE1537/78A IE47039B1 (en) | 1977-09-30 | 1978-07-28 | Disk file with enclosure wall base |
Country Status (17)
Country | Link |
---|---|
JP (1) | JPS5455408A (en) |
AR (1) | AR221066A1 (en) |
BR (1) | BR7805656A (en) |
CA (1) | CA1109557A (en) |
CH (1) | CH629617A5 (en) |
DE (1) | DE2830828A1 (en) |
DK (1) | DK151739C (en) |
FI (1) | FI67141C (en) |
FR (1) | FR2404886A1 (en) |
GB (1) | GB2005454B (en) |
IE (1) | IE47039B1 (en) |
IT (1) | IT1174388B (en) |
NL (1) | NL7809812A (en) |
NO (1) | NO150255C (en) |
SE (1) | SE426112B (en) |
SU (1) | SU921475A3 (en) |
ZA (1) | ZA784308B (en) |
Families Citing this family (2)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
JPS57191871A (en) * | 1981-05-22 | 1982-11-25 | Hitachi Ltd | Magnetic disk storing device |
DE3581544D1 (en) * | 1985-10-31 | 1991-02-28 | Ibm | DISK STORAGE WITH A DRIVE ENGINE INTEGRATED INTO THE HUB OF THE DISK STACK. |
Family Cites Families (1)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
US3815150A (en) * | 1972-06-23 | 1974-06-04 | Memorex Corp | Flexible disc drive |
-
1978
- 1978-05-25 CA CA304,089A patent/CA1109557A/en not_active Expired
- 1978-07-12 FR FR7821340A patent/FR2404886A1/en active Granted
- 1978-07-13 DE DE19782830828 patent/DE2830828A1/en active Granted
- 1978-07-26 GB GB7831245A patent/GB2005454B/en not_active Expired
- 1978-07-28 IE IE1537/78A patent/IE47039B1/en not_active IP Right Cessation
- 1978-07-28 ZA ZA784308A patent/ZA784308B/en unknown
- 1978-08-10 CH CH851678A patent/CH629617A5/en not_active IP Right Cessation
- 1978-08-31 BR BR7805656A patent/BR7805656A/en unknown
- 1978-09-01 SE SE7809227A patent/SE426112B/en not_active IP Right Cessation
- 1978-09-07 IT IT27411/78A patent/IT1174388B/en active
- 1978-09-08 JP JP10987878A patent/JPS5455408A/en active Granted
- 1978-09-27 FI FI782943A patent/FI67141C/en not_active IP Right Cessation
- 1978-09-28 NO NO783288A patent/NO150255C/en unknown
- 1978-09-28 NL NL7809812A patent/NL7809812A/en not_active Application Discontinuation
- 1978-09-28 SU SU782670598A patent/SU921475A3/en active
- 1978-09-29 AR AR273894A patent/AR221066A1/en active
- 1978-09-29 DK DK432678A patent/DK151739C/en not_active IP Right Cessation
Also Published As
Publication number | Publication date |
---|---|
CH629617A5 (en) | 1982-04-30 |
DE2830828B2 (en) | 1980-05-08 |
CA1109557A (en) | 1981-09-22 |
DK151739C (en) | 1988-06-13 |
IT7827411A0 (en) | 1978-09-07 |
NO150255B (en) | 1984-06-04 |
SU921475A3 (en) | 1982-04-15 |
DK151739B (en) | 1987-12-28 |
FI67141C (en) | 1985-01-10 |
FR2404886B1 (en) | 1984-11-16 |
FI67141B (en) | 1984-09-28 |
NO150255C (en) | 1984-09-12 |
NL7809812A (en) | 1979-04-03 |
SE426112B (en) | 1982-12-06 |
NO783288L (en) | 1979-04-02 |
SE7809227L (en) | 1979-03-31 |
ZA784308B (en) | 1980-02-27 |
JPS5455408A (en) | 1979-05-02 |
DK432678A (en) | 1979-03-31 |
FI782943A (en) | 1979-03-31 |
DE2830828C3 (en) | 1981-01-15 |
GB2005454B (en) | 1982-02-10 |
GB2005454A (en) | 1979-04-19 |
AR221066A1 (en) | 1980-12-30 |
IE47039B1 (en) | 1983-11-30 |
IT1174388B (en) | 1987-07-01 |
JPS5756151B2 (en) | 1982-11-27 |
BR7805656A (en) | 1979-04-17 |
DE2830828A1 (en) | 1979-04-05 |
FR2404886A1 (en) | 1979-04-27 |
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Legal Events
Date | Code | Title | Description |
---|---|---|---|
MM4A | Patent lapsed |