GB1208634A - Magnetic drum storage devices - Google Patents

Magnetic drum storage devices

Info

Publication number
GB1208634A
GB1208634A GB06149/68A GB1614968A GB1208634A GB 1208634 A GB1208634 A GB 1208634A GB 06149/68 A GB06149/68 A GB 06149/68A GB 1614968 A GB1614968 A GB 1614968A GB 1208634 A GB1208634 A GB 1208634A
Authority
GB
United Kingdom
Prior art keywords
head
drum
support
spring
extension
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
Application number
GB06149/68A
Other languages
English (en)
Inventor
Peter Charles Ridgway
Brian Charles Callcut
Current Assignee (The listed assignees may be inaccurate. Google has not performed a legal analysis and makes no representation or warranty as to the accuracy of the list.)
Unisys Group Services Ltd
Original Assignee
Sperry Rand Ltd
Priority date (The priority date 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 date listed.)
Filing date
Publication date
Application filed by Sperry Rand Ltd filed Critical Sperry Rand Ltd
Priority to GB06149/68A priority Critical patent/GB1208634A/en
Priority to SU1327532A priority patent/SU374653A1/ru
Priority to US810574A priority patent/US3634837A/en
Priority to SE04705/69A priority patent/SE359671B/xx
Priority to NL6905141A priority patent/NL6905141A/xx
Priority to DE19691917028 priority patent/DE1917028C3/de
Priority to FR6910195A priority patent/FR2005533A1/fr
Publication of GB1208634A publication Critical patent/GB1208634A/en
Expired legal-status Critical Current

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
    • G11B5/58—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
    • 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

Landscapes

  • Adjustment Of The Magnetic Head Position Track Following On Tapes (AREA)
  • Common Mechanisms (AREA)
  • Facsimile Scanning Arrangements (AREA)
GB06149/68A 1968-04-04 1968-04-04 Magnetic drum storage devices Expired GB1208634A (en)

Priority Applications (7)

Application Number Priority Date Filing Date Title
GB06149/68A GB1208634A (en) 1968-04-04 1968-04-04 Magnetic drum storage devices
SU1327532A SU374653A1 (enExample) 1968-04-04 1969-03-26
US810574A US3634837A (en) 1968-04-04 1969-03-26 Head mount for magnetic drum storage devices
SE04705/69A SE359671B (enExample) 1968-04-04 1969-04-02
NL6905141A NL6905141A (enExample) 1968-04-04 1969-04-02
DE19691917028 DE1917028C3 (de) 1968-04-04 1969-04-02 Halter für eine Luftkissen-Magnetkopfeinheit
FR6910195A FR2005533A1 (enExample) 1968-04-04 1969-04-03

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
GB06149/68A GB1208634A (en) 1968-04-04 1968-04-04 Magnetic drum storage devices

Publications (1)

Publication Number Publication Date
GB1208634A true GB1208634A (en) 1970-10-14

Family

ID=10072072

Family Applications (1)

Application Number Title Priority Date Filing Date
GB06149/68A Expired GB1208634A (en) 1968-04-04 1968-04-04 Magnetic drum storage devices

Country Status (6)

Country Link
US (1) US3634837A (enExample)
FR (1) FR2005533A1 (enExample)
GB (1) GB1208634A (enExample)
NL (1) NL6905141A (enExample)
SE (1) SE359671B (enExample)
SU (1) SU374653A1 (enExample)

Families Citing this family (3)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US4034412A (en) * 1971-01-19 1977-07-05 Davis-Smith Corporation Magnetic transducer apparatus with damped spring action
US3974896A (en) * 1975-07-21 1976-08-17 J. I. Case Company Fail-safe brake for a vehicle
US4630158A (en) * 1983-04-08 1986-12-16 Digital Equipment Corporation Vertically loading head module for magnetic disk drive

Family Cites Families (9)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US2862781A (en) * 1954-01-27 1958-12-02 Ibm Recording support devices
US3039102A (en) * 1957-01-24 1962-06-12 Lab For Electronics Inc Alignment techniques for recording heads assembly
NL260669A (enExample) * 1960-02-01
US3219988A (en) * 1961-02-01 1965-11-23 Bunker Ramo Magnetic recording device
US3170149A (en) * 1961-10-04 1965-02-16 Data Products Corp Transducer
NL125181C (enExample) * 1962-03-16
US3292169A (en) * 1962-12-12 1966-12-13 Sperry Rand Corp Magnetic head suspensions
NL294936A (enExample) * 1963-07-04
US3368210A (en) * 1964-12-02 1968-02-06 Burroughs Corp Mounting device for magnetic transducing head

Also Published As

Publication number Publication date
NL6905141A (enExample) 1969-10-07
DE1917028B2 (de) 1975-05-28
US3634837A (en) 1972-01-11
DE1917028A1 (de) 1969-10-23
SE359671B (enExample) 1973-09-03
FR2005533A1 (enExample) 1969-12-12
SU374653A1 (enExample) 1973-03-20

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Legal Events

Date Code Title Description
PS Patent sealed [section 19, patents act 1949]
732 Registration of transactions, instruments or events in the register (sect. 32/1977)
PCNP Patent ceased through non-payment of renewal fee