GB1424821A - Record player recirculatory memory - Google Patents

Record player recirculatory memory

Info

Publication number
GB1424821A
GB1424821A GB194773A GB194773A GB1424821A GB 1424821 A GB1424821 A GB 1424821A GB 194773 A GB194773 A GB 194773A GB 194773 A GB194773 A GB 194773A GB 1424821 A GB1424821 A GB 1424821A
Authority
GB
United Kingdom
Prior art keywords
pick
arm
speed
jan
recirculatory
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
GB194773A
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.)
Individual
Original Assignee
Individual
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 Individual filed Critical Individual
Publication of GB1424821A publication Critical patent/GB1424821A/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
    • G11B19/00—Driving, starting, stopping record carriers not specifically of filamentary or web form, or of supports therefor; Control thereof; Control of operating function ; Driving both disc and head
    • G11B19/20—Driving; Starting; Stopping; Control thereof
    • G11B19/24—Arrangements for providing constant relative speed between record carrier and head

Landscapes

  • Holding Or Fastening Of Disk On Rotational Shaft (AREA)
  • Optical Recording Or Reproduction (AREA)
  • Rotational Drive Of Disk (AREA)

Abstract

1424821 Linear tracking speed S KUDELSKI 15 Jan 1973 [31 Jan 1972] 1947/73 Heading G5R The rotational speed of turntable 2 is varied to provide a constant tracking speed, in response to the angular movement of pick-up arm 5. As the pick-up arm pivots clockwise during record play an arm 11, which carries a follower 10 urged by spring 13 into contact with cam 9 which rotates with the pick-up arm, also pivots clockwise and actuates via a rod 14 the movable part of a differential transformer 15 controlling the power supply to the turntable drive motor 4. The arrangement increases the motor speed as the pick-up moves towards the record centre.
GB194773A 1972-01-31 1973-01-15 Record player recirculatory memory Expired GB1424821A (en)

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
CH137672A CH541204A (en) 1972-01-31 1972-01-31 Tourne disques

Publications (1)

Publication Number Publication Date
GB1424821A true GB1424821A (en) 1976-02-11

Family

ID=4208975

Family Applications (1)

Application Number Title Priority Date Filing Date
GB194773A Expired GB1424821A (en) 1972-01-31 1973-01-15 Record player recirculatory memory

Country Status (8)

Country Link
JP (1) JPS4885102A (en)
CH (1) CH541204A (en)
DE (1) DE2301011A1 (en)
DK (1) DK573575A (en)
FR (1) FR2169925B1 (en)
GB (1) GB1424821A (en)
IT (1) IT976253B (en)
NL (1) NL7301257A (en)

Cited By (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
EP0018156A1 (en) * 1979-04-17 1980-10-29 BURROUGHS CORPORATION (a Delaware corporation) Recording and replay apparatus employing rotary media

Families Citing this family (3)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US4441178A (en) * 1981-02-02 1984-04-03 Nakamichi Corporation Method of correcting a position of a disk record on a turntable
JP2003061287A (en) * 2001-08-10 2003-02-28 Asmo Co Ltd Insulator and motor using the same
JP5478031B2 (en) 2008-05-23 2014-04-23 花王株式会社 Alkaline agent-containing particles

Family Cites Families (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US2505630A (en) * 1944-09-09 1950-04-25 Rca Corp Turntable speed control device

Cited By (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
EP0018156A1 (en) * 1979-04-17 1980-10-29 BURROUGHS CORPORATION (a Delaware corporation) Recording and replay apparatus employing rotary media

Also Published As

Publication number Publication date
IT976253B (en) 1974-08-20
DE2301011A1 (en) 1973-08-09
FR2169925B1 (en) 1978-09-08
CH541204A (en) 1973-08-31
DK573575A (en) 1975-12-17
JPS4885102A (en) 1973-11-12
NL7301257A (en) 1973-08-02
FR2169925A1 (en) 1973-09-14

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Legal Events

Date Code Title Description
PS Patent sealed
PCNP Patent ceased through non-payment of renewal fee