GB705951A - Gramophone turntable variable speed friction driving device - Google Patents

Gramophone turntable variable speed friction driving device

Info

Publication number
GB705951A
GB705951A GB2237851A GB2237851A GB705951A GB 705951 A GB705951 A GB 705951A GB 2237851 A GB2237851 A GB 2237851A GB 2237851 A GB2237851 A GB 2237851A GB 705951 A GB705951 A GB 705951A
Authority
GB
United Kingdom
Prior art keywords
speed friction
variable speed
gramophone
driving device
friction driving
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
GB2237851A
Inventor
Harry Da Costa
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.)
Plessey Co Ltd
Original Assignee
Plessey Co 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 Plessey Co Ltd filed Critical Plessey Co Ltd
Priority to GB2237851A priority Critical patent/GB705951A/en
Publication of GB705951A publication Critical patent/GB705951A/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
    • G11B19/26—Speed-changing arrangements; Reversing arrangements; Drive-transfer means therefor
    • G11B19/265—Friction wheel drive

Landscapes

  • Friction Gearing (AREA)

Abstract

705,951. Variable-speed friction gearing for gramophones. PLESSEY CO., Ltd. Sept. 10. 1952 [Sept. 25. 1951], No. 22.378/51. Class 80 (2) A variable speed friction drive for a gramophone turntable 4 comprises an idler wheel 8 for transmitting drive from a tapered driving wheel 1, having a longitudinally curved sur-. face, to a surface of revolution 3, formed on the turntable or on a member keyed thereto, the idler being rotatable' in a frame pivoted in a support fixed to the base plate of the gramophone.
GB2237851A 1951-09-25 1951-09-25 Gramophone turntable variable speed friction driving device Expired GB705951A (en)

Priority Applications (1)

Application Number Priority Date Filing Date Title
GB2237851A GB705951A (en) 1951-09-25 1951-09-25 Gramophone turntable variable speed friction driving device

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
GB2237851A GB705951A (en) 1951-09-25 1951-09-25 Gramophone turntable variable speed friction driving device

Publications (1)

Publication Number Publication Date
GB705951A true GB705951A (en) 1954-03-24

Family

ID=10178410

Family Applications (1)

Application Number Title Priority Date Filing Date
GB2237851A Expired GB705951A (en) 1951-09-25 1951-09-25 Gramophone turntable variable speed friction driving device

Country Status (1)

Country Link
GB (1) GB705951A (en)

Cited By (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
DE1110440B (en) * 1960-01-19 1961-07-06 Hardi Dr Eberhard Priemer Chem Friction gear for recording and playback devices

Cited By (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
DE1110440B (en) * 1960-01-19 1961-07-06 Hardi Dr Eberhard Priemer Chem Friction gear for recording and playback devices

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