GB712285A - Improvements in or relating to apparatus for playing gramophone records - Google Patents

Improvements in or relating to apparatus for playing gramophone records

Info

Publication number
GB712285A
GB712285A GB2619252A GB2619252A GB712285A GB 712285 A GB712285 A GB 712285A GB 2619252 A GB2619252 A GB 2619252A GB 2619252 A GB2619252 A GB 2619252A GB 712285 A GB712285 A GB 712285A
Authority
GB
United Kingdom
Prior art keywords
turntable
centering member
diameter part
relating
oct
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
GB2619252A
Inventor
Edwin Malcolm Payne
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.)
EMI Ltd
Electrical and Musical Industries Ltd
Original Assignee
EMI Ltd
Electrical and Musical Industries 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 EMI Ltd, Electrical and Musical Industries Ltd filed Critical EMI Ltd
Priority to GB2619252A priority Critical patent/GB712285A/en
Priority claimed from GB2430151A external-priority patent/GB712256A/en
Publication of GB712285A publication Critical patent/GB712285A/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
    • G11B17/00—Guiding record carriers not specifically of filamentary or web form, or of supports therefor
    • G11B17/02—Details
    • G11B17/022—Positioning or locking of single discs
    • G11B17/028—Positioning or locking of single discs of discs rotating during transducing operation
    • G11B17/0281—Positioning or locking of single discs of discs rotating during transducing operation by an adapter enabling the centre-pin to receive carriers with large centre hole

Landscapes

  • Holding Or Fastening Of Disk On Rotational Shaft (AREA)
  • A Measuring Device Byusing Mechanical Method (AREA)

Abstract

712,285. Gramophone turntables. ELECTRIC & MUSICAL INDUSTRIES, Ltd. Oct. 20, 1952 [Oct. 18, 1951], No. 26192/52. Divided out of 712,256. Class 40 (2) A gramophone turntable is provided with a reversible centering member for selective engagement of records with different sized centre holes. In the embodiment shown in Figs. 1 and 2, the centering member rests in a socket 18 of a turntable spindle 14, and has a small diameter part 20 for locating a record 26, Fig. 1, with the standard small size hole, and a large diameter part 21 for locating a record 27, Fig. 2, with a large diameter hole. In the alternative embodiment, Figs. 3 and 4, the centering member is located by its larger diameter part 21 in a cylindrical recess 12 in the turntable.
GB2619252A 1951-10-18 1951-10-18 Improvements in or relating to apparatus for playing gramophone records Expired GB712285A (en)

Priority Applications (1)

Application Number Priority Date Filing Date Title
GB2619252A GB712285A (en) 1951-10-18 1951-10-18 Improvements in or relating to apparatus for playing gramophone records

Applications Claiming Priority (2)

Application Number Priority Date Filing Date Title
GB2430151A GB712256A (en) 1951-10-18 1951-10-18 Improvements in or relating to apparatus for playing gramophone records
GB2619252A GB712285A (en) 1951-10-18 1951-10-18 Improvements in or relating to apparatus for playing gramophone records

Publications (1)

Publication Number Publication Date
GB712285A true GB712285A (en) 1954-07-21

Family

ID=26257042

Family Applications (1)

Application Number Title Priority Date Filing Date
GB2619252A Expired GB712285A (en) 1951-10-18 1951-10-18 Improvements in or relating to apparatus for playing gramophone records

Country Status (1)

Country Link
GB (1) GB712285A (en)

Cited By (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US3210083A (en) * 1963-05-21 1965-10-05 Westinghouse Electric Corp Phonograph record playing device
US3241840A (en) * 1963-05-21 1966-03-22 Vm Corp Record centering means for record player turntable

Cited By (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US3210083A (en) * 1963-05-21 1965-10-05 Westinghouse Electric Corp Phonograph record playing device
US3241840A (en) * 1963-05-21 1966-03-22 Vm Corp Record centering means for record player turntable

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