GB687112A - Improvements relating to mechanisms for playing gramophone records - Google Patents

Improvements relating to mechanisms for playing gramophone records

Info

Publication number
GB687112A
GB687112A GB1158950A GB1158950A GB687112A GB 687112 A GB687112 A GB 687112A GB 1158950 A GB1158950 A GB 1158950A GB 1158950 A GB1158950 A GB 1158950A GB 687112 A GB687112 A GB 687112A
Authority
GB
United Kingdom
Prior art keywords
turntable
record
pinion
stylus
transducer
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
GB1158950A
Inventor
Clifford Metcalfe
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 GB1158950A priority Critical patent/GB687112A/en
Publication of GB687112A publication Critical patent/GB687112A/en
Expired legal-status Critical Current

Links

Classifications

    • G—PHYSICS
    • G03—PHOTOGRAPHY; CINEMATOGRAPHY; ANALOGOUS TECHNIQUES USING WAVES OTHER THAN OPTICAL WAVES; ELECTROGRAPHY; HOLOGRAPHY
    • G03B—APPARATUS OR ARRANGEMENTS FOR TAKING PHOTOGRAPHS OR FOR PROJECTING OR VIEWING THEM; APPARATUS OR ARRANGEMENTS EMPLOYING ANALOGOUS TECHNIQUES USING WAVES OTHER THAN OPTICAL WAVES; ACCESSORIES THEREFOR
    • G03B31/00—Associated working of cameras or projectors with sound-recording or sound-reproducing means
    • 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
    • G11B17/08—Guiding record carriers not specifically of filamentary or web form, or of supports therefor from consecutive-access magazine of disc records
    • G11B17/12—Guiding record carriers not specifically of filamentary or web form, or of supports therefor from consecutive-access magazine of disc records with axial transfer to the turntable from a stack with a vertical axis
    • G11B17/16—Guiding record carriers not specifically of filamentary or web form, or of supports therefor from consecutive-access magazine of disc records with axial transfer to the turntable from a stack with a vertical axis by mechanism in stationary centre post, e.g. with stepped post, using fingers on post

Landscapes

  • Physics & Mathematics (AREA)
  • General Physics & Mathematics (AREA)
  • Holding Or Fastening Of Disk On Rotational Shaft (AREA)

Abstract

687,112. Automatic gramophones. ELECTRIC & MUSICAL INDUSTRIES, Ltd. May 10, 1951 [May 10. 1950], No. 11589/50. Class 40 (ii). A mechanism for playing gramophone records comprises a record post 70 spaced from the turntable 29 and supporting a pile of records which are released one by one on to the locating spindle 34 of the turntable 29, and means for removing a record from the turntable comprising a frame 64. which is pivoted about an axis 66 so that when moved through an angle of about 30 degrees the record is lifted and slides into a receptacle 69. Means are provided for lifting the turntable from the position 29', in which the upper face of the record may be played by a stylus 62 of a transducer 60. to the position 29, in which the lower face of the record is played by a stylus 61 of the transducer 60. In the lower position 29<SP>1</SP> the turntable engages a rotary element 23. through the medium of serrations 28, and is driven clockwise, as viewed from above, by means of a disc 14 driven by a motor shaft 11 and jockey pulley 12. The turntable is raised to the upper position by a member 33 so that a pinion 38 engages another pinion 42 whereby the turntable is rotated in an opposite direction by means of pinion 41, shaft 46, pinions 40 and 35, and pins 36. Specification 688,134 is referred to.
GB1158950A 1950-05-10 1950-05-10 Improvements relating to mechanisms for playing gramophone records Expired GB687112A (en)

Priority Applications (1)

Application Number Priority Date Filing Date Title
GB1158950A GB687112A (en) 1950-05-10 1950-05-10 Improvements relating to mechanisms for playing gramophone records

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
GB1158950A GB687112A (en) 1950-05-10 1950-05-10 Improvements relating to mechanisms for playing gramophone records

Publications (1)

Publication Number Publication Date
GB687112A true GB687112A (en) 1953-02-04

Family

ID=9989013

Family Applications (1)

Application Number Title Priority Date Filing Date
GB1158950A Expired GB687112A (en) 1950-05-10 1950-05-10 Improvements relating to mechanisms for playing gramophone records

Country Status (1)

Country Link
GB (1) GB687112A (en)

Cited By (3)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US5594710A (en) * 1993-10-05 1997-01-14 Nakamichi Corporation Disc player with a disc-securing mechanism
GB2310075A (en) * 1996-02-10 1997-08-13 Uther Mahmud Audio turntable
US6359853B1 (en) * 1993-06-03 2002-03-19 Nakamichi Corporation Disk player with a secure disk-securing mechanism

Cited By (4)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US6359853B1 (en) * 1993-06-03 2002-03-19 Nakamichi Corporation Disk player with a secure disk-securing mechanism
US5594710A (en) * 1993-10-05 1997-01-14 Nakamichi Corporation Disc player with a disc-securing mechanism
US5777956A (en) * 1993-10-05 1998-07-07 Nakamichi Corporation Changer-type disc playback device
GB2310075A (en) * 1996-02-10 1997-08-13 Uther Mahmud Audio turntable

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