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GB334830A - An improved stretching device, particularly applicable to thin phonographic discs - Google Patents

An improved stretching device, particularly applicable to thin phonographic discs

Info

Publication number
GB334830A
GB334830A GB21552/30A GB2155230A GB334830A GB 334830 A GB334830 A GB 334830A GB 21552/30 A GB21552/30 A GB 21552/30A GB 2155230 A GB2155230 A GB 2155230A GB 334830 A GB334830 A GB 334830A
Authority
GB
United Kingdom
Prior art keywords
ring
thin
discs
disc
stretching device
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
GB21552/30A
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 GB334830A publication Critical patent/GB334830A/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
    • G11B3/00—Recording by mechanical cutting, deforming or pressing, e.g. of grooves or pits; Reproducing by mechanical sensing; Record carriers therefor
    • G11B3/60—Turntables for record carriers
    • 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
    • G11B5/012—Recording on, or reproducing or erasing from, magnetic disks
    • G11B5/016—Recording on, or reproducing or erasing from, magnetic disks using magnetic foils

Landscapes

  • Holding Or Fastening Of Disk On Rotational Shaft (AREA)

Abstract

334,830. Penteado, A. A. June 12, 1929, [Convention date]. Divided on 334,670. Disc records.-An apparatus for stretching thin discs, particularly discs of viscose, or the material known by the Trade Mark "Cellophane," after softening to permit of recording sound thereon as described in Specification 334,670, comprises two rings b, c, Figs. 1 and 5, the ring c being arranged to be pressed over the ring b to engage and grip the overhanging edge of the disc laid thereon, and to be clamped by a screw e engaging lugs c<1>, c<2>. A groove b<1> is provided in the ring b to receive a knife point for cutting out the disc after recording.
GB21552/30A 1929-06-12 1929-07-24 An improved stretching device, particularly applicable to thin phonographic discs Expired GB334830A (en)

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
FR334830X 1929-06-12

Publications (1)

Publication Number Publication Date
GB334830A true GB334830A (en) 1930-09-11

Family

ID=8891202

Family Applications (1)

Application Number Title Priority Date Filing Date
GB21552/30A Expired GB334830A (en) 1929-06-12 1929-07-24 An improved stretching device, particularly applicable to thin phonographic discs

Country Status (1)

Country Link
GB (1) GB334830A (en)

Cited By (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
DE1246812B (en) * 1962-12-17 1967-08-10 Soemmerda Bueromaschwerk Magnetic storage

Cited By (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
DE1246812B (en) * 1962-12-17 1967-08-10 Soemmerda Bueromaschwerk Magnetic storage

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