FR858513A - Improvements to mechanical exploration devices for sound recordings - Google Patents

Improvements to mechanical exploration devices for sound recordings

Info

Publication number
FR858513A
FR858513A FR858513DA FR858513A FR 858513 A FR858513 A FR 858513A FR 858513D A FR858513D A FR 858513DA FR 858513 A FR858513 A FR 858513A
Authority
FR
France
Prior art keywords
sound recordings
exploration devices
mechanical
mechanical exploration
devices
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
Other languages
French (fr)
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.)
Koninklijke Philips NV
Original Assignee
Philips Gloeilampenfabrieken NV
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 Philips Gloeilampenfabrieken NV filed Critical Philips Gloeilampenfabrieken NV
Application granted granted Critical
Publication of FR858513A publication Critical patent/FR858513A/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
    • G11B3/02—Arrangements of heads
    • G11B3/10—Arranging, supporting, or driving of heads or of transducers relatively to record carriers
    • G11B3/42—Arranging, supporting, or driving of heads or of transducers relatively to record carriers with provision for adaptation or interchange of heads
    • 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
    • G11B3/44—Styli, e.g. sapphire, diamond
    • G11B3/46—Constructions or forms ; Dispositions or mountings, e.g. attachment of point to shank
FR858513D 1938-08-02 1939-07-31 Improvements to mechanical exploration devices for sound recordings Expired FR858513A (en)

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
DE858513X 1938-08-02

Publications (1)

Publication Number Publication Date
FR858513A true FR858513A (en) 1940-11-27

Family

ID=6789854

Family Applications (1)

Application Number Title Priority Date Filing Date
FR858513D Expired FR858513A (en) 1938-08-02 1939-07-31 Improvements to mechanical exploration devices for sound recordings

Country Status (2)

Country Link
FR (1) FR858513A (en)
GB (1) GB531740A (en)

Families Citing this family (3)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
DE1035923B (en) * 1954-04-01 1958-08-07 Electroacustic Gmbh Holder for pickups
DE1231450B (en) * 1965-01-09 1966-12-29 Dual Gebrueder Steidinger Holding device for pickups in the tonearm
NL6605034A (en) * 1966-04-15 1967-10-16

Also Published As

Publication number Publication date
GB531740A (en) 1941-01-09

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