FR1099554A - Improvement in devices for reading recordings on discs - Google Patents

Improvement in devices for reading recordings on discs

Info

Publication number
FR1099554A
FR1099554A FR1099554DA FR1099554A FR 1099554 A FR1099554 A FR 1099554A FR 1099554D A FR1099554D A FR 1099554DA FR 1099554 A FR1099554 A FR 1099554A
Authority
FR
France
Prior art keywords
discs
improvement
devices
recordings
reading
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)
Inventor
Maurice Martenot
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 filed Critical
Application granted granted Critical
Publication of FR1099554A publication Critical patent/FR1099554A/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
    • G11B3/12—Supporting in balanced, counterbalanced or loaded operative position during transducing, e.g. loading in direction of traverse
    • G11B3/20—Supporting in balanced, counterbalanced or loaded operative position during transducing, e.g. loading in direction of traverse by elastic means, e.g. spring
FR1099554D 1954-02-15 1954-02-15 Improvement in devices for reading recordings on discs Expired FR1099554A (en)

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
FR1099554T 1954-02-15

Publications (1)

Publication Number Publication Date
FR1099554A true FR1099554A (en) 1955-09-07

Family

ID=9619842

Family Applications (1)

Application Number Title Priority Date Filing Date
FR1099554D Expired FR1099554A (en) 1954-02-15 1954-02-15 Improvement in devices for reading recordings on discs

Country Status (1)

Country Link
FR (1) FR1099554A (en)

Cited By (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US2969241A (en) * 1959-07-17 1961-01-24 Alex M Wyrod Raising and lowering device for phonograph arm
US3178189A (en) * 1961-06-12 1965-04-13 Rheem Mfg Co Phonograph accessory

Cited By (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US2969241A (en) * 1959-07-17 1961-01-24 Alex M Wyrod Raising and lowering device for phonograph arm
US3178189A (en) * 1961-06-12 1965-04-13 Rheem Mfg Co Phonograph accessory

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