FR684418A - Improvements to gramophones - Google Patents

Improvements to gramophones

Info

Publication number
FR684418A
FR684418A FR684418DA FR684418A FR 684418 A FR684418 A FR 684418A FR 684418D A FR684418D A FR 684418DA FR 684418 A FR684418 A FR 684418A
Authority
FR
France
Prior art keywords
gramophones
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 FR684418A publication Critical patent/FR684418A/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
    • G11B3/08—Raising, lowering, traversing otherwise than for transducing, arresting, or holding-up heads against record carriers
    • G11B3/09—Raising, lowering, traversing otherwise than for transducing, arresting, or holding-up heads against record carriers using manual means only
    • G11B3/093—Means coupled to the cover
    • 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
    • G11B3/34—Driving or guiding during transducing operation
    • G11B3/38—Guiding, e.g. constructions or arrangements providing linear or other special tracking characteristics
FR684418D 1928-11-16 1929-11-05 Improvements to gramophones Expired FR684418A (en)

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
NL684418X 1928-11-16

Publications (1)

Publication Number Publication Date
FR684418A true FR684418A (en) 1930-06-25

Family

ID=19805606

Family Applications (1)

Application Number Title Priority Date Filing Date
FR684418D Expired FR684418A (en) 1928-11-16 1929-11-05 Improvements to gramophones

Country Status (2)

Country Link
BE (1) BE365141A (en)
FR (1) FR684418A (en)

Cited By (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US2676808A (en) * 1948-12-31 1954-04-27 Rca Corp Sliding carriage pickup assembly

Cited By (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US2676808A (en) * 1948-12-31 1954-04-27 Rca Corp Sliding carriage pickup assembly

Also Published As

Publication number Publication date
BE365141A (en)

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