GB699774A - Improvements in or relating to magnetic sound apparatus, particularly for perforatedmagnetic sound films - Google Patents

Improvements in or relating to magnetic sound apparatus, particularly for perforatedmagnetic sound films

Info

Publication number
GB699774A
GB699774A GB13711/51A GB1371151A GB699774A GB 699774 A GB699774 A GB 699774A GB 13711/51 A GB13711/51 A GB 13711/51A GB 1371151 A GB1371151 A GB 1371151A GB 699774 A GB699774 A GB 699774A
Authority
GB
United Kingdom
Prior art keywords
film
magnetic
drum
sound
june
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
GB13711/51A
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.)
Klangfilm GmbH
Original Assignee
Klangfilm GmbH
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 Klangfilm GmbH filed Critical Klangfilm GmbH
Publication of GB699774A publication Critical patent/GB699774A/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
    • G11B15/00—Driving, starting or stopping record carriers of filamentary or web form; Driving both such record carriers and heads; Guiding such record carriers or containers therefor; Control thereof; Control of operating function
    • G11B15/18—Driving; Starting; Stopping; Arrangements for control or regulation thereof
    • G11B15/26—Driving record carriers by members acting directly or indirectly thereon
    • G11B15/34—Driving record carriers by members acting directly or indirectly thereon through non-slip drive means, e.g. sprocket

Landscapes

  • Photographic Processing Devices Using Wet Methods (AREA)
  • Recording Or Reproducing By Magnetic Means (AREA)

Abstract

699,774. Magnetic recording and reproducing apparatus. KLANGFILM GES. June 8, 1951 [June 10, 1950], No. 13711/51. Class 40 (ii). In a magnetic sound apparatus, the transducer comes into contact with the outside of a magnetic film passing over the periphery of a scanning drum provided with a fly-wheel, means being provided to maintain an air gap between the transducer and the film. The spacing means may take the form of a member 11, Fig. 2, pressing on the drum, or rollers R, Fig. 3. The means for driving the film may comprise a symmetrical arrangement as illustrated in Fig. 4 in which a perforated film 1 passes over a sprocket wheel 12 both before and after passing over the scanning drum 2. A pivoted arm 15 carrying jockey pulleys 16 is provided to balance out irregularities in the film. The apparatus may be used for photographic recording and optical reproduction, by means of an optical recording or reproducing unit 18 placed over the drum 2.
GB13711/51A 1950-06-11 1951-06-08 Improvements in or relating to magnetic sound apparatus, particularly for perforatedmagnetic sound films Expired GB699774A (en)

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
DEK3705A DE878565C (en) 1950-06-11 1950-06-11 Magnetic sound device, especially for perforated magnetic sound films

Publications (1)

Publication Number Publication Date
GB699774A true GB699774A (en) 1953-11-18

Family

ID=6608515

Family Applications (1)

Application Number Title Priority Date Filing Date
GB13711/51A Expired GB699774A (en) 1950-06-11 1951-06-08 Improvements in or relating to magnetic sound apparatus, particularly for perforatedmagnetic sound films

Country Status (3)

Country Link
DE (1) DE878565C (en)
FR (1) FR1049360A (en)
GB (1) GB699774A (en)

Cited By (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
DE1039761B (en) * 1955-09-21 1958-09-25 Kinowerke Dresden Veb Image sound projectors with optional light or magnetic sound scanning

Families Citing this family (6)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
DE1094588B (en) * 1952-07-21 1960-12-08 Leitz Ernst Gmbh Device on a motion picture projector for the optional playback of light or magnetic sound films
DE1013963B (en) * 1953-08-11 1957-08-14 Siemens Ag Magnetic sound film scanner in connection with a film projector
DE1039360B (en) * 1953-08-14 1958-09-18 Bauer Eugen Gmbh Film projector
DE1150869B (en) * 1957-03-28 1963-06-27 Kurt Bier Magnetic sound device for picture film projectors
DE1128740B (en) * 1958-10-09 1962-04-26 Niezoldi & Kraemer G M B H Sound film projection device for narrow films
DE3023979A1 (en) * 1980-06-26 1982-01-14 Herbert Dipl.-Ing. 7012 Fellbach Leisring 16 and 35 Milli-metre sound cine projector - has interchangeable gate drive and common sound head and take=up sprocket wheel

Family Cites Families (4)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
DE582288C (en) * 1933-08-14 I G Farbenindustrie Akt Ges Device for cutting sound recording grooves in tape-shaped sound writing carriers
DE389318C (en) * 1921-03-25 1924-02-05 Josef Engl Dr Device for phonograph with linear phonogram carrier
CH177647A (en) * 1934-09-08 1935-06-15 Apparate U Maschinenfabriken U Sound carriers for speech and music apparatus.
DE733617C (en) * 1938-08-14 1943-03-31 Schallband Syndikat Ag Device for cutting mechanical sound writing in sound bands using a recorder

Cited By (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
DE1039761B (en) * 1955-09-21 1958-09-25 Kinowerke Dresden Veb Image sound projectors with optional light or magnetic sound scanning

Also Published As

Publication number Publication date
DE878565C (en) 1953-06-05
FR1049360A (en) 1953-12-29

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