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DE607494C - Sound film drive device - Google Patents

Sound film drive device

Info

Publication number
DE607494C
DE607494C DE1930607494D DE607494DD DE607494C DE 607494 C DE607494 C DE 607494C DE 1930607494 D DE1930607494 D DE 1930607494D DE 607494D D DE607494D D DE 607494DD DE 607494 C DE607494 C DE 607494C
Authority
DE
Germany
Prior art keywords
drive device
sound film
film drive
sound
film
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
DE1930607494D
Other languages
German (de)
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.)
Tobis Tonbild Syndikat GmbH
Original Assignee
Tobis Tonbild Syndikat 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 Tobis Tonbild Syndikat GmbH filed Critical Tobis Tonbild Syndikat GmbH
Application granted granted Critical
Publication of DE607494C publication Critical patent/DE607494C/en
Expired legal-status Critical Current

Links

Classifications

    • G—PHYSICS
    • G03—PHOTOGRAPHY; CINEMATOGRAPHY; ANALOGOUS TECHNIQUES USING WAVES OTHER THAN OPTICAL WAVES; ELECTROGRAPHY; HOLOGRAPHY
    • G03B—APPARATUS OR ARRANGEMENTS FOR TAKING PHOTOGRAPHS OR FOR PROJECTING OR VIEWING THEM; APPARATUS OR ARRANGEMENTS EMPLOYING ANALOGOUS TECHNIQUES USING WAVES OTHER THAN OPTICAL WAVES; ACCESSORIES THEREFOR
    • G03B31/00—Associated working of cameras or projectors with sound-recording or sound-reproducing means
    • G03B31/02—Associated working of cameras or projectors with sound-recording or sound-reproducing means in which sound track is on a moving-picture film

Landscapes

  • Physics & Mathematics (AREA)
  • General Physics & Mathematics (AREA)
  • Dynamo-Electric Clutches, Dynamo-Electric Brakes (AREA)

Description

Tonfilmantriebseinrichtung Die Erfindung bezieht sich auf Einrichtungen zum gleichförmigen Antrieb von ,aus Metall hergestellten oder mit Metallauflagen versehenen Tonfilmen unter Verwendung einer nächst der Tonabtaststelle vorgesehenen Wirbelstrombremse.Sound Film Drive Apparatus The invention relates to apparatus for the uniform drive of, made of metal or with metal supports provided sound films using a provided next to the sound sampling point Eddy current brake.

Es ist bereits bekannt, zwecks Erzielung einer gleichmäßigen Ablaufgeschwindigkeit des Tonfilms Wirbelstrombremsen nächst der Tonabtaststellle anzuordnen. Hierbei wird der Film zunächst über Filmrollen geführt und treibt über diese dI:e Wirbelstrombremsscheibe an.It is already known for the purpose of achieving a uniform running speed of the sound film eddy current brakes to be arranged next to the Tonabtaststellle. Here the film is first guided over film rolls and drives over these dI: e eddy current brake discs at.

Der Grundgedanke der Erfindung besteht darin, bei Verwendung der bekannten aus Metall hergestellten oder Metallauflagen besitzenden Filmbänder das Filmband selbst an Stelle der sonst üblichen Bremsscheibe zwischen den Polen des das Bremsfeld erzeugenden Magneten hindurchzuführen.The basic idea of the invention consists in using the known Film tapes made of metal or having metal plating have the film tape even instead of the usual brake disc between the poles of the braking field generating magnets through it.

Hierdurch ist auf einfache Art eine sicher wirkende Einrichtung zur Erzielung einer gleichmäßigen Ablaufgeschwindigkeit zu erzielen.As a result, a safe-acting device is in a simple manner To achieve a uniform run-off speed.

Claims (1)

PATENTANSPRUCH: Einrichtung zum gleichförmigen Antrieb von aus Metall hergestellten,oder mit Metallauflagen versehenen Tonfilmbändern an der Tonabtaststelle unter Verwendung von Wirbelstrombremsen, dadurch gekennzeichnet, daß an Stelle der sonst üblichen Bremsscheibe das Filmband selbst zwischen den Polen des Bremsmagneten hindurchbewegt wird.PATENT CLAIM: Device for the uniform drive of made of metal sound film tapes produced or provided with metal supports at the sound scanning point using eddy current brakes, characterized in that instead of the Otherwise usual brake disc the film tape itself between the poles of the brake magnet is moved through.
DE1930607494D 1930-08-22 1930-08-22 Sound film drive device Expired DE607494C (en)

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
DE607494T 1930-08-22

Publications (1)

Publication Number Publication Date
DE607494C true DE607494C (en) 1934-12-29

Family

ID=6575662

Family Applications (1)

Application Number Title Priority Date Filing Date
DE1930607494D Expired DE607494C (en) 1930-08-22 1930-08-22 Sound film drive device

Country Status (1)

Country Link
DE (1) DE607494C (en)

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