DE548319C - Film tour at cinematograph - Google Patents

Film tour at cinematograph

Info

Publication number
DE548319C
DE548319C DEL79361D DEL0079361D DE548319C DE 548319 C DE548319 C DE 548319C DE L79361 D DEL79361 D DE L79361D DE L0079361 D DEL0079361 D DE L0079361D DE 548319 C DE548319 C DE 548319C
Authority
DE
Germany
Prior art keywords
film
cinematograph
tour
pressure rollers
lens
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
DEL79361D
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.)
Liesegang Fa Ed
Original Assignee
Liesegang Fa Ed
Publication date
Priority to DEL79361D priority Critical patent/DE548319C/en
Application granted granted Critical
Publication of DE548319C publication Critical patent/DE548319C/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
    • G03B1/00—Film strip handling
    • G03B1/42—Guiding, framing, or constraining film in desired position relative to lens system

Landscapes

  • Physics & Mathematics (AREA)
  • General Physics & Mathematics (AREA)
  • Registering, Tensioning, Guiding Webs, And Rollers Therefor (AREA)

Description

Es sind Filmführungen bekannt, bei denen ein schlittenartig gleitender Objektivträger zugleich auch die Filmkufen trägt und zum Einlegen des Films in Richtung der Objektivachse verschiebbar ist, so daß zwischen der Filmbahn und den Filmkufen ein genügend großer Raum sich öffnet. Die Bewegung des Objektivträgers wird dabei bekanntermaßen durch ein Getriebe oder durch Kulissenführungen derart auf die Andrückrollen der Vorwickeltrommel bzw. der Nachwickeltrommel oder beider übertragen, daß diese Rollen sich von den Trommeln entfernen und auch ihrerseits Raum geben zum Einlegen des Films.There are film guides known in which a slide-like sliding lens carrier at the same time also carries the film runners and for inserting the film in the direction of the lens axis is displaceable, so that a sufficiently large space opens between the film web and the film runners. The movement of the The lens carrier is known to be by a gear or by link guides so on the pressure rollers of the pre-winding drum and the post-winding drum or both transmit that these roles move away from the drums and also give their turn space to insert the Films.

' Erfindungsgemäß wird diese Bewegungsübertragung zwischen dem Objektivträger und den Andrückrollen erheblich vereinfacht, indem nach Abb. 1 die Andrückrollen α und b According to the invention, this transfer of movement between the lens carrier and the pressure rollers is considerably simplified by the pressure rollers α and b

ao ohne Anwendung eines Steuergliedes unmittelbar starr oder federnd mit dem Objektivträger c verbunden sind, derart, daß sie dessen geradlinige Bewegung in Richtung der Objektivachse mitmachen müssen und sich auf diese Weise in tangentialer Richtung von der «5 Vorwickeltrommel d bzw. der Nachwickeltrommel e entfernen, um gleichzeitig mit den Filmkufen f zum Einlegen des Films g Raum zu geben. In Abb. 2 ist die Lage der einzelnen Teile der Filmführung bei geöffneter Filmbahn dargestellt.ao are directly rigidly or resiliently connected to the lens carrier c without the use of a control element, in such a way that they have to follow its straight-line movement in the direction of the lens axis and in this way move tangentially away from the pre-winding drum d or the post-winding drum e , in order to provide space for inserting the film g at the same time as the film runners f. In Fig. 2 the position of the individual parts of the film guide is shown with the film web open.

Claims (1)

Patentanspruch:Claim: Filmführung an Kinematographen mit in Richtung der Objektivachse gleitendem Objektivträger, der die Filmkufen trägt und die Andrückrollen der Wickeltrommeln in die Betriebslage und aus dieser heraus bewegt, dadurch gekennzeichnet, daß die Andrückrollen unmittelbar starr oder federnd an dem Objektivträger befestigt sind.Film guidance on cinematograph with sliding in the direction of the lens axis Lens carrier that carries the film runners and the pressure rollers of the winding drums moved into and out of the operating position, characterized in that the pressure rollers are directly rigid or are resiliently attached to the lens mount. Hierzu 1 Blatt Zeichnungen1 sheet of drawings
DEL79361D Film tour at cinematograph Expired DE548319C (en)

Priority Applications (1)

Application Number Priority Date Filing Date Title
DEL79361D DE548319C (en) Film tour at cinematograph

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
DEL79361D DE548319C (en) Film tour at cinematograph

Publications (1)

Publication Number Publication Date
DE548319C true DE548319C (en) 1932-04-15

Family

ID=7284609

Family Applications (1)

Application Number Title Priority Date Filing Date
DEL79361D Expired DE548319C (en) Film tour at cinematograph

Country Status (1)

Country Link
DE (1) DE548319C (en)

Cited By (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US2451782A (en) * 1945-05-04 1948-10-19 Avimo Ltd Camera film gate threading mechanism

Cited By (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US2451782A (en) * 1945-05-04 1948-10-19 Avimo Ltd Camera film gate threading mechanism

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