DE451393C - Cinema engine with sinusoidal control disk for the movement of the gripper - Google Patents
Cinema engine with sinusoidal control disk for the movement of the gripperInfo
- Publication number
- DE451393C DE451393C DEE33544D DEE0033544D DE451393C DE 451393 C DE451393 C DE 451393C DE E33544 D DEE33544 D DE E33544D DE E0033544 D DEE0033544 D DE E0033544D DE 451393 C DE451393 C DE 451393C
- Authority
- DE
- Germany
- Prior art keywords
- gripper
- cinema
- engine
- film
- movement
- 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
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
- G03B1/18—Moving film strip by means which act on the film between the ends thereof
- G03B1/20—Acting means
- G03B1/22—Claws or pins engaging holes in the film
Landscapes
- Physics & Mathematics (AREA)
- General Physics & Mathematics (AREA)
- Advancing Webs (AREA)
Description
Es sind Kinotriebwerke bekannt, bei denen durch, eine sinuskurvenförmige Steuerscheibe der Antrieb des Verschlusses wie auch des Greifers erfolgt und ein mit der Kurvenscheibe zusammenarbeitendes Steuerglied für die senkrecht oder annähernd senkrecht zum Film hin und her gehende Bewegung der Greiferspitzen vorgesehen ist.There are cinema drives known in which, a sinusoidal control disk the drive of the lock as well as the gripper takes place and one with the cam cooperating control member for the perpendicular or approximately perpendicular to the film reciprocating movement of the Gripper tips is provided.
Bei diesen Einrichtungen werden die Leitrollen des Steuergliedes und auch die Leitrollen der sonst noch mit der Kurvenscheibe zusammenwirkenden Teile an den Umfang der Kurvenscheibe durch Federkraft angepreßt. Von diesen Einrichtungen unterscheidet sich der Erfindungsgegenstand insofern, daß ein an die Kurve sich pressender Füihrungsteil des Filmgreifers auf diesen in verscfiiebendem Sinne einwirkt, dagegen auf einen ebenfalls angepreßten Fortschalthebel, der mit dem Greifertragteil durch Hebel usw. gekuppelt ist, in schwenkendem Sinne.In these facilities, the guide rollers of the control member and also the guide rollers the parts otherwise cooperating with the cam are pressed against the circumference of the cam by spring force. Of these devices, the subject matter of the invention differs in that a The guide part of the film gripper that presses against the curve and moves onto it Senses acts, on the other hand, on a also pressed forward lever, which with the Gripper support part is coupled by levers, etc., in a pivoting sense.
Dadurch wird erreicht, daß der Greifer nicht mehr schwingt, sondern während der Ausführung der Schaltung eine rechteckig- oder parallelogrammartige zwangläufige Bewegung ausführt. Es wird auf diese Weise der stets gleich tiefe Eingriff des Greifers in die Filmperforation gesichert.This ensures that the gripper no longer oscillates, but rather during the Execution of the circuit a rectangular or parallelogram-like inevitable movement executes. In this way, the gripper engages in the same depth at all times the film perforation secured.
Eine Ausfülirungsform der Fortschaltevorrichtung nach der Erfindung ist zeichnerisch dargestellt, und zwar zeigt Abb. 1 sie im Belichtungs-, d.h. Ruhezustand, unmittelbar vor Beginn der Fortschaltung des Films und Abb. 2 am Ende der Fortschaltung.One embodiment of the indexing device according to the invention is shown in the drawing shown, namely Fig. 1 shows it in the exposure, i.e. resting state, immediately before Beginning of the progression of the film and Fig. 2 at the end of the progression.
In einem Lagert befindet sich ein Gleit-In a bearing there is a sliding
Abb. i.Fig.i.
teil6s. Dieser hat an seinem der Filmbahn zugekehrten Ende einen parallel zur Filmbahn liegenden Führungsschlitz b5 im Teil δ4. Dieser ist durch Federn b1 mit dem Lager &7 so verbunden, daß der Gleitteil b6 immer gegen ein drehbares Steuerglied« gepreßt wird und sich an dessen sinuskuTvenförmig gestalteten Umfang mit einem Gleitteil b anlegt.part6 s . At its end facing the film web, this has a guide slot b 5 lying parallel to the film web in part δ 4 . This is connected to the bearing 7 by springs b 1 in such a way that the sliding part b 6 is always pressed against a rotatable control element and rests on its sinusoidal-shaped circumference with a sliding part b .
In der Führung b5 gleitet mittels Stift o. dgl. ein Tragteil b3 des Greifers b2 auf und ab. Dieser Tragteil b3 ist direkt (Abb. 1) oder indirekt (Abb. 2) mittels Zwischengestänge c3 mit einem Schalthebel c2 verbunden, der unter Wirkung einer Federe1 mit einem Gleitteilc sich an die Sinusicurve des Steuergliedes a anlegt. A support part b 3 of the gripper b 2 slides up and down in the guide b 5 by means of a pin or the like. This support part b 3 is connected directly (Fig. 1) or indirectly (Fig. 2) by means of an intermediate linkage c 3 with a shift lever c 2 , which rests against the sinusoidal curve of the control member a under the action of a spring 1 with a sliding part c.
Claims (1)
Priority Applications (1)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
DEE33544D DE451393C (en) | Cinema engine with sinusoidal control disk for the movement of the gripper |
Applications Claiming Priority (1)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
DEE33544D DE451393C (en) | Cinema engine with sinusoidal control disk for the movement of the gripper |
Publications (1)
Publication Number | Publication Date |
---|---|
DE451393C true DE451393C (en) | 1927-10-21 |
Family
ID=7076269
Family Applications (1)
Application Number | Title | Priority Date | Filing Date |
---|---|---|---|
DEE33544D Expired DE451393C (en) | Cinema engine with sinusoidal control disk for the movement of the gripper |
Country Status (1)
Country | Link |
---|---|
DE (1) | DE451393C (en) |
Cited By (2)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
US2587548A (en) * | 1949-03-23 | 1952-02-26 | Paillard Sa | Mechanism for the intermittent driving of cinematographic films |
US2793562A (en) * | 1953-03-06 | 1957-05-28 | Siemens Ag | Device for adjusting the film transport control in motion picture apparatus |
-
0
- DE DEE33544D patent/DE451393C/en not_active Expired
Cited By (2)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
US2587548A (en) * | 1949-03-23 | 1952-02-26 | Paillard Sa | Mechanism for the intermittent driving of cinematographic films |
US2793562A (en) * | 1953-03-06 | 1957-05-28 | Siemens Ag | Device for adjusting the film transport control in motion picture apparatus |
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