DE156726C - - Google Patents
Info
- Publication number
- DE156726C DE156726C DENDAT156726D DE156726DA DE156726C DE 156726 C DE156726 C DE 156726C DE NDAT156726 D DENDAT156726 D DE NDAT156726D DE 156726D A DE156726D A DE 156726DA DE 156726 C DE156726 C DE 156726C
- Authority
- DE
- Germany
- Prior art keywords
- slide rod
- pawls
- spring
- film
- engages
- 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.)
- Active
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
- G03B19/00—Cameras
- G03B19/02—Still-picture cameras
- G03B19/04—Roll-film cameras
Landscapes
- Physics & Mathematics (AREA)
- General Physics & Mathematics (AREA)
- Unwinding Webs (AREA)
Description
KAISERLICHESIMPERIAL
PATENTAMT.PATENT OFFICE.
Bei Rollkassetten und Rollkameras ist esWith roll cassettes and roll cameras it is
von Vorteil, eine Sperrvorrichtung für die Filmspulen zu besitzen, welche sowohl die Vorwärts- als auch die Rückwärtsbewegung des Filmbandes gestattet.advantageous to have a locking device for the film reels, which both the Forward as well as backward movement of the film strip is permitted.
Eine solche Vorrichtung ist der Gegenstand der vorliegenden Erfindung.Such a device is the subject of the present invention.
Die Zeichnung zeigt eine Ausführungsform der Erfindung, und zwar in Fig. ι in Mittel-Stellung, in Fig. 2 nach rechts und in Fig. 3 nach links verschoben.The drawing shows an embodiment of the invention, namely in Fig. Ι in the central position, shifted to the right in FIG. 2 and to the left in FIG. 3.
Zwei Sperrklinken b können sowohl zum gleichzeitigen als auch zum abwechselungsweisen Eingriff in die Sperräder α gebracht werden, indem eine Schieberstange c so mit den Klinken b gekuppelt ist, daß sie jeweilig nur eine Klinke gegen den Druck der sie beeinflussenden Feder f zu bewegen vermag. Two pawls b both simultaneously and for diversified have engaged in the ratchet wheels can be brought α, is by c, a slide rod so coupled b with the pawls, that it is able to f influencing spring to move respectively, only one pin against the pressure of.
Die Schieberstange c ist bei dem gezeichneten Ausführungsbeispiel an den Enden zu Haken umgebogen, welche jede Sperrklinke nur nach einer Seite mitnehmen können, während die andere unbeeinflußt bleibt.The slide rod c is bent over at the ends to hooks in the illustrated embodiment, which can only take each pawl to one side, while the other remains unaffected.
Die unbeeinflußte Sperrklinke wird durch ihre Feder f gegen das zugehörige Sperrad gedrückt.The unaffected pawl is pressed against the associated ratchet wheel by its spring f.
Zum Feststellen des Schiebers c in einer bestimmten Lage können Rasten g an diesem vorgesehen werden, in welche eine Feder d eingreift.To fix the slide c in a certain position, notches g can be provided on this, in which a spring d engages.
Die Schieberstange c wird an der Kamera, z. B. durch eine in Fig. 1 links von der Feder d angedeutete Führung gehalten.The slide rod c is attached to the camera, e.g. B. held by a guide indicated in Fig. 1 to the left of the spring d.
Wenn die Schieberstange c so gestellt ist, daß die Schnappfeder d in ihre mittlere Rast eingreift, so stehen beide Sperrklinken im Eingriff mit den Sperrädern, so daß das beim Vorrücken straff gespannte Filmband sich nicht lockern kann.When the slide rod c is set so that the snap spring d engages in its central detent, both pawls are in engagement with the ratchet wheels so that the film tape, which is taut as it moves forward, cannot loosen.
Claims (1)
Publications (1)
Publication Number | Publication Date |
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DE156726C true DE156726C (en) |
Family
ID=423070
Family Applications (1)
Application Number | Title | Priority Date | Filing Date |
---|---|---|---|
DENDAT156726D Active DE156726C (en) |
Country Status (1)
Country | Link |
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DE (1) | DE156726C (en) |
Cited By (2)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
DE759696C (en) * | 1941-02-25 | 1953-06-08 | Franke & Heidecke Fabrik Photo | Roll film camera with a rewind device |
DE1021708B (en) * | 1954-11-02 | 1957-12-27 | Erich Buerke | Process for the selective exposure of two films in one camera |
-
0
- DE DENDAT156726D patent/DE156726C/de active Active
Cited By (2)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
DE759696C (en) * | 1941-02-25 | 1953-06-08 | Franke & Heidecke Fabrik Photo | Roll film camera with a rewind device |
DE1021708B (en) * | 1954-11-02 | 1957-12-27 | Erich Buerke | Process for the selective exposure of two films in one camera |
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