DE359188C - Controller for the picture tape switching of cinematographs - Google Patents
Controller for the picture tape switching of cinematographsInfo
- Publication number
- DE359188C DE359188C DEP39118D DEP0039118D DE359188C DE 359188 C DE359188 C DE 359188C DE P39118 D DEP39118 D DE P39118D DE P0039118 D DEP0039118 D DE P0039118D DE 359188 C DE359188 C DE 359188C
- Authority
- DE
- Germany
- Prior art keywords
- picture
- cinematographs
- controller
- picture tape
- tape switching
- 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
- G03B1/42—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
Bei einfachen kinematographischen Apparaten kommt es häufig vor, daß infolge zu raschen Ganges der Aufwickelspule der regelmäßige schrittweise Gang des Bildbandes leidet. Durch die Erfindung soll diesem Übelstande abgeholfen werden. Die Erfindung sieht eine Vorrichtung vor, durch die ohne besondere bewegte Organe eine selbsttätige Bremsung des Filmes erreicht wird, wenn durch zu starken Zug dasWith simple cinematographic apparatus it often happens that as a result too rapid Ganges of the take-up reel The regular, gradual rate of the illustrated book suffers. By the invention is intended to remedy this disadvantage. The invention provides an apparatus before, by the automatic braking of the film without any special moving organs is achieved when the
ίο Bildband in unzulässigem Maße gespannt wird. Dies ist dadurch erreicht worden, daß in den Weg des Bildbandes eine feste Bremsfläche eingebaut ist, über welche das Bildband bei zu starker Spannung gezogen wird und durch die derjenige Teil, welcher zwischen der Trommel für den schrittweisen Zug und der Bremsfläche Hegt, so lange abgebremst wird, bis die Spannung genügend nachläßt. Die Bremsfläche kann aus einer feststehenden Walze mit Gummibelag oder aus einem wulstartigen Körper mit einem Belag aus Gummi oder aus einem anderen bremsenden Stoff bestehen.ίο The illustrated book is stretched to an impermissible extent. This has been achieved by installing a fixed braking surface in the path of the illustrated book is over which the picture book is pulled when the tension is too strong and through which the part which is between the drum for the gradual pull and the braking surface Lies, slows down until the tension is sufficiently relieved. The braking surface can from a stationary roller with a rubber coating or from a bead-like body with a The lining is made of rubber or some other material that slows you down.
Eine Ausführungsform der Erfindung ist auf der Zeichnung dargestellt.An embodiment of the invention is shown in the drawing.
Die Schaltrolle α zieht in bekannter Weise das Bildband b schrittweise durch das Bildfenster c hindurch, worauf das Bildband auf die Aufwickelspule e aufgewickelt wird. In den von einer Führung d umfaßten Raum ist nun eine feste Bremsfläche f eingebaut, die als Rolle mit Bremsbelag oder auch als. Wulst mit einem Belag aus Gummi oder ähnlichem Stoff ausgebildet ist.The switching roller α pulls the picture tape b step by step through the picture window c in a known manner, whereupon the picture tape is wound onto the take-up reel e. In the space encompassed by a guide d, a fixed braking surface f is now installed, which can be used as a roller with a brake lining or as a. Bead is formed with a covering made of rubber or similar material.
Wird durch zu schnellen Gang der Spule e das Bildband zu stark gespannt, so legt es sich auf die feste Bremsfläche f. Dadurch wird das Bildband gebremst und auch die Spule e aufgehalten, die in bekannter Weise mit ihrem Antrieb durch eine Gleitkupplung verbunden ist, ohne daß ein zu starker Zug auf die Schaltlöcher an der Schaltrolle α ausgeübt wird. Erst wenn die Walze α das Bildband wiederum so viel nachgeschoben hat, daß es in der Führung d genügend entspannt ist, geht das Aufwickeln des Bildbandes weiter. +5If the picture tape is stretched too much because the reel e is running too fast, it lies on the fixed braking surface f. This brakes the picture tape and also stops the reel e, which is connected to its drive in a known manner by a sliding clutch without that too much tension is exerted on the switching holes on the pulley α. Only when the roller α has again pushed the picture tape so much that it is sufficiently relaxed in the guide d does the winding of the picture tape continue. +5
Claims (1)
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| DEP39118D DE359188C (en) | Controller for the picture tape switching of cinematographs |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| DEP39118D DE359188C (en) | Controller for the picture tape switching of cinematographs |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| DE359188C true DE359188C (en) | 1922-09-19 |
Family
ID=7376300
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| DEP39118D Expired DE359188C (en) | Controller for the picture tape switching of cinematographs |
Country Status (1)
| Country | Link |
|---|---|
| DE (1) | DE359188C (en) |
-
0
- DE DEP39118D patent/DE359188C/en not_active Expired
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