CH123748A - Method for showing films and apparatus for practicing this method. - Google Patents
Method for showing films and apparatus for practicing this method.Info
- Publication number
- CH123748A CH123748A CH123748DA CH123748A CH 123748 A CH123748 A CH 123748A CH 123748D A CH123748D A CH 123748DA CH 123748 A CH123748 A CH 123748A
- Authority
- CH
- Switzerland
- Prior art keywords
- crank
- practicing
- pressed
- brake
- electric motor
- Prior art date
Links
Landscapes
- Braking Arrangements (AREA)
Description
Verfahren zum Vorführen von Filmen und Vorrichtung zur Ausübung dieses Verfahrens. Der Gegenstand der Erfindung betrifft ein Verfahren zum Vorführen von Filmen bei elektrisch betriebenen Kinovorführungsappa- raten und eine Vorrichtung zur Ausübung dieses Verfahrens.
Gemäss der Erfindung ändert man vor übergehend mit einer mechanischen Bremse die Geschwindigkeit des Apparates wie es zum Beispiel bei der Vorführung von Titeln erwünscht ist. Es wird dadurch bezweckt, die Geschwindigkeit des Apparates ohne Ver stellung des Anlasswiderstandes des Antriebs motors ändern zu können. Die Abbretnsung des Apparates kann an irgend einer geeigneten Stelle des Werkes geschehen.
Auf der Zeichnung sind, nur so weit es für das Verständnis der Erfindung nötig ist, zwei Ausführungsbeispiele einer Vorrichtung dargestellt, welche eine Ausübu<B>ng</B> desVerfahrens gestattet. Bei der Ausführungsart nach Fig. 1 wird an der Kurbelwelle gebremst, während nach der Ausführungsart nach Fig.2 am Schwungrad gebremst wird. .
Bei der Ausführungsart nach Fig. 1 ist an der Apparatenkurbel 1 ein doppelarmiger Hebel 3 um eine Achse 2.drehbar angebracht. Derselbe wird durch eine Feder d in der ge zeichneten Stellung gehalten. Der eine Hebel arm trägt eine Bremsscheibe 5, die sich beim Drücken auf dem Hebelarm 6 gegen eine Scheibe 7 der Kurbelachse 8 legt und so den Apparat abbremst.
Bei der Ausführungsart nach Fig. 2 kann durch Bewegen eines Handgriffes 9 ein Bremsklotz 10 an das Schwungrad 11 des Apparates angedrückt werden, wodurch auch hier eine Bremsung des Apparates eintritt.
Method for showing films and apparatus for practicing this method. The subject matter of the invention relates to a method for showing films in electrically operated cinema projection apparatus and a device for carrying out this method.
According to the invention, the speed of the apparatus is changed temporarily with a mechanical brake, as is desired, for example, when showing titles. The purpose of this is to be able to change the speed of the apparatus without adjusting the starting resistance of the drive motor. The apparatus can be dismantled at any suitable point in the work.
In the drawing, only to the extent necessary to understand the invention, two exemplary embodiments of a device are shown which allow the method to be carried out. In the embodiment according to FIG. 1, the crankshaft is braked, while according to the embodiment according to FIG. 2, the flywheel is braked. .
In the embodiment according to FIG. 1, a double-armed lever 3 is attached to the apparatus crank 1 so that it can rotate about an axis 2. The same is held by a spring d in the ge recorded position. One lever arm carries a brake disc 5 which, when pressed on the lever arm 6, rests against a disc 7 of the crank axle 8 and thus brakes the apparatus.
In the embodiment according to FIG. 2, a brake pad 10 can be pressed against the flywheel 11 of the apparatus by moving a handle 9, whereby the apparatus is also braked here.
Claims (1)
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| DE123748X | 1926-05-06 |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CH123748A true CH123748A (en) | 1927-12-16 |
Family
ID=5657928
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CH123748D CH123748A (en) | 1926-05-06 | 1926-10-14 | Method for showing films and apparatus for practicing this method. |
Country Status (1)
| Country | Link |
|---|---|
| CH (1) | CH123748A (en) |
-
1926
- 1926-10-14 CH CH123748D patent/CH123748A/en unknown
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