DE497179C - Control device for the fire protection flap on cinema sets - Google Patents
Control device for the fire protection flap on cinema setsInfo
- Publication number
- DE497179C DE497179C DES82256D DES0082256D DE497179C DE 497179 C DE497179 C DE 497179C DE S82256 D DES82256 D DE S82256D DE S0082256 D DES0082256 D DE S0082256D DE 497179 C DE497179 C DE 497179C
- Authority
- DE
- Germany
- Prior art keywords
- control device
- fire protection
- flap
- line
- cinema
- 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
- G03B21/00—Projectors or projection-type viewers; Accessories therefor
- G03B21/14—Details
- G03B21/18—Fire preventing or extinguishing
Landscapes
- Physics & Mathematics (AREA)
- General Physics & Mathematics (AREA)
- Fire-Extinguishing By Fire Departments, And Fire-Extinguishing Equipment And Control Thereof (AREA)
Description
Steuervorrichtung für die Feuerschutzklappe an Kinoapparaten Es ist bekannt, die Feuerschutvklappe an Kinoapparaten mittels eines von der Kühlluft bewegten Kolbens oder durch Flüssigkeitsdruck in der Oftenstellung zu halten. Läßt dieser Druck nach, so sinkt die Klappe und deckt das Bildfenster ab. Die biekannten Flüssigkeitssteuerungen ,arbeiten, mit @eüner" besonderen Fördervorrichtung für die Flüssigkeit.Control device for the fire damper on cinema sets It is known, the fire protection flap on cinema sets by means of one moved by the cooling air To keep the piston in the open position or by fluid pressure. Lets this Pressing down, the flap sinks and covers the picture window. The well-known fluid controls , work, with @ eüner "special conveying device for the liquid.
Um eine solche zu vermeiden und damit die Gesamtanordnung zu vereinfachen, -wird er-, findungsgemäß als Flüssigkeitspumpe diefast an jedem Apparat vorhandene Schmierpumpe und als Dru.cklüssigkeit der Ölstrom verwendet.To avoid this and thus to simplify the overall arrangement, According to the invention, it is used as a liquid pump which is present in almost every apparatus Lubricating pump and the oil flow used as the pressure fluid.
Das beim Gang der PumpeP geförderte Öl tritt in den Druckzylinderd und verschiebt hierbei den durch ein Gestänge mit der Feuerschutzklappe verbundenen Kolben e derart, daß die Schutzklappe sich öffnet.The oil delivered when the pump P is in operation enters the pressure cylinderd and moves the one connected to the fire damper by a linkage Piston e in such a way that the protective flap opens.
Wird die Tätigkeit der Pumpe durch irgendeinen Vorgang unterbrochen, so senkt sich die Klappe und drückt den Kolbene in seine Ruhelage zurück. Dieser Vorgang kann auf verschiedene Weise beschleunigt werden; in d,:r Zeichnung ist beispäelsweise eine Druckfeder Tals Hilfsmittel dargestellt. Mittels eines in seiner Konstruktion bekannten Überdruckventils b kann je nach der Beschaffenheit des zur Verwendung gelangenden Öles der Druck für das ganze System eingestellt werden.If the operation of the pump is interrupted by any process, so the flap lowers and pushes the piston back into its rest position. This The process can be accelerated in various ways; in d: r drawing is an example a compression spring depicted as an aid. By means of one in its construction known pressure relief valve b can be used depending on the nature of the the pressure for the entire system can be set.
Claims (2)
Priority Applications (1)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
DES82256D DE497179C (en) | Control device for the fire protection flap on cinema sets |
Applications Claiming Priority (1)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
DES82256D DE497179C (en) | Control device for the fire protection flap on cinema sets |
Publications (1)
Publication Number | Publication Date |
---|---|
DE497179C true DE497179C (en) | 1930-05-05 |
Family
ID=7510211
Family Applications (1)
Application Number | Title | Priority Date | Filing Date |
---|---|---|---|
DES82256D Expired DE497179C (en) | Control device for the fire protection flap on cinema sets |
Country Status (1)
Country | Link |
---|---|
DE (1) | DE497179C (en) |
Cited By (2)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
DE1013962B (en) * | 1954-03-10 | 1957-08-14 | Frieseke & Hoepfner Gmbh | Control for a light shutter in motion picture projectors |
DE1123201B (en) * | 1958-07-26 | 1962-02-01 | Zeiss Ikon Ag | Arrangement for delayed switching on of the projection lamp circuit of cine projectors |
-
0
- DE DES82256D patent/DE497179C/en not_active Expired
Cited By (2)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
DE1013962B (en) * | 1954-03-10 | 1957-08-14 | Frieseke & Hoepfner Gmbh | Control for a light shutter in motion picture projectors |
DE1123201B (en) * | 1958-07-26 | 1962-02-01 | Zeiss Ikon Ag | Arrangement for delayed switching on of the projection lamp circuit of cine projectors |
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