DE497179C - Control device for the fire protection flap on cinema sets - Google Patents

Control device for the fire protection flap on cinema sets

Info

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
Application number
DES82256D
Other languages
German (de)
Current Assignee (The listed assignees may be inaccurate. Google has not performed a legal analysis and makes no representation or warranty as to the accuracy of the list.)
Individual
Original Assignee
Individual
Publication date
Priority to DES82256D priority Critical patent/DE497179C/en
Application granted granted Critical
Publication of DE497179C publication Critical patent/DE497179C/en
Expired legal-status Critical Current

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)

PATENTANSPRÜCHE: i. Steuervorrichtung der Feuerschutzklappe an Kinoapparaten mit Hilfe einer Flüssigkeit, dadurch gekennzeichnet, daß die Feuerschutzklappe an einen unter der Wirkung des von der Schmierdruckpumpe erzeugten Ölstromes stehenden Kolben angeschlossen ist, derart, daß die Klappe während des Laufens der Maschine offen steht, beim Stillstand derselben infolge Nachlassens des Öldruckes im, der Leitung aber,ein Rückgang des Kolbens und damit ein Abschluß des Lichtkegels erfolgt. PATENT CLAIMS: i. Control device of the fire damper on cinema sets with the help of a liquid, characterized in that the fire flap is on one under the effect of the oil flow generated by the lubrication pressure pump Piston is connected in such a way that the flap during the running of the machine is open when it comes to a standstill as a result of the drop in the oil pressure in the But line, a decrease of the bulb and thus a closure of the light cone takes place. 2. Reguliervorrichtung für den Öldruck in der Leitung bei einer Vorrichtung nach Anspruch i, gekennzeichnet durch .ein in die Leitung eingebautes, federbelastetes Drosselventil.2. Regulating device for the oil pressure in the line in a device according to Claim i, characterized by a spring-loaded one built into the line Throttle valve.
DES82256D Control device for the fire protection flap on cinema sets Expired DE497179C (en)

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)

* Cited by examiner, † Cited by third party
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

Cited By (2)

* Cited by examiner, † Cited by third party
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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