AT120987B - Device for automatic power interruption in the event of a film break in cinema projection apparatus. - Google Patents

Device for automatic power interruption in the event of a film break in cinema projection apparatus.

Info

Publication number
AT120987B
AT120987B AT120987DA AT120987B AT 120987 B AT120987 B AT 120987B AT 120987D A AT120987D A AT 120987DA AT 120987 B AT120987 B AT 120987B
Authority
AT
Austria
Prior art keywords
event
power interruption
automatic power
projection apparatus
film break
Prior art date
Application number
Other languages
German (de)
Original Assignee
Blunt & Mc Cormack Ltd
Priority date (The priority date 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 date listed.)
Filing date
Publication date
Application filed by Blunt & Mc Cormack Ltd filed Critical Blunt & Mc Cormack Ltd
Application granted granted Critical
Publication of AT120987B publication Critical patent/AT120987B/en

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  • Projection-Type Copiers In General (AREA)
  • Projection Apparatus (AREA)
  • Facsimiles In General (AREA)

Description

  

   <Desc/Clms Page number 1> 
 



  Vorrichtung zur   automatischen Stromunterbrechung bei Filmriss   in Kinoprojektions- apparaten. 
 EMI1.1 
 



   Mit   A   ist die Zahntrommel und mit B die bei b drehbar an dieser Trommel gelagerte Fallklinke bezeichnet. Am freien Ende der Klinke B ist dieselbe mit zwei, normal von den beiden ebenen Klinken- seitenflächen abstehenden Zapfen   C, Cl   ausgestattet. Der innere dieser Zapfen C ragt in einen Schlitz D der Trommel   A   hinein. 



   Unterhalb der Zahntrommel   Li   und in die Bahn des äusseren Zapfens Cl hineinragend ist der Arm eines federbelasteten Schalters E vorgesehen, dessen oberes Ende in eine Klaue e übergeht. Wird die Fallklinke B nun in die strichliert dargestellte Lage geschleudert, dann trifft der Zapfen Ci zufolge der nicht unterbrochenen Trommeldrehung im Verlaufe seiner Kreisbahn auf die Klaue e des Sehalterarms B auf, dieser Arm kommt hiedurch in die   Unterbrechungsstellul1g   und schaltet Lampe und Motor aus. An der Zahntrommel ist noch ein Anschlag vorgesehen, der die Fallklinke an einer Überschreitung der strichliert dargestellten Lage hindert. 



   Es können auch zwei Klinken an der   ZahntroJ1lmel   vorgesehen werden, die man dann an beiden Seiten derselben anordnet. In diesem Falle werden die beiden   Sehalterarme   miteinander zwecks Betätigung eines einzigen Schalters verbunden. 

**WARNUNG** Ende DESC Feld kannt Anfang CLMS uberlappen**.



   <Desc / Clms Page number 1>
 



  Device for automatic power interruption in the event of a film break in cinema projection equipment.
 EMI1.1
 



   A denotes the toothed drum and B denotes the latch which is rotatably mounted on this drum at b. At the free end of the pawl B, the same is equipped with two pins C, Cl projecting normally from the two flat pawl side surfaces. The inner of these pins C protrudes into a slot D of the drum A.



   The arm of a spring-loaded switch E is provided below the toothed drum Li and protrudes into the path of the outer pin Cl, the upper end of which merges into a claw e. If the pawl B is now thrown into the position shown in dashed lines, the pin Ci hits the claw e of the holder arm B in the course of its circular path due to the uninterrupted rotation of the drum, this arm comes into the interruption position and switches off the lamp and motor. A stop is also provided on the toothed drum, which prevents the latch from exceeding the position shown in broken lines.



   Two pawls can also be provided on the tooth drum, which are then arranged on both sides of the same. In this case, the two holder arms are connected to one another for the purpose of actuating a single switch.

** WARNING ** End of DESC field may overlap beginning of CLMS **.

Claims (1)

PATENT-ANSPRÜCHE : 1. Vorrichtung zur automatischen Stromunterbrechung bei Filmriss in Kinoprojpktiol1sappa- raten, gekennzeichnet durch eine mit einem ihrer Enden an der seitliehen Begrenzungswand des Zahn- trommelrades schwingbar gelagerte Klinke, <Desc/Clms Page number 2> EMI2.1 3. Vorrichtung nach Anspruch 2, dadurch gekennzeichnet, dass einer der wegragenden Zapfen. teile in einen Schlitz des Zahntrommelrades hineinragt. EMI2.2 PATENT CLAIMS: 1. Device for automatic power interruption in the event of a film break in cinema projection apparatus, characterized by a pawl which is pivotably mounted with one of its ends on the lateral boundary wall of the toothed drum wheel <Desc / Clms Page number 2> EMI2.1 3. Device according to claim 2, characterized in that one of the protruding pins. parts protrudes into a slot of the toothed drum wheel. EMI2.2
AT120987D 1928-07-04 1929-06-22 Device for automatic power interruption in the event of a film break in cinema projection apparatus. AT120987B (en)

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
GB120987X 1928-07-04

Publications (1)

Publication Number Publication Date
AT120987B true AT120987B (en) 1931-01-26

Family

ID=9998360

Family Applications (1)

Application Number Title Priority Date Filing Date
AT120987D AT120987B (en) 1928-07-04 1929-06-22 Device for automatic power interruption in the event of a film break in cinema projection apparatus.

Country Status (1)

Country Link
AT (1) AT120987B (en)

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