AT84954B - Sheet film holders for development purposes. - Google Patents

Sheet film holders for development purposes.

Info

Publication number
AT84954B
AT84954B AT84954DA AT84954B AT 84954 B AT84954 B AT 84954B AT 84954D A AT84954D A AT 84954DA AT 84954 B AT84954 B AT 84954B
Authority
AT
Austria
Prior art keywords
sheet film
development purposes
sheet
film holders
film
Prior art date
Application number
Other languages
German (de)
Inventor
Friedrich Geissler
Original Assignee
Friedrich Geissler
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 Friedrich Geissler filed Critical Friedrich Geissler
Application granted granted Critical
Publication of AT84954B publication Critical patent/AT84954B/en

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Description

  

   <Desc/Clms Page number 1> 
 



    Planfilmhalter für Entwicklungszwecke.   



   Den Gegenstand der Erfindung bildet ein Planfilmhalter für Entwicklungszwecke, der sich von den bekannten Einrichtungen insbesonders dadurch unterscheidet, dass er auf einfache Weise hergestellt werden kann und ausser der mechanischen Fixierung des Planfilms noch ein vollständiges Plattdrücken desselben durch pneumatische Wirkung erzielt. 



   In der Zeichnung stellt Fig. i eine Vorderansicht des Plattfilms, Fig. 2 einen Schnitt der Fig. i dar. Jeder Planfilmhalter besteht aus einem Grundblatt A, in welches i cm vom Rande und untereinander entfernt Löcher a von   1/2     C111   Durchmesser gestanzt sind und aus vier Streifen B, welche zu beiden Seiten mittels Zelluloidösen Ö derart befestigt sind, dass eine Breitseite des Grundblattes   A   mit einer Längsseite eines Streifens B zusammenfällt und dass vom Streifen B nach innen zu   ein / CM   breiter Falz zum Einstecken des Filmes F freibleibt. Am geeignetsten wird das   Gundblatt A   und die Streifen B aus Zelluloid oder Zellon hergestellt.

   Durch die gestanzten Löcher a kann die Luft zwischen den Grundblättern   A   und den Filmen F. entweichen, woraus sich ergibt, dass der äussere Luftdruck die Planfilme F gegen die Grundblätter   A   presst und ein vollkommenes Plattdrücken der Planfilme erfolgt. Der in die durch die Streifen B und das Grundblatt   A   gebildeten Falzen eingelegte Film wird demnach nicht nur mechanisch, sondern auch pneumatisch gehalten. 



   PATENT-ANSPRÜCHE : i. Halter für Planfilme zur Entwicklung, insbesonders zur   Standentwieklung,   Fixierung usw., gekennzeichnet durch ein Grundblatt   (A),   welches auf den beiden Breitseiten mit schmalen Streifen (B) durch Ösen (Ö) oder Klammern verbunden ist, zwecks
Bildung von Aufnahmsfalzen für die Filmblätter. 
 EMI1.1 
 

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



   <Desc / Clms Page number 1>
 



    Sheet film holders for development purposes.



   The subject of the invention is a sheet film holder for development purposes, which differs from the known devices in particular in that it can be produced in a simple manner and, in addition to the mechanical fixation of the sheet film, also achieves complete flattening of the sheet film by pneumatic action.



   In the drawing, FIG. 1 shows a front view of the flat film, FIG. 2 shows a section of FIG. 1. Each sheet film holder consists of a base sheet A, in which holes a 1/2 C111 diameter are punched 1 cm from the edge and from each other and of four strips B, which are fastened on both sides by means of celluloid loops Ö in such a way that one broad side of the base sheet A coincides with one long side of a strip B and that a CM wide fold remains free from the strip B to the inside for inserting the film F. Most suitably, the base sheet A and the strips B are made of celluloid or cellon.

   The air between the base sheets A and the films F can escape through the punched holes a, as a result of which the external air pressure presses the flat films F against the base sheets A and the flat films are completely flattened. The film inserted into the folds formed by the strips B and the base sheet A is therefore not only held mechanically but also pneumatically.



   PATENT CLAIMS: i. Holder for sheet films for development, especially for stand development, fixation, etc., characterized by a base sheet (A), which is connected on the two broad sides with narrow strips (B) by eyelets (Ö) or clips for the purpose
Formation of receiving folds for the film sheets.
 EMI1.1
 

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

 

Claims (1)

EMI1.2 **WARNUNG** Ende CLMS Feld Kannt Anfang DESC uberlappen**. EMI1.2 ** WARNING ** End of CLMS field may overlap beginning of DESC **.
AT84954D 1920-01-24 1920-01-24 Sheet film holders for development purposes. AT84954B (en)

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
AT84954T 1920-01-24

Publications (1)

Publication Number Publication Date
AT84954B true AT84954B (en) 1921-07-25

Family

ID=3605956

Family Applications (1)

Application Number Title Priority Date Filing Date
AT84954D AT84954B (en) 1920-01-24 1920-01-24 Sheet film holders for development purposes.

Country Status (1)

Country Link
AT (1) AT84954B (en)

Cited By (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US2436882A (en) * 1945-06-01 1948-03-02 Harry R Meredith Double reversible film developing hanger

Cited By (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US2436882A (en) * 1945-06-01 1948-03-02 Harry R Meredith Double reversible film developing hanger

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