DE373421C - Device for switching films provided with marginal incisions - Google Patents
Device for switching films provided with marginal incisionsInfo
- Publication number
- DE373421C DE373421C DEH91015D DEH0091015D DE373421C DE 373421 C DE373421 C DE 373421C DE H91015 D DEH91015 D DE H91015D DE H0091015 D DEH0091015 D DE H0091015D DE 373421 C DE373421 C DE 373421C
- Authority
- DE
- Germany
- Prior art keywords
- incisions
- films provided
- switching
- switching films
- strip
- 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
- G03D—APPARATUS FOR PROCESSING EXPOSED PHOTOGRAPHIC MATERIALS; ACCESSORIES THEREFOR
- G03D15/00—Apparatus for treating processed material
Landscapes
- Physics & Mathematics (AREA)
- General Physics & Mathematics (AREA)
- Projection-Type Copiers In General (AREA)
Description
Vorrichtunn zum Schalten von mit Randeinschnitten versehenen Filmen. Die bisher gebräuchlichen Kinobildstreifen sind mit seitlichen Löchern versehen, in welche die entsprechenden Zacken der Führungstrommeln, auf denen die Streifen laufen, eingreifen, so daß die Streifen der Drehung der Rolle folgen müssen und die Fortbewegung der Streifen sowohl für die Aufnahme wie für die `'Niedergabe gesichert wird- Diese Anordnung hat jedoch mannigfaltige Nachteile, unter anderen den, daß die Bildstreifen nach verhältnismäßig kurzer Zeit an den durchlöcherten Stellen einreißen, worauf sich der Riß allmählich immer mehr vergrößert und zur Zerreißung des Streifens führt. Außerdem verringern die seitlichen Perforationslöcher die zur Belichtung verfügbare Fläche. Man hat ferner schon vorgeschlagen, Einschnitte in den Filmkanten anzubringen und den Film durch von außen in diese eingreifende Glieder zu schalten.Device for switching films provided with incisions. The previously common cinema picture strips are provided with side holes, in which the corresponding prongs of the guide drums on which the strips run, intervene so that the strips must follow the rotation of the roller and the movement of the strips secured both for the recording and for the '' laying down This arrangement, however, has a number of disadvantages, including the fact that the image strips at the perforated areas after a relatively short time tear, whereupon the crack gradually enlarges and tears of the strip leads. In addition, the side perforation holes reduce the Exposure available area. It has also been suggested to make cuts in to attach the film edges and the film by externally engaging members to switch.
Die Erfindung verwendet Filme mit solchen Einschnitten, und zwar sollen die Filmränder nach Schlangenlinien oder ähnlich verlaufenden Kurven verschnitten sein. Die drehbare Führungsrolle erhält gemäß der Erfindung an beiden Seiten einen den Filmrändern genau entsprechenden und 1(2 mm erhöhten Rand, so daß der Streifen in der Vertiefung der Oberfläche der Rolle fest eingebettet liegt. In dieser Vertiefung wird er durch zweckmäßig angebrachte Druckrollen festgehalten. Werden nun die Führungsrollen gedreht, so muß der Streifen, der aus der Vertiefung nicht herausspringen kann, mitfolgen. Der erhöhte Rand kann auch verstellbar angeordnet sein.The invention uses films with such incisions, specifically intended the edges of the film cut according to serpentine lines or similar curves be. According to the invention, the rotatable guide roller receives one on both sides corresponding to the film edges and 1 (2 mm raised edge so that the strip is firmly embedded in the recess of the surface of the roller. In this recess it is held in place by appropriately installed pressure rollers. Are now the leadership roles rotated, the strip that cannot jump out of the recess must follow. The raised edge can also be arranged to be adjustable.
In der beiliegenden Zeichnung ist a der Bildstreifen, b die drehbare Führungsrolle, Abb. 2 e-e der erhöhte Rand der letzteren: d ist die Druckvorrichtung, die ein Ausspringen des Streifens aus der Vertiefung der Rolle verhindert. Abb.3 zeigt den in der Vertiefung laufenden Bildstreifen.In the accompanying drawing, a is the picture strip, b the rotating one Guide roller, fig. 2 e-e the raised edge of the latter: d is the printing device, which prevents the strip from jumping out of the recess of the roller. Fig 3 shows the image strip running in the depression.
Claims (2)
Priority Applications (1)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
DEH91015D DE373421C (en) | Device for switching films provided with marginal incisions |
Applications Claiming Priority (1)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
DEH91015D DE373421C (en) | Device for switching films provided with marginal incisions |
Publications (1)
Publication Number | Publication Date |
---|---|
DE373421C true DE373421C (en) | 1923-04-12 |
Family
ID=7166047
Family Applications (1)
Application Number | Title | Priority Date | Filing Date |
---|---|---|---|
DEH91015D Expired DE373421C (en) | Device for switching films provided with marginal incisions |
Country Status (1)
Country | Link |
---|---|
DE (1) | DE373421C (en) |
Cited By (1)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
DE1008015B (en) * | 1955-01-17 | 1957-05-09 | Acec | Mechanism for driving the sound carrier for sound recording and playback devices |
-
0
- DE DEH91015D patent/DE373421C/en not_active Expired
Cited By (1)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
DE1008015B (en) * | 1955-01-17 | 1957-05-09 | Acec | Mechanism for driving the sound carrier for sound recording and playback devices |
Similar Documents
Publication | Publication Date | Title |
---|---|---|
DE2146596A1 (en) | Photography album sheet | |
DE373421C (en) | Device for switching films provided with marginal incisions | |
US1773949A (en) | Photogravure roll | |
DE488105C (en) | Dusting device for bronzing or similar machines with rotating dust belts | |
DE815895C (en) | Device in which film strips with a thickness of a few tens of microns are guided over non-toothed rollers when wet | |
DE102014102552B4 (en) | Punching device and method for punching corrugated cardboard | |
DE407029C (en) | Film switching device | |
DE423954C (en) | Device for stretching foils on the forme cylinders of rotary printers | |
DE510013C (en) | Method for fastening the sheet metal in copying machines, especially those of a vertical type | |
DE444514C (en) | Fabric tensioning device for embroidery thread cutting machines | |
DE927985C (en) | Endless idler belt for film printing machines | |
DE413234C (en) | Method and device for the production of metal sheets with bends at an angle to one another | |
DE454506C (en) | Roofing | |
DE437184C (en) | Replaceable rubber tread | |
DE403895C (en) | Calculating apparatus | |
DE1016112B (en) | Cutting plate with angled clamping edge | |
DE383591C (en) | Multiplier | |
DE830653C (en) | Execution tape made of textile materials for sheet delivery devices of printing machines | |
DE410892C (en) | Device for rolling and simultaneously advancing a set of sweets | |
DE650892C (en) | Rubber seal for heat exchange plates | |
DE489262C (en) | Machine for applying glue | |
DE929848C (en) | Cover rail for loose-leaf binders with perforations to accommodate the metal strips used to line up the documents | |
DE1511434A1 (en) | Self-adhesive roll with holder, the outward-facing adhesive surface of which is used to remove hair, lint, scalp flakes, etc. and / or to align the pile of fabrics, suede and the like | |
DE657434C (en) | Feed roller pair on sewing machines | |
DE712371C (en) | Device for the production of profile frames on sheet metal |