DE502856C - Opaque curtain for darkening rooms, especially photographic darkrooms - Google Patents
Opaque curtain for darkening rooms, especially photographic darkroomsInfo
- Publication number
- DE502856C DE502856C DEG77207D DEG0077207D DE502856C DE 502856 C DE502856 C DE 502856C DE G77207 D DEG77207 D DE G77207D DE G0077207 D DEG0077207 D DE G0077207D DE 502856 C DE502856 C DE 502856C
- Authority
- DE
- Germany
- Prior art keywords
- rooms
- darkening
- opaque curtain
- darkrooms
- curtain
- 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
- G03D17/00—Dark-room arrangements not provided for in the preceding groups; Portable dark-rooms
Landscapes
- Physics & Mathematics (AREA)
- General Physics & Mathematics (AREA)
- Curtains And Furnishings For Windows Or Doors (AREA)
Description
Lichtundurchlässiger Vorhang zum Verdunkeln von Räumen, insbesondere von photographischen Dunkelkammern Zum Verdunkeln von Räumen, insbesondere Dunkelkammern, Röntgenaufnahmeräumen usw., werden aufrollbare Vorhänge benutzt, mittels welcher die Fensteröffnungen o. dgl. lichtdicht verschlössen werden können.Opaque curtain for darkening rooms, in particular of photographic darkrooms To darken rooms, especially darkrooms, X-ray rooms, etc., roll-up curtains are used, by means of which the window openings or the like can be closed light-tight.
Gegenstand der Erfindung ist ein derartiger Vorhang, der sich dadurch kennzeichnet, daß er in der einen Richtung genügend biegsam ist, um aufgerollt werden zu können, während er in der anderen Richtung genügend steif ist, um bei seitlicher Führung gegen Luftzug widerstandsfähig zu sein, so daß er sich nicht durchwölbt und dadurch seitlich von-den Führungsspalten sich abhebt.The invention is such a curtain, which is thereby indicates that it is flexible enough in one direction to be rolled up to be able to, while it is sufficiently stiff in the other direction to be able to with lateral Guide to be resistant to drafts so that it does not bulge and thereby stands out laterally from the guide gaps.
Gemäß der Erfindung besteht dieser Vorhang aus einem Gerippe von durch Fäden miteinander verbundenen parallelen Stäben, vorzugsweise aus Holz, und einem einseitigen oder beiderseitigen Überzug aus einer plastischen, nach dem Erhärten biegsamen Masse, insbesondere Linoleum, Linkrusta, Gummi o. dgl. Durch diese aufgewalzte Masse wird die Lichtundurchlässigkeit erzielt.According to the invention, this curtain consists of a framework of through Threads connected to each other parallel rods, preferably made of wood, and one one-sided or two-sided coating of a plastic, after hardening Flexible mass, in particular linoleum, Linkrusta, rubber or the like. Rolled on by this Mass the opacity is achieved.
Die Zeichnung veranschaulicht eine Ausführungsform eines solchen Vorhanges in Abb. i in Ansicht und in Abb. z =im Schnitt.The drawing illustrates an embodiment of such a curtain in Fig. i in view and in Fig. z = in section.
Die Stäbe i sind in einer Ebene hintereinander durch Fäden a miteinander verbunden, so daß eine in einer Richtung biegsame und in der anderen Richtung steife Platte entsteht. Auf einer oder beiden Seiten sind durch Aufwalzen oder Aufpressen Schichten 3 aus Linoleum, Gummi, Linkrusta o. dgl. aufgelegt. Es muß dies eine Masse sein, die dauernd biegsam bleibt und die möglichst plastisch beim Rufpressen oder Aufwalzen ist, um sich in die Fugen -zwischen den einzelnen Stäben einzuschmiegen.The bars i are in a plane one behind the other by threads a with one another connected so that one is flexible in one direction and stiff in the other direction Plate is created. On one or both sides are by rolling or pressing Layers 3 made of linoleum, rubber, Linkrusta or the like. Applied. It must be a mass that remains permanently flexible and that is as plastic as possible when pressing or Rolling up is to nestle in the joints between the individual bars.
Claims (1)
Priority Applications (1)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
DEG77207D DE502856C (en) | Opaque curtain for darkening rooms, especially photographic darkrooms |
Applications Claiming Priority (1)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
DEG77207D DE502856C (en) | Opaque curtain for darkening rooms, especially photographic darkrooms |
Publications (1)
Publication Number | Publication Date |
---|---|
DE502856C true DE502856C (en) | 1930-07-17 |
Family
ID=7136396
Family Applications (1)
Application Number | Title | Priority Date | Filing Date |
---|---|---|---|
DEG77207D Expired DE502856C (en) | Opaque curtain for darkening rooms, especially photographic darkrooms |
Country Status (1)
Country | Link |
---|---|
DE (1) | DE502856C (en) |
-
0
- DE DEG77207D patent/DE502856C/en not_active Expired
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