FI60618B - BLAENDNINGSANORDNING FOER SKYLTER - Google Patents

Description

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11 UTLAGG NI NGSSKRI FT

**? C (45) Patent granted on 10 February 1932

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National Board of Patents and Registration of Finland Nihtlvlksipsnofl and moonL |

Patent · och registerstyrelsen Anteksn utiagd och uti.skriftcn pubikerad 30.10.ol (32) (33) (31) Pyydetty ucuoikuus —Bugird prloritet 06-11-7 ^

Norway-Norway (NO) 7 ^ 3993 (71) Norlux A.S, Risuin, 1751 Halden, Norway-Norway (NO) (72) Per Danielsen, Halden, Leif Saenger, Halden,

The present invention relates to a signage device for advertising or traffic purposes or the like for selectively displaying text or symbols and for dimming text or symbols when viewed from one direction, which device comprises a transparent plate on one side of which the text or symbols are arranged, and a second transparent plate which, together with the former plate, delimits a cavity which is connected by wires to the container containing the liquid. In this case, the text or signs on the signs can be dimmed or deactivated in whole or in part for the desired time.

For this purpose, and especially for signs with a light source on the back, dimming with retractable dimming curtains or reversible blinds has been proposed in the past, but these devices with the necessary operating mechanisms increase the size of the sign and require large curtain rolls or long blinds on large signs. to prevent their central part from bending down, and it has been shown that effective dimming is not always achieved in a simple and easy manner.

6061 8

In addition, it is previously known to adapt dimmable signs by means of a liquid in such a way that the liquid forms the text of the sign, which can be dimmed by lowering the liquid. off. This results in the liquid either being passed through a flexible transparent pipe or arranged between the transparent adjacent plates transversely between the partitions arranged between the plates, which partitions delimit smaller spaces corresponding to the details of the text, each of which must be connected to the liquid source.

The production of signs of the above-mentioned type with bends of transparent pipes or necessary spaces between adjacent plates with feed channels is very expensive and constitutes a substantial limitation in the formatting of the sign text, while confusing the sign can only occur by removing the text.

The present invention relates to a confusing device for conventional types of signs comprising a plate of transparent material, on one side of which a selected color against the background contrasting color is formed in the form of images, explanations and letters of the text.

The invention is characterized in that the text or symbols are fixedly attached in the viewing direction to the outer surface of the rear plate, said two plates being parallel and rigid material to keep their distance constant, and the container containing an opaque liquid and provided with means for completely filling the cavity. with said liquid and, accordingly, empty it.

The text may be placed on the front or back side, which is the illuminated side of the assembled sign, and the latter arrangement is advantageous, ensuring that the profile of the text will not appear on the dimmed sign.

A dimming liquid, the color of which may correspond to the color of the text, is suitably introduced and removed through an inlet pipe at the bottom of the sign, while an air duct is fitted at the top.

The invention will be explained in more detail below with reference to the accompanying drawing, in which Fig. 1 shows a completely schematic sign according to a preferred embodiment of the invention, Fig. 2 shows a vertical section of the sign and Fig. 3 shows a front view of an assembled traffic sign.

In the drawing, Figures 1 and 2 show a sign generally shown at 1, comprising a front panel 2 and a back panel 3, the panels being circumferentially connected to the side wall so as to form a liquid-tight cavity 4 therebetween. The panels are made of a transparent material, preferably plastic such as light-colored acrylic and the text may be arranged on either the front panel or the back panel, but more suitably turned to the back side for the above-mentioned reason towards the light source.

The text of the sign 5, shown here by the letters AD, is made in the usual way in a dark contrasting color, e.g. a so-called blue traffic color, which has the necessary clarity with respect to the light contrasting color of the sign.

In the present case, the sign is confused by filling the space 4 through a tube 6 opening into its lower part with a liquid, for example a color corresponding to the color of the text or another opaque color, whereby the whole front part of the sign forms the same color. becomes invisible. The space 4 is provided at its upper end with an exhaust pipe 7 for air when filling the space. The emptying of the space A in order to bring the sign into the operating space can be arranged to be carried out, via a pipe 6 or via a drainage pipe (not shown) specially adapted for this purpose.

In the embodiment described above, the dimmed sign may have a color corresponding to the blue color used for the text.

The fluid used to fill the space between the signs must be antifreeze that can operate in all temperature conditions to which the sign may be subjected.

As shown in Fig. 2, the sign is usually provided with a rear container 11 in which fluorescent tubes 12 are mounted to illuminate the sign in the dark.

Claims (1)

1. A signage device for advertising or traffic purposes or the like for selectively displaying text or symbols and confusing the text or symbols when viewing a sign from one direction, comprising a transparent plate on one side of which the text or symbols are arranged and a second transparent plate in combination with the former; delimiting a cavity in communication with the container containing the liquid, characterized in that the text (5) or symbols are fixedly attached in the viewing direction to the outer surface of the rear plate (3), said two plates (2, 3) being parallel and rigid material for keeping their distance between them constant, and that the container contains an opaque liquid and is provided with means by which the cavity (4) can be completely filled with said liquid and emptied accordingly.