FIELD: construction.
SUBSTANCE: device for provision of information comprising a cloth installed on a composite frame, at the sides of which there are rotary edges of the cloth. Each rotary edge is made as at least double-layer in the form of lining applied onto the cloth material in the prestressed elastically deformed condition of the latter and attached with it to preserve tension of the lined cloth material in the area of fixation. The cloth is installed on the frame in the condition of elastically stretched deformation and is fixed with edges resting against the frame in pairs.
EFFECT: high-quality, multiple and efficient tension of a cloth during a long-term service life.
10 cl, 6 dwg
| Title | Year | Author | Number |
|---|---|---|---|
| TRENCH TANK | 0 |
|
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|
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