English

Curtains with revolving bar

custom systems

In the mechanical systems with revolving bar the curtain is composed by a unique tight tail that is fixed at the top.The opening happens through the rounding of the curtain on a wrapping roll that is made to climb toward the arch of the proscenium rotating on its own axle.It is used above all for the installation in proximity of the proscenium of Frontal projection screens or Rear-projection screens, but its use is not rare with backdrops made of tulle used for the openings of show or changes of scene.
View all
A classical scheme of realization of the Curtain with revolving bar: the one with manual operation, deviation under the stage and passage for the descent of the cage of the counterweights.
5P - Polycinal motorized screen
A big 5P - Polycinal motorized screen (20 m wide) with a screen made of PBO - Bianco Ottico. CasinÚ de la Vallťe
A modern 5P - Polycinal motorized screen, that uses the scheme of the Curtain with revolving bar. 12 m wide, it is endowed with a screen for rear-projection RNB - Nebbia and with an engine in a central position.
Detail of the ''rotating tube'' of another 5P - Polycinal motorized screen installed on the stage of a small polyvalent theater.
A 5P - Polycinal motorized screen during its operation.
In the mechanical systems with revolving bar the curtain is composed by a unique tight tail that is fixed at the top.The opening happens through the rounding of the curtain on a wrapping roll that is made to climb toward the arch of the proscenium rotating on its own axle.It is used above all for the installation in proximity of the proscenium of Frontal projection screens or Rear-projection screens, but its use is not rare with backdrops made of tulle used for the openings of show or changes of scene.
The system is realized with standardized systems that foresee the motorization and its protection in a special Truss structure (look the page devoted to 5P - Polycinal motorized screens, that represents the modern evolution of the ancient revolving bar curtain).
Variations
the size (standard width from 6 m to 12 m, but the realization with superior widths, up to 20 m or beyond, is not infrequent)
the position of the engine (central or side)
the composition of the curtain or the screen (tulle, film for frontal projections, film for rear-projections, etc.)

Video & Documentation

Test of a Polycinal Screen 12 m

See also ...

5P - Policinale

Motorized roll-up screens