Lama parmesana louver with time variable inertia (Machine-translation by Google Translate, not legally binding)

摘要

Lama for parmesana of adjustable slats with variable moment of inertia, characterized by being formed by two flexible sheets 1 and 2 of small thickness, preferably metallic, of equal length and width, externally and internally embraced in both counted by pairs of profiles 3 5 and 4-6 generally in "V" and immobilized with connecting elements 7-8 and their like distributed uniformly throughout the length of the blade, said flexible sheets interconnected as explained, originate a cavity 10 of shape rhomboidal able to accommodate profiles 9 - 9a of different height that result in slats with different thickness and moment of inertia. (Machine-translation by Google Translate, not legally binding)