Improvements in the manufacture of supports and assembly of curtains. (Machine-translation by Google Translate, not legally binding)

摘要

Improvements in the manufacture of the supports and assembly of curtains, characterized by being provided to them constituted by a canvas of heat-insulating material, of a support for the assembly and winding of the curtain, constituted of metal sheet folded longitudinally and of section in "U" inverted with its rounded edges, at the ends of which heads are fixed in which a rotating cylinder carrying the canvas of the curtain is mounted, provided by its lower edge with a longitudinal counterweight, in one of whose heads there is disposed a mechanism of Actuation of the shutter composed of a toothed pinion fixed on the end of the cylinder, engaging with an endless screw linked to a pulley that is driven by means of an endless cord. (Machine-translation by Google Translate, not legally binding)