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Abstract
Drum shaft for winding shutters, characterized in that it essentially has a cylindrical shaped drum which, in the direction of its generatrices, has a longitudinal groove provided for inserting in it a belt bent by means of a pin key, by means of which it is subject the aforesaid ribbon for joining the slats, this drum having at the ends of its transverse axis both ends that, based on molded bearings, facilitate the turning of the assembly. (Machine-translation by Google Translate, not legally binding)
ES102714U1963-11-261963-11-26
Drum holder for rolling shutters
ExpiredES102714Y
(en)