Helice of alabas with variable inclination. (Machine-translation by Google Translate, not legally binding)

摘要

Blade propeller with variable inclination, characterized in that each one of the blades that comprise it is constituted by an independent piece, endowed at its base with a projecting cylindrical stump, which is able to pass through the cube by a corresponding adjusted radial aperture, and that presents in the part that is located inside it, a peripheral race, in which two half-rings of retention fit, which are retained, in turn, in this position, by means of a bowl that is applied on the limb of the stump, and that is conveniently immobilized, determining the blockage of the whole assembly in the assembly position, and fixing the corresponding blade in the more or less inclined position in which in each case it has been placed. (Machine-translation by Google Translate, not legally binding)