Abstract: A vertical-axis wind rotor configured by concave-convex type airfoil profiles in the form of vertical helical protrusions, tilted towards counter-rotation and twisted around, the chord decreasing, where both ends are finished in the form of sharklets rotated towards the upper surface so as to eliminate the vortex, and distributed in a circular pattern around the rotation shaft thereof. The angular arrangement of the chord of the section of the profile with a spoke with respect to the shaft of the rotor is particular for making the profile work under lift conditions before reaching the normal under drag forces and complementing them, eliminating jerking, with the direction of rotation being indicated by the Coriolis effect and determining the radial distribution, the radius, the chord, the profile, and the number of them, which confers to the rotor the maximum terminal velocity at which it slows down, being maintained by the Magnus effect.

Abstract: The present invention relates to a pressure-applying telescopic spacer formed by two attached tubes telescopically coupled to one another with sheet metal rings pushed by a spring for establishing a wedging and driving of the sheet metal rings on the inner tube and blocking the axial movement of the latter with respect to the outer tube. The assembly of sheet metal rings and push spring being located in a head belonging to a sleeve with anchoring devices for the fixing thereof on the outer tube. The body determined by the sleeve and the head or expansion forming a handle for manually handling the spacer. Support plates are connected with movable devices for adjusting the spacing length of the spacer itself to the desired measurement are included at the ends.

Abstract: The present invention relates to a pressure-applying telescopic spacer in which the improvements can be applied, being formed by two tubes (1 and 2) telescopically coupleable to one another with a manually operated blocking element between them, its ends having supports (7 and 8) on the elements to be spaced. The improvements consist of placing a spring (14) inside the telescopic tubes (1 and 2) which can be an expansion or compression spring in order to retract or elongate the telescopic tubes (1 and 2) automatically once the blocking element between them has been released with a single hand, whether the spacer itself is in the vertical, inclined, or horizontal position.

Abstract: The present invention relates to a pressure-applying telescopic spacer, which is formed by two attached tubes (1 and 2) telescopically coupled to one another, with sheet metal rings (4) pushed by a spring (5) for establishing a wedging and driving of said sheet metal rings (4) on the inner tube (2) and blocking the axial movement of the latter with respect to the outer tube (1), this assembly of sheet metal rings (4) and push spring (5) being located in a head (6) belonging to a sleeve (7) with anchoring means (8) for the fixing thereof on the outer tube (1), said body determined by the sleeve (7) and the head or expansion (6) forming a handle for manually handling the spacer. Support plates (9) connected with movable means for adjusting the spacing length of the spacer itself to the desired measurement are included at the ends.