Abstract: A solar tracker provides sun tracking to solar panels, and includes several gearboxes for one single motor. In an embodiment, the solar tracker includes a torsion beam. defining a longintudinal direction of rotation and rotating the solar panels; motor, with motor shaft; first gearbox, at torsion beam at first position, and connected to motor shaft for transmitting to torsion beam rotation of motor shaft; second (Tarbox, mounted to torsion beam at second position further from motor than first position; and primary shaft, coaxial to motor shaft, and connected to second gearbox, for transmitting to second gearbox rotation of the motor shaft. Gearboxes define embedments withstanding torsion moment caused by wind loads for restricting rotation of torsion beam. It provides higher resistance to wind loads and allows for longer solar trackers.

Abstract: The invention is directed to a construction tube which has a circular cross section, wherein the circular cross section including two circular stretches and two flat stretches diametrically opposite from each other which define two parallel planes interrupting the circular stretches. It enables the advantages of construction tubes with a circular cross section and the advantages of tubes with a polygonal cross section to be combined. The construction tube can be joined to a connectable element, which is preferably selected from another construction tube and an output shaft of a reducer of a solar tracker, in particular, using inner parts and/or clamps. The construction tube of the invention has a special application in solar collection systems, making up a torsion shaft of a solar tracker.

Abstract: Fork head for gripping thin objects having a main frame attached to a mobile element on a lifting vehicle; a mobile frame, with two fixed, parallel arms and a gripping arm that moves from and towards the fork arms to trap a thin object hanging between the two fork arms, said mobile frame being able to move horizontally along a transversal guide attached to the main frame; wherein the gripping arm has end portions superimposed on the two arms of the frame and has a length (L) in a transversal direction equal to or greater than a fork width (w) defined by the distance between the opposite outer edges of the two fork arms.

Abstract: Fork head for gripping thin objects having a main frame attached to a mobile element on a lifting vehicle; a mobile frame, with two fixed, parallel arms and a gripping arm that moves from and towards the fork arms to trap a thin object hanging between the two fork arms, said mobile frame being able to move horizontally along a transversal guide attached to the main frame; wherein the gripping arm has end portions superimposed on the two arms of the frame and has a length (L) in a transversal direction equal to or greater than a fork width (w) defined by the distance between the opposite outer edges of the two fork arms.