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Priority to ES0080035UpriorityCriticalpatent/ES80035Y/en
Publication of ES80035UpublicationCriticalpatent/ES80035U/en
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Publication of ES80035YpublicationCriticalpatent/ES80035Y/en
Improved rotary harrow, characterized in that it is constituted essentially by an axis capable of turning both left and right and in which there are disposed along its entire length a series of discs in whose peripheries are arranged a series of blades, which they adopt in their placing a helical shape; this axis receives its turning movement, from the traction tractor, and through a transmission system constituted by a pinion, a chain, a gear and a friction clutch, which can be placed both to the left and to the right of the shaft of rotation carrier of the blades, which is protected by a shell. (Machine-translation by Google Translate, not legally binding)