Device generating closed curves of different natures, especially suitable for carrying out applications or making surveys on surfaces that present unevenness or unevenness in a third dimension, essentially characterized in that it comprises two crankshafts, one of whose ends of each crankshaft is applicable to a respective rotating engine member each one of whose crankshafts is provided with at least two elbows, being articulated between each elbow of a crankshaft and the homologous elbow of the other crankshaft a corresponding extendable stringer, and having been articulated, between one and another spar, one or more also extensible arms, one of whose ends of each arm protrudes beyond one of its points of articulation, at the ends of which arms a surface application or recognition head is applicable, such as, for example, a projector element of a product or an energy detector element, in s known, all operably disposed to the rotation of crankshafts and spars corresponding arms made a certain movement and, ultimately, their delivery ends of said heads respective closed curves describe different natures. (Machine-translation by Google Translate, not legally binding)
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