ES192243U - Perfected stone picker (Machine-translation by Google Translate, not legally binding) - Google Patents

Abstract

Perfected stone picker, of the type comprising a fine drag unit incorporating a front action blade, disposed before the head of an ascending chain which transfers its load to another chain of such constitution, transversely arranged and in line with a tilting elevator of buckets, essentially characterized in that the frame of the drive unit laterally and on the opposite flank to which the bucket elevator emerges, is provided with a counterweight disposed at the end of a vertical portfolio that is hinged to a sturdy point of the structure of the machine, having provided in the counterweight interlocking means able to keep it fixed in their relative positions of work; and further characterized in that the transversal chain, subsequently located below the ascending chain, incorporates in its lower section, that is, the opposite to the load receptor, a tension roller arranged at the end of a telescopic and tilting arm, whose roller by its own weight, determines a loop located inferiorly in the leading end of the chain, and whose telescopic arm internally incorporates a helical spring that tends to keep the tensioner roller against the chain cushioning the tensions thereof. (Machine-translation by Google Translate, not legally binding)