Abstract: A track driven work machine including a body, a first track laying assembly pivotally connected to the body, and a second track laying assembly pivotally connected to the body. The second track laying assembly is spaced apart from the first track laying assembly in a direction transverse to a running direction of the track laying assemblies. In order to navigate uneven grounds, the track driven work machine includes a hydraulic system for synchronizing pivotal movement of the first and second track laying assembly and which is configured to pivot the second track laying assembly in an opposite direction to the first track laying assembly when the first track laying assembly is pivoted in a first direction, and vice versa.

Abstract: A track driven work machine including a body, a first track laying assembly pivotally connected to the body, and a second track laying assembly pivotally connected to the body. The second track laying assembly is spaced apart from the first track laying assembly in a direction transverse to a running direction of the track laying assemblies. In order to navigate uneven grounds, the track driven work machine includes a hydraulic system for synchronizing pivotal movement of the first and second track laying assembly and which is configured to pivot the second track laying assembly in an opposite direction to the first track laying assembly when the first track laying assembly is pivoted in a first direction, and vice versa.

Abstract: A shredder for brushwood and the like (FIG. 1) has at least one shaft carrying a helically arranged array of cutting discs surrounding the shaft. The discs are individually fixed on lugs which are generally radial to the shaft. As the brushwood is fed along generally parallel to the shaft axis it is impacted by the cutter discs, acting against one another where two parallel shafts are employed, or between the discs and a surrounding chamber wall if only a single shaft is employed. The shredded material is further fed and exhausted through a delivery passage by a current of air induced both by the discs and also by fan vanes carried by the shaft. The advantage of the discs as cutters is that if and when worn or blunted, each can be adjusted angularly on its lug to present a fresh portion of its periphery for action, without it being necessary to immediately replace or re-sharpen it.