Abstract: Machine for the definition of a material for the burying of pipes, especially a padding machine and/or crusher, in particular adapted to cover said pipe with the corresponding material, preferably consisting of the waste material of the excavation for laying the pipes, comprising a lifting device configured to transfer the material from a collection area to a storage area, by means of a conveyor belt comprising a plurality of sections mechanically associated to towing means, for the movement thereof, in which said sections alternate in such a way that an overlying section is continuously in an overlapping relationship with the adjacent underlying section which precedes it and which follows it.

Abstract: A track shoe deflection limiter is fastened to each outboard edge portion of each track shoe of an endless track assembly. Each deflection limiter has a first arm portion and a second arm portion. The first arm portion of each limiter overlaps a portion of the adjacent track shoe and is in close proximity to the second arm portion of the limiter which is fastened on the adjacent track shoe. When wide track shoes are used on a track-type vehicle, the outer end portions of the shoes are often twisted and deflected, relative to adjacent shoes, by an external force, such as a rock which the track shoe passes over. The shoe deflection is transferred to the track joints, including the track links, bushings, pins, and seals, which results in accelerated wear of these track assembly components.

Abstract: Each track shoe in a link-shoe assembly built in a track chain for a track-type vehicle is lined with an elastomer pad. One elastomer pad in one track shoe abuts another adjacent elastomer pad in compression in a manner that when adjacent track links effect a relative pivotal movement, the adjacent elastomer pads are further compressed together and produce an elastic resistance for track links, thereby eliminating a sag in a track chain.Preferably, each elastomer pad is secured to each track shoe through the medium of a plate spring. The size of the elastomer pad is so selected that adjacent pads are compressed together, when assembled.Alternatively, adjacent corners of elastomer pads may be rounded so as to provide a smooth contact therebetween, when the adjacent track links effect a relative pivotal movement, or may be covered with extended portions of the plate spring to reduce wear of the elastomer pads.