Generation of Lyapunov Functions by Neural Networks

A four track paver is disclosed having a frame which telescopes for transport to reduce the dimension of the machine in the direction of paving machine travel. A rectilinear tractor frame is provided. The frame includes four crawler tracks, one at each corner of the frame. The crawler tracks are directly supported on a hydraulic cylinder and mounted for pivotal movement about the axis of the hydraulic cylinder. The frame telescopes at side bolsters between the leading and trailing crawler tracks at the sides of the machine. When expanded, the paving machine has the full dimension required for paving. When contracted, the paving machine has a profile allowing convenient transport. Most importantly, such expansion and contraction of the machine in the direction of paving travel does not require substantial time for disassembly. As a consequence, a convenient method of loading and off loading to a hauling flatbed trailer exists. With the frame contracted at the side bolsters and the tracks pivoted parallel to the pavement spanning dimension of the frame, both frame and paving kit are elevated and a transporting flatbed trailer moved under the paver. Supports are installed to relieve the paving kit from the full weight of the frame, and the tracks lifted. There results a four track paver profile transportable within the maximum load width envelope which can be legally transported on a highway without a pilot car (in the U.S.A. this is 12' or 3.657 M) with minimal machine disassembly for transport.