Patent ID: 8118518
Filing Date: 2012-02-21
Classification: E01C

Abstract:
1. An adjustable width paving machine configured to move in a travel direction for spreading, leveling and finishing concrete into a form having a generally upwardly exposed, finished concrete surface and terminating in lateral concrete sides, the paving machine comprising a main frame including a center module, a bolster in a vicinity of each lateral end of the center module, first and second crawlers secured to each bolster, the crawlers being pivotable about substantially vertical axes between the travel direction and a lateral direction that is transverse to the travel direction, and first and second support beams extending from the center module, attached to an inner side of each bolster facing the center module and having a length greater than a minimum distance between the inner sides of the bolsters so that free ends of the support beams extend past the respective inner sides of the bolsters, each bolster having openings formed to receive and permit passage of the free ends of the support beams attached to the other bolster past the respective inner sides of bolsters to which the free ends of the support beams are not attached.