A method is provided for converting a four-track slip form paver into an improved three-track slip form paver for applying a continuous slab of concrete onto a road surface and against a vertical abutment adjacent the road surface.

An asphalt paver for applying a mat of asphalt material as the paver is moved along a path includes a frame, a compacting screed having rotatable vibrator shaft, and an edge compactor attached to the outer end of the compacting screed. The edge compactor includes a pivoting nose piece or tamping bar having an outer end generally overlying an edge portion of the asphalt mat, a rotatable shaft connected to the vibrator shaft, and a rod eccentrically mounted to the rotatable shaft and secured to th...

An improved asphalt paver having a remixing conveyor system that is adapted to substantially or entirely eliminating segregation in hot mix asphalt material delivered to the asphalt paver. The remixing conveying system includes at least one pair of parallelly spaced, oppositely pitched, counter-rotating hydraulically driven feed augers having remixing blades that intermittently displace portions of the hot mix asphalt material generally transversely to the direction that the feed augers convey t...

A self propelled paving machine includes a pair of independently operated conveyors and a pair of independently operated augers spaced on opposite sides of the machine centerline. The augers can be separately raised and lowered to different elevations. The drive boxes for the conveyors and augers are positioned at the sides of the machine, to provide space between the conveyors and augers that is unobstructed, permitting the free fall of paving material from the conveyors along the centerline of...

An improved asphalt paver with a compaction compensating system includes a nominal reference, such as an elongate averaging ski, for determining the general profile of the underlying terrain on which a mat of asphalt material is being placed by the paver. The improved system also includes a compensating ski for determining localized irregularities of the subgrade and a control system for responsively altering the thickness of the mat being placed by the paver to compensate for differential compa...

A slip-form paver is provided which is capable of paving a lane of concrete or other material in much the same manner that asphalt is spread as a top paving surface for a roadway. Spreading and levelling means are not restricted to the space between the traction members of the tractor portion of the machine, but are arranged behind such members so that the slab may be wider than, or offset, with respect to the distance between such traction members. The mounting of the final paving tool is capab...

A suspension system for a dump truck which is to be connected to a paver using a truck hitch. In one example, a system for connecting a dump truck to a paver includes a liftable and steerable suspension of the truck, the suspension having an adapter with a laterally outwardly facing concave side. A truck hitch of the paver engages the concave side of the adapter to attach the truck hitch to the suspension. In another example, a method of connecting a dump truck to a paver includes the steps of: ...

The present invention is a tool for scribing a paver. The tool allows for the alignment and scribing of rectangular pavers to be placed in an arc pattern. The tool includes an alignment head having a left end and a right end. A scribe guide extends from said alignment head, said scribed guide including a scribing side. A first guide pin extends from said right end of said alignment head and a second guide pin extends from said left end of said alignment head.

A means for towing and feeding a rail-mounted slip form paver has a self-propelled tug unit, a draw bar structure adapted to connect the unit and the paver in spaced relation, a hopper on the tug for receiving fluid concrete and including archimedes screws for delivering the fluid concrete to one end of a conveyor carried by the draw bar structure, a discharge chute at the other end of the conveyor for delivering fluid concrete in advance of the paver and a separating member between the paver an...

An integrated paver comprising a self-propelled chassis having a paving apparatus, such as a screed, supported on its rear end and a lifting conveyor supported on its front end. The conveyor is capable of picking-up loose paving material laid in the windrow on the road surface. It is pivotally supported on a mounting which is in-turn pivotally supported on the chassis such that the conveyor can be adjusted in two dimensions relative to the chassis. Grade controls on the conveyor control hydrauli...