Importance

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Abstract

An inclined roadbed is paved by vehicles which are connected by wires to uphill anchor vehicles. A paving vehicle on the inclined surface has a device for projecting a laser beam to a beam-receiving device on its respective anchor vehicle. The height of the wire connection point on the anchor vehicle is changed in response to signals from the beam-receiving device, so as to equalize the forces exerted on the inclined surface by the left and right sides of the paving vehicle. For paving surfaces such as automobile test tracks which have compound curvatures, a pavement laying apparatus has a curved surface formed by a plurality of interconnected screed plates which are each connected to a respective screw jack. A microcomputer stores data representing the desired shape of the pavement at different points along the travel path of the apparatus. Signals representing the travel distance of the apparatus are sent to the microcomputer, and the microcomputer sends output signals which control the jacks to produce a pavement surface which has the desired shape.

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First Claim