Road structure – process – or apparatus – Apparatus – Material distribution means
Patent
1995-05-26
1996-06-25
Britts, Ramon S.
Road structure, process, or apparatus
Apparatus
Material distribution means
404 8405, E01C 1912
Patent
active
055294340
ABSTRACT:
A paving material machine having a frame with an end-to-end tunnel for paving material capacity. The machine also includes an electro-hydraulic drive system using rotary transducers. In a configuration for laying down paving material, the machine has a front hopper for receiving paving material from trucks and a conveyor to transfer paving material rearward through the tunnel. A diverter plate and feed augers are mounted at the rear of the machine to regulate the paving material out of the rear of the tunnel. A lay down screed is located behind the feed augers. In order to improve turning characteristics in a system featuring a positive traction device, the drive system is connected to rotary transducers which measure the direction and degree of wheel turn. Using the input from the rotary transducers, the drive system allows a speed differential between the inside and outside wheels in a turn. In an alternate lay down machine embodiment, a windrow pickup assembly is substituted for the hopper and a pair of tunnel side forms are used in place of the conveyor. The frame having a tunnel and the drive system using rotary transducers may be utilized in a paving material transfer machine or a road widening machine.
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Britts Ramon S.
Lisehora James A.
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