An asphalt spreader mounted on its own ground supporting wheels including driven wheels which are power operated by means of a chain driven from a hydraulic motor operated by a pump driven by an engine mounted on the asphalt spreader. The asphalt spreader includes a heavy steel structure frame having a platform at the rear on which the operator stands and having a large movable asphalt bed separated from the operator's platform by a large vertical wall. The bed is selectively operable to be raised or lowered by means of hydraulic cylinders and the asphalt is distributed from the bed by means of an elongated opening at the back of the machine separated into two spaces each having a power driven helical conveyor mounted therein to distribute the asphalt through the exit opening. The operator platform is adjustable and is stabilized.
A material spreader for spreading a topping material over a wet concrete surface utilizes a pair of hoppers which are driven back and forth on a bridge support spanning the surface. A gasoline engine mounts above the hoppers and furnishes power for a reversibly controllable hydraulic hopper drive motor. The motor is part of a hydraulic system in which the hydraulic fluid is cooled by using both a hopper wall as well as the flowing material being spread as heat sinks.
A pull type asphalt paver for spreading asphalt onto a road surface is disclosed as having means to avoid dump truck damage to the paver during operation and transporting thereof, means to readily enlarge the width of an asphalt layer on a road surface, and means to facilitate the metering and control of asphalt discharged by the paver on a road surface.
An improved mounting arrangement for the auger and auger drive mechanism of a floating screed type asphalt paver. A drive box, pivotally mounted at the back of the paver, supports and drives the inboard ends of left side and right side augers. A cantilever beam, mounted on the drive box, extends laterally over both augers and provides outboard bearing support. Actuator means is provided for controllably pivoting the entire assembly about an axis located in front of the augers, enabling the augers to be lifted and lowered for loading/unloading operations, clearing obstructions, etc., and also enabling the auger to be adjusted vertically during paving.
A device for spreading asphalt and other road paving materials is disclosed. The spreader comprises a main body, two separately adjustable wings and various end components to adapt the spreader to different road surfaces, tasks or operator preferences. Structural rigidity and strength results from the use of a three point hitch and a combination of three horizontal, longitudinally position pipes in the main body and three like positioned pipes attached to the wings, said pipes moving coaxially within the main body pipes.
