Abstract: An earthen structure for holding back a body of water has a sloped surface which is paved with an overlapping arrangement of strips constructed of castable material. Each strip is formed by conveying castable material from a mobile receiving hopper that is propelled adjacent to the base of the earthen structure. A bridge conveyor projects laterally from the receiving hopper over the slope. The bridge conveyor deposits the castable material onto the slope forwardly of a spreader device that is advanced longitudinally relative to the slope by a prime mover. A scraper blade of the spreader device is positioned at a preselected elevation by a forwardly projecting sidewall which is connected to the blade and slidable on a previously formed strip. The sidewall maintains the castable material in front of the blade, as the advancing blade spreads the material in a longitudinal strip of a preselected thickness and having a lateral edge extending a preselected lateral dimension outwardly from the sloped surface.

Abstract: An earthen structure for holding back a body of water has a sloped surface which is paved with an overlapping arrangement of strips constructed of castable material. Each strip is formed by conveying castable material from a mobile receiving hopper that is propelled adjacent to the base of the earthen structure. A bridge conveyor projects laterally from the receiving hopper over the slope. The bridge conveyor deposits the castable material onto the slope forwardly of a spreader device that is advanced longitudinally relative to the slope by a prime mover. A scraper blade of the spreader device is positioned at a preselected elevation by a forwardly projecting sidewall which is connected to the blade and slidable on a previously formed strip. The sidewall maintains the castable material in front of the blade, as the advancing blade spreads the material in a longitudinal strip of a preselected thickness and having a lateral edge extending a preselected lateral dimension outwardly from the sloped surface.

Abstract: An earthen structure for holding back a body of water has a sloped surface which is paved with an overlapping arrangement of strips constructed of castable material. Each strip is formed by conveying castable material from a mobile receiving hopper that is propelled adjacent to the base of the earthen structure. A bridge conveyor projects laterally from the receiving hopper over the slope. The bridge conveyor deposits the castable material onto the slope forwardly of a spreader device that is advanced longitudinally relative to the slope by a prime mover. A scraper blade of the spreader device is positioned at a preselected elevation by a forwardly projecting sidewall which is connected to the blade and slidable on a previously formed strip. The sidewall maintains the castable material in front of the blade, as the advancing blade spreads the material in a longitudinal strip of a preselected thickness and having a lateral edge extending a preselected lateral dimension outwardly from the sloped surface.

Abstract: A scraper bowl with a bottom wall having a downwardly deflected scraper blade is connected at its rearward end portion to a conveyor support frame having an upper inclined platform that extends rearwardly from the scraper bowl and terminates in a horizontal cantilivered platform. The conveyor support frame is connected to ground traction devices by a leveling mechanism that maintains vertical positioning of the support frame as the scraper bowl is forwardly propelled by a prime mover. An inclined endless belt conveyor is secured to the inclined platform and includes an end portion positioned within the scraper bowl for receiving dislodged material. Oscillating plate members within the scraper bowl assist in transferring the material onto the inclined conveyor. The material is transported rearwardly of the scraper bowl by the inclined conveyor onto an endless belt conveyor that is supported by the horizontal platform and is positioned intermediately to and transversely of the inclined conveyor.

Abstract: A strip paving machine for forming step-like breakers on the inclined surfaces of a diversion island for a power plant cooling pond includes a mobile receiving hopper that is propelled by a bulldozer over the floor of the cooling pond. A forwardly advancing dump truck remains in material receiving relationship with the front end portion of the receiving hopper and deposits castable material onto a conveyor that is transversely positioned in the receiving hopper. The material is transported laterally out of the receiving hopper onto a bridge conveyor that is pivotally connected at one end to the receiving hopper. The upper end portion of the bridge conveyor is slidably supported on the inclined surface of the diversion island and is pivotally connected to a mobile feed hopper. The feed hopper is forwardly propelled on the diversion island by a prime mover at the rate of speed of the receiving hopper.