Abstract: A rock windrower has a pair of side blade members that are elongated at fore and aft directions and are positioned to be widely spaced at one end and tapering to a narrow spacing at an opposite end. Movement along the ground with the side blade members engaging or adjacent to the ground surface causes rocks that are engaged to be moved along the tapered V-shaped frame to form a windrow. The side members include cutting blades along the lower edges. A plurality of gauge wheels on the side blade members engage the ground and support the cutting blades at a desired orientation and level relative to the ground surface.

Abstract: A screening machine has a rotating screening drum for screening dirt or other material to a desired size through the screen openings, and is made so that it reduces clogging of the screen, even when rocks, dirt clods, and moist dirt is being screened. The rotating drum has interior brushes and a beater bar for keeping the material moving on the interior of the drum. A holding bin and feeding conveyor is used at the input end of the machine and is positioned to empty into an input pulverizer or shredder, that has a powered drum that will break the dirt clods up. The holding bin has a cover grate to remove excessively large rocks and the like. The output from the pulverizing roller also drops material onto a grate through which the material passes before reaching the screening drum. These grates are called "grizzly bars" and help in the classification process. The screening drum can be converted to a mixer drum by lining the screen wall with sheet metal and removing the normally used interior brushes.

Abstract: A rock picker has a plurality of high capacity conveyors, one of which is used for storing rocks during the picking operation. The conveyors quickly unload the stored rocks into a truck or at some other desired location. The storage conveyor is arranged so that it does not take up any substantial amount of space greater than the rock picker frame, but yet is sufficiently large in capacity so that it can store a large number of rocks as they are picked. Loading conveyors are sequentially placed so that first and second normally continuously operating conveyors load into the third storage conveyor in sequence. A storage hopper is provided at the input end of the storage conveyor, and the conveyor is intermittently operated to carry the rocks from the hopper in a layer along the length of the storage conveyor. When the storage conveyor is loaded with rocks, the storage conveyor is run to discharge the rocks off one end.

Abstract: A rock windrower which has a main roller that is moved along the ground and is rotationally driven under power. The roller is at an oblique angle with respect to the direction of travel, so that the rocks that are dislodged are moved axially along the roller and laterally to the direction of movement until they are discharged at the trailing end of the roll to be left in a windrow. The present device further includes an auxiliary roller mounted above the main roller to prevent rocks from spilling over the main roller, thus making it possible to form larger windrows, while permitting dirt clods and some foreign material to pass between the rollers. The auxiliary or second roller is mounted on arms that are pivotally mounted relative to the mounting for the main roller to permit the second roller to move if necessary.

Abstract: An apparatus for cleaning beaches including a conveyor that will pick up foreign objects from a beach, elevate such objects together with accumulated sand, a tumbler which receives the material and rotates to separate the material from sand, a brush to unclog openings in the tumbler, and a conveyor that will move the large objects to a desired storage location.

Abstract: A screening machine has a rotating screening drum for screening dirt or other material to a desired size through the screen openings, and is made so that it reduces clogging of the screen, even when rocks, dirt clods, and moist dirt is being screened. The rotating drum has interior brushes and a beater bar for keeping the material moving on the interior of the drum. A holding bin and feeding conveyor is used at the input end of the machine and is positioned to empty into an input pulverizer or shredder, that has a powered drum that will break the dirt clods up. The holding bin has a cover grate to remove excessively large rocks and the like. The output from the pulverizing roller also drops material onto a grate through which the material passes before reaching the screening drum. These grates are called "grizzly bars" and help in the classification process. The screening drum can be converted to a mixer drum by lining the screen wall with sheet metal and removing the normally used interior brushes.