Abstract: A rock removal skid steer attachment includes a connection portion that has a rear face, a lower edge, and an upper edge. The connection portion is configured for engaging a skid steer. A pair of side plates extends from the connection portion. The side plates are spaced from each other. The distal section of the side plates relative to the connection portion includes a barbed portion. Each of the side plates has a top edge and a lower edge. The top edges taper toward an associated one of the lower edges as the side plates extend away from the connection portion and towards the barbed portions. The side plates are configured to be extended into a ground surface to extract boulders from the ground surface with the barbs.

Abstract: A rock removal skid steer attachment includes a connection portion that has a rear face, a lower edge, and an upper edge. The connection portion is configured for engaging a skid steer. A pair of side plates extends from the connection portion. The side plates are spaced from each other. The distal section of the side plates relative to the connection portion includes a barbed portion. Each of the side plates has a top edge and a lower edge. The top edges taper toward an associated one of the lower edges as the side plates extend away from the connection portion and towards the barbed portions. The side plates are configured to be extended into a ground surface to extract boulders from the ground surface with the barbs.

Abstract: A tool, for mounting on a powering vehicle for transport, vertical motion and pivotal motion about a horizontal axis, provides a frame having connecting structure to interconnect with the powering vehicle. The frame carries extracting structure having plural laterally spaced extracting tines extending forwardly from the lower frame portion. At least one extracting tine has at least one depending vertical fin to increase tine strength and direct tine motion in a horizontal plane upon insertion through the earth; at least one extracting tine has at least one laterally extending horizontal fin to increase tine strength and direct tine motion in a vertical plane upon insertion through the earth; and at least one extracting tine has at least one soil retaining plate to aid support of material thereabove. The fins and plates tend to separate earth above and below the course of their insertion.

Abstract: A rock picker having a frame supported by rear support wheels and a tongue that is adapted to be attached to a tractor draw bar. A basket assembly having gathering tines and separation bars is carried by the frame. The gathering tines gather rocks and hold the rocks while allowing soil to pass between adjacent tines. The basket assembly is pivotally attached to short links. The short links are pivotally attached to the frame. Hydraulic cylinders are attached to the frame and to the basket assembly. When the basket assembly is filled with rocks, the hydraulic cylinders are extended. Initially, the short links pivot forward, lowering and extending the forward ends of the gathering tines and placing a downward force on the gathering tines. Continuing extension of the hydraulic cylinder raises the gathering tines and causes rocks to slide down the separation bars and into a rock hopper. Dirt passes between the separation bars and to the ground.

Abstract: A mine treatment method for treating a mine placed in the ground includes a step of freezing the soil around the mine; and a step of digging up the mine together with the frozen soil. The method may further include a step of making water penetrate into the soil around the mine before the step of freezing the soil. In the method, the soil around the mine is frozen by liquefied nitrogen. After the soil around the mine is frozen, the mine is dug up together with the frozen soil from the ground.

Abstract: The invention relates to a bucket crusher to be mounted in place of the bucket of an excavator or a bucket loader. Horizontal crushing shafts (12) provided with crushing tools are superimposed at a small distance from each other and adapted to be rotated in the same rotating direction. A pivoting axle (4) for a pivotably journalled compression and feeding plate (1) is located in the top section of the bucket. The plate (1) can be turned for pressing the material to be crushed against the crushing shafts, whose rotating direction is selected in such a manner that the crushing tools within said bucket travel towards said pivoting axle (4).

Abstract: A rock rake fiber gathering into a row or a gathering area objectional rocks and debris from the ground where a first roller engages such rocks and debris and a deflector forms a gap therebetween through which only un-objectionable rocks and debris may pass. The adjustable rock rake having an actuator for adjusting the angle of the roller and deflector. The adjustable rock rake having guards about the end of the roller such that a gathering area is formed for the accumulation of rocks and debris. The guards being removable and storable upon the frame of the adjustable rock rake.

Abstract: A tractor-mounted tree stump puller having articulating components that create a mechanical advantage to remove buried objects or the like from the ground in response to forward movement of the tractor. The implement comprises at least two components pivotally joined to form an articulating structure that shifts from a retracted position to an extended position upon forward movement of the tractor. An articulating structure so formed has a first end pivotally coupled to the tractor, and a second end rigidly attached to a forked structure. Just prior to the removal process, the forked structure is disposed to engage a buried object. With the forked structure engaging a buried object, the tractor moves in a forward direction causing the articulating components to shift from a retracted position to an extended position.