Abstract: Soil is captured into a bowl attached to a frame of a scraper machine by maneuvering the machine while a cutting bit attached to the bowl slices through the underlying soil. The bowl is supported on the frame, and the soil cutting is accomplished via a spade bit attached to the bowl at a cut opening. The spade bit has a cutting edge with a forward protrusion flanked by swept back segments. A top surface of the spade bit may be contoured with a central ridge flanked by a twist contour surface to urge soil towards opposite sides of the bowl.

Abstract: A pulverizing machine with a cutter assembly adapted to be towed when the machine is moving either forward or in reverse. The machine includes a frame, a plurality of wheels supporting the frame, a cutter assembly carried by the frame and a pair of elevation cylinders for raising and lowering the cutter assembly. The cutter assembly has a cutter housing and a cutter drum rotatably mounted within the cutter housing. The cutter housing is pivotally suspended from the frame by a pair of chain cases, one on each side. Each chain case contains a chain drive assembly connected to the cutter drum to drive the rotation of the cutter drum. Cutter teeth extend from the cutter drum to pulverize material as the cutter drum is lowered and rotated into the material. A pair of rear cylinders are mounted between the rear of the cutter housing and the frame. When the machine is operated in the forward direction, the chain cases tow the cutter assembly.

Abstract: An apparatus for pulverizing a surface such as a road bed, parking lot, an interstate shoulder or the like. The apparatus comprises a frame with a cutting means secured thereto. A bidirectional drive and control means is also provided to enable the apparatus to make multiple passes over a surface while in an operating condition without turning the apparatus around. A system for adding liquid to the surface being pulverized may also be included.

Abstract: A twisted shovel, for a chisel plow or similar implement, having a concave twisted surface. The concave surface maintains soil flow in the desired path as the shovel is moved forwardly through the soil. The soil displaced by the shovel is directed more effectively by the concave surface to one side of the shank to improve crop residue flow and incorporation, and the concave shape significantly improves the bending strength of the shovel over that of flat-twisted shovels of comparable width and thickness.

Abstract: An earthworking device such as a power scraper has a cutting edge assembly which may be mounted to give either a straight or a crenellated edge. The assembly consists of several identical long, narrow, rectangular members which have chamfered longitudinal marginal portions and are mounted alternately with the chamfers facing up and facing down, and the latter chamfers overlying the former. Threaded bolts impale holes near one end of the members which have their chamfers down so as to secure those members to the top surface of the scraper blade and frictionally clamp the other members to the blade.

Abstract: An earth-working tool has mounting means at one end for attachment of the tool to the frame of an agricultural implement, a tool blade down the forward edge of the tool and attachment means at the other end of the tool for securing a tool point. The mounting means is so arranged that the tool may be attached to the frame in such a manner that the tool blade will form a rearward angle, from the top end to the other end, in relation to a line normal to the direction of forward movement which the tool will take during use, with the result that soil tilled by the tool point will be prevented from rising to the surface by the action of the rearwardly directed tool blade. Ideally the tool may be mounted so that the tool blade will be forwardly directed, either by reversing the tool or by providing alternative mounting holes for mounting the tool to an agricultural implement.

Abstract: An end wear bit for earthmoving equipment blades includes a symmetrically constructed plate having a plurality of divergent rows of apertures formed therein.

Abstract: This invention relates to soil cultivating implements or rotary harrows, such implements comprising at least one power-driven soil working member or rotor that includes a tine support secured to a shaft affording the axis of rotation of that member or rotor, the latter also including at least one tine having integral active soil working and fastening portions. The fastening portion of the tine is connected to a holder of said support and can be readily replaced by releasing fastening means that permits the holder and fastening portion to be separated.

Abstract: A reversible bit for selective mounting to an earth-moving blade, such as a bulldozer blade, having opposite corner portions. The bit includes transversely extending cutting edge portions and a mounting portion adapted to be selectively mounted to opposite corners of the blade with one or the other of the cutting edge portions suitably disposed in cutting position whereby the bit provides substantially twice the normal life of the conventional blade bit.