Abstract: A composite working tool, for example a ground engaging tool of an agricultural implement, features a body composed of a first material and an insert composed of a distinct second material of greater hardness than the first material to define wear resistant surfaces of the tool. The tool body has an opening recessed thereinto from an exposed exterior surface fully surrounding the opening on all sides thereof, and the insert is attached to the body in a position at least partially received within the opening, for example by brazing. The increases the wear life of the body and provides greater mounting strength over surface-mounted wear inserts of the prior art.

Abstract: A highly durable aeration tine device attached to a soil aerator has a tubular tine member extending cylindrically and a hard metal tip made of a hard metal material and typically made in a frustum shape of a cone, which is in an area contact with the tubular tine member between the surfaces of the tubular tine member and the hard metal tip. Each surface of the tubular tine member and the hard metal tip is extending in a plane perpendicular to the axial direction and can be fabricated easily, and the drive force provided from the soil aerator can be transmitted without loss.

Abstract: An abrasion resistant metal earth working surface having a plurality of spaced hollow open ended cup-shaped abrasion resistant studs welded to the surface which collect particulate material in the hollow open ends of the weld studs, wherein the particulate material forms an abrasion resistant barrier limiting abrasion of the earth working surface. The size and shape of the cup-shaped weld studs and the spacing between the array of studs is selected to provide optimum collection of particulate material which reduces wear to extend the efficient operation and life of the earth working surface.

Abstract: A tillage sweep assembly includes a base sweep with a central fore-and-aft slot. A support strap or stem includes a corresponding fore-and-aft extending protrusion which mates with the slot. A filet weld connects the top of the base sweep to the support strap with the weld extending around the strap. A plug weld is added to the underside of the sweep in an offset or lifted portion of the bottom of the base sweep above the cutting plane of the sweep. The extra plug weld adds strength to the existing filet weld joint and significantly reduces the chance of inadvertent base sweep loss. The location of the plug weld above the cutting plane protects the plug weld from wear. The strap or step of the sweep assembly is slotted for ease of pitch adjustment, and the base sweep has wings with substantial fore-and-aft extending end portions to retain working width over the life of the sweep.

Abstract: A trenching plow blade having replaceable wear components is disclosed. A preferably octagonal rod with regularly spaced transverse holes drilled therethrough is welded to the leading edge of the blade. Replaceable leading edge cover pieces each have a channel therein with a shape complementary to the front face of the rod, and transverse holes adapted to align with the transverse holes in the rod. Pins are positioned through the holes to hold the covers in place. Preferably, straight and curved sections of the covers are provided as required. For the toe of the blade, a toe cover is preferably provided. The rod and covers may be supplied as a kit, which is readily installed since the only operation required is welding.

Abstract: Sweep tillage tools (10, 10') according to the preferred teachings of the present invention are disclosed including generally flat, horizontal sweep blades (18) generally located behind the implement shank (12) and above the point (28) of the spike (16, 16'). Specifically, the front corners of the sweep blades (18) between their front cutting edges (36) and inside edges (40) are integrally connected to the side edges (34) of a central portion (32, 32'). Gussets (20) are provided having a first side (48) integrally connected generally perpendicular to the inside edges (40) of the sweep blades (18) and having a second side (50) integrally connected to the side edges (34) of the central portion (32, 32') to provide catilever mounting of the sweep blades (18) and to provide support for soil passing over the spike (16, 16') and the sweep blades (18) at their intersection.

Abstract: A cemented carbide tip for a cutter bit is rotationally symmetric about its longitudinal axis and has a socket in its rear end for brazing to a steel protrusion on a steel tool shank. The tip socket and an outer rearmost facing surface on the tip rear end have respective pluralities of first and second bumps thereon for spacing, centering and aligning the tip on the bit body to facilitate formation of a braze joint of a desired given cross-sectional thickness profile between the tip and bit body.

Abstract: A cemented carbide tip is provided with a socket for mounting onto the steel shank of a cutter bit. The socket has an annular convex surface therein extending from the earth engaging portion of the tip radially inwardly and forwardly. This convex surface is brazed to the forward end of a steel shank to form a cutter bit.

Abstract: Ground engaging bits having hardned tips are beneficial when working extremely hard ground and/or planing asphalt or concreate. In these applications, the ground engaging bits rotate in their holders while performing the cutting action. Since the material needed to make a hardened tip is normally very expensive, it is beneficial to best utilize all, or at least most of, the hardened tip and to provide a hardened top that remains sharp during its effective life. The present ground engaging bit has a body with a convex non-linear forward end surface and a hardened tip with a corresponding concave non-linear rearward end surface to mate with the forward end surface of the body. The hardened tip has a continuous concave surface of revolution defined on its intermediate portion with a radius thereof being less than the diameter of its rearward flange portion.

Abstract: A sweep-spike combination tillage tool (10) according to the preferred teachings of the present invention is disclosed including generally flat, horizontal sweep blades (18) located behind a spike (16) and above the point (28) of the spike (16). Specifically, the front corners of the sweep blades (18) between their front cutting edges (36) and inside edges (40) are integrally connected to the side edges (34) of the spike (16). Gussets (20) are provided having a first side (48) integrally connected generally perpendicular to the inside edges (40) of the sweep blades (18) and having a second side (50) integrally connected generally tangentially to the side edges (34) of the spike (16) to provide cantilever mounting of the sweep blades (18) and to provide support for soil passing over the spike (16) and the sweep blades (18) at their interconnection.

Abstract: A main frame construction for a motor grader wherein the main frame comprises a rear unit, a center unit, and a front unit. Both rear and center units are box-like structures in cross sections with constant transverse dimensions, with constant metal specification, with continuous welds at all four corners running longitudinally of each unit, with but one weld junction at a location spaced rearwardly of the knee area supporting a saddle structure for the blade, and without the provision of extra structural members and arrangements at the knee area. Minimum section changes within the box structures of the rear and center units, the elimination of weld starts and stops provides a strong smooth section of main frame alleviating locally high stresses at the knee area for mounting the saddle. The very simplicity of the rear and center unit box-structure as described and depicted is the heart of the improved main frame.

Abstract: An agricultural earth engaging implement formed from two metal plate sections. One piece forms a narrow profile shaft and the other forms the earth engaging portion. The shaft is formed to provide a tapered cavity for receiving a tine and the implement is held on to the tine by frictional forces.

Abstract: An agricultural sweep which includes a pair of divergent wings having sharpened, earth-cutting edges. The wings define an angle of between 60.degree. and 100.degree., and a hard metal insert is used to provide an overlying cap at the forward end of the two wings where the wings converge and extend toward a leading point. The pointed forward ends of the two wings are cut away, and a point carried by the insert is inserted in the space which remains after the pointed forward ends of the two wings have been removed. The insert tapers to a ridge or crest which lies in a plane which bisects the sweep, so that the wings lie on opposite sides of the bisecting plane.

Abstract: A digging bucket lip is provided with one or more shrouds, each shroud having a blunt forward portion and a rearward portion divided into two spaced-apart legs. There are apertures through the legs, preferably in alignment. Rings are slidably disposed in the apertures and are welded on their inner margins to the lip disposed between the legs.

Abstract: Tamping tools for mounting in a ballast tamping apparatus such as the rail-mounted Canron, Plasser and Jackson ballast tamping machines designed for tamping ballast around railroad cross ties, which tamping tools each include a shaft adapted for mounting on a reciprocating mechanism in a respective ballast tamping machine, a shaped shank extending from the shaft, a weld ring or nut seated on the shank and welded to the shaft and a tool foot having a receptacle internally configured to receive the shaped shank, with the tool foot welded to the weld ring or nut for easy replacement. A blade is provided at the extending end of the tool foot in offset relationship for contacting and tamping the ballast and in a first embodiment the blade is formed integrally with the foot, while in a second embodiment the blade is bolted to the tool foot.

Abstract: A tillage tool appendage which includes a base plate or shank portion, adapted to be connected to the frame of the tillage tool, and a plow point bar-overcap welded to the base plate or shank portion. The plow point bar-overcap includes a leading edge lip which overhangs the base plate or shank portion so as to extend past the lower or bottom surface of the base plate or shank portion, and an overcap which lies atop the base plate or shank portion. Weld metal is deposited between the leading edge lip and the base plate or shank portion in a shielded location and is utilized for joining the plow point bar-overcap to the base plate or shank portion.

Abstract: A tillage tool appendage which includes a base plate or shank portion, adapted to be connected to the frame of the tillage tool, and a plow point bar-overcap welded to the base plate or shank portion. The plow point bar-overcap includes a leading edge lip which overhangs the base plate or shank portion so as to extend past the lower or bottom surface of the base plate or shank portion, and an overcap which lies atop the base plate or shank portion. Weld metal is deposited between the leading edge lip and the base plate or shank portion in a shielded location and is utilized for joining the plow point bar-overcap to the base plate or shank portion.

Abstract: An agricultural share formed in two parts wherein the parts are mirror images of one another and each part comprises a major face having a point, the face being defined by a first, inner edge extending rearwardly from the point and a second, outer edge extending rearwardly from the point and diverging at an acute angle away from the first edge, an upstanding flange disposed at an angle greater than 90.degree. to the major face, extending along at least part of the first edge and extending forwardly at least as far as the point, the parts being joined together along their inner edges by mating of the flanges to form a raised ridge.

Abstract: The present invention relates to an agricultural share formed of metal and having a front and rear and two sides converging together to form a point, wherein there is bonded to the front of the share along at least part of each of its sides a lateral protective metal length. Preferably there is also provided a center protective metal length bonded to the front of the share substantially equidistant from the sides of the share. Agricultural shares are subjected to extensive wear in use. The metal lengths, which are preferably formed of harder metal than the metal of the share itself, increase the operating life of the agricultural share of the present invention.

Abstract: A plow chisel having an integrated chisel point and including an elongated, arcuate shank portion formed as a curved, flat metal plate having a top surface, bottom surface and two opposed side edges. At one end, the shank portion is pointed due to convergence of the side edges. A chisel cap of pointed configuration includes a base relieved to receive the pointed end of the shank portion in a recess of complementary shape. The cap is of hard metal construction and is secured to the shank portion by welding.

Abstract: A loader bucket comprises a bottom wall having an elongated general purpose edge disposed forwardly thereon. A reversible cutting edge is bolted onto an underside of the general purpose edge, along with a plurality of laterally spaced adapters each having a hardened earthworking tip detachably mounted thereon. In a first embodiment of this invention, a plurality of laterally spaced bores are formed to a limited depth on the upper side of the cutting edge and the lower end of a bolt stud is welded within each bore. The stud extends upwardly through aligned holes formed through the cutting edge and the adapter to have a nut threaded on the upper end thereof. In a second embodiment of this invention, a continuous slot is formed along the cutting edge to receive the studs therein. Alternatively, the bores or slot may be formed on an underside of the general purpose edge.

Abstract: An improved support for mounting the grader blade assembly of a motor grader on depending support arms of the motor grader circle. A bearing housing structure which is several times wider than the height of the blade assembly consists of a transverse hollow structural member with integral upright bearing housings at its ends which are substantially wider than and pivoted on the arms so the structure may be tilted. Forwardly open lower jaws in the bearing housings have planar top and rear surfaces and front lower webs which are generally complementary to surfaces of a lower support rail on the blade assembly; and forwardly open upper jaws provide upper and lower front webs and a planar rear surface which are generally complementary to surfaces of an upper support rail on the blade assembly. Working forces are transmitted from the rails through the jaws and bearing housings to the support arms; and vertical forces are transmitted almost exclusively through the lower jaw.

Abstract: A tillage apparatus for sod seeding usage includes a plurality of tillage unit assemblies having power driven blades receiving power from a tractor which tows the apparatus. An improved tillage blade is disclosed.

Abstract: A bulldozer blade comprises a push plate having a cutting edge mounted on a lower end thereof and a plurality of structural members secured on the back of the push plate and welded together to increase the structural integrity thereof. Each adjacent pair of such members are joined together at a weldment comprising a groove and contiguous dam formed on a surface of one member to have a corner of the other member disposed adjacent thereto and common weld means at least substantially filling the groove and securing the members together. The groove and dam are preformed on an arcuate portion of the first member during a cold forming operation.