Abstract: The present invention provides for carbide edge snowplow and grader blades that are durable and fracture resistant. The carbide along the blade edge and blade bottom which contacts the surface being treated is designed to limit the degree of fracture of the carbide. Carbide inserts along the edge and/or bottom are separated from each other by a steel alloy spacer/shim along the width of the blade. The spacer/shim reduces the potential for impact damage cracks that form in a carbide insert from propagating into adjacent inserts along the width of the blade. In one embodiment, the improved blade edge comprises an edge body having a lower edge with a recess and separate slot in the bottom surface of the edge. Within the blade recess and blade slot are positioned carbide block/bar inserts separated by spacer means made from a ductile material.

Abstract: A base edge protection system is provided for use with a base edge having at least one securing structure attached therewith. The base edge protection system comprises a base edge protector having a shroud portion and a tail portion, attached to said shroud portion, which is structured and arranged to extend through a securing structure opening attached to the base edge. A retaining device is adapted for attachment to the tail portion and retains the base edge protector on the base edge by contact with the securing structure.

Abstract: An end protector for a working element of a road grading machine or the like. The working element includes a body portion having a plurality of holes therein for holding picks that work a road surface. The end protector is held in place through the use of a vacant pick hole of the working element by a fastening element that extends through the hole.

Abstract: A plow moldboard cutting edge includes a cutting edge blade having a front (leading) face and a rear (trailing) face, with one or more receiving apertures defined therebetween. An elastic bushing is then provided in each of the receiving apertures of the cutting edge blade, with each bushing having a through hole defined therein. The cutting edge blade is then fastened to the lower edge of a plow moldboard by extending fasteners through cutting edge mounting holes defined in the plow moldboard adjacent its lower edge, and then into the through holes of the bushings. The fasteners secure the bushings to the plow moldboard, and thereby mount the cutting edge blade (which is situated about the elastic bushings) to the plow moldboard as well, with the elastic bushings elastically spacing the cutting edge blade from the fasteners.

Abstract: A lip assembly is disclosed. The lip assembly comprises a lip having an upper surface, a lower surface, a front portion, and a rear portion. A plurality of holes is disposed between the front portion and the rear portion. The lip also includes support members. Each support member is disposed adjacent to a hole within the plurality of holes and is positioned to inhibit movement of a tooth assembly coupled to the hole. A plurality of tooth assemblies extend away from the lip and are respectively coupled to the lip via the plurality of holes. The lip assembly may be used with an excavation bucket body.

Abstract: A base edge protection system is provided for use with a base edge having at least one securing structure attached therewith. The base edge protection system comprises a base edge protector having a shroud portion and a tail portion, attached to said shroud portion, which is structured and arranged to extend through a securing structure opening attached to the base edge. A retaining device is adapted for attachment to the tail portion and retains the base edge protector on the base edge by contact with the securing structure.

Abstract: The present invention provides for carbide edge snowplow and grader blades that are durable and fracture resistant. The carbide along the blade edge and blade bottom which contacts the surface being treated is designed to limit the degree of fracture of the carbide. Carbide inserts along the edge and/or bottom are separated from each other by a steel alloy spacer/shim along the width of the blade. The spacer/shim reduces the potential for impact damage cracks that form in a carbide insert from propagating into adjacent inserts along the width of the blade. In one embodiment, the improved blade edge comprises an edge body having a lower edge with a recess and separate slot in the bottom surface of the edge. Within the blade recess and blade slot are positioned carbide block/bar inserts separated by spacer means made from a ductile material.

Abstract: A bucket assembly is provided with a kit that includes a base plate for permanent connection to a lower part of the bucket, and sacrificial, impermanent replaceable wear edge segments for the forward lip and corner leading edges of an excavator or loader bucket. These segments form a set of “bolt on” cast wear members and wing wear segments. The base plate and wear plates are drilled and machined to accommodate the precision fitting bolting on of the replaceable lips and cast wing segments. The cast lip segments are of both left and right hand configurations and come in a variety of widths that, in combination, may tend to fit a large number of different commercially available bucket sizes. The lip top and bottom faces are shaped in a profile that may tend to result in relatively uniform wear and a reduction in friction when digging into various materials.

Abstract: A cutting edge for earth moving equipment, the cutting edge being movably supported so as to be independently movable to change a position of the cutting edge.

Abstract: A protection assembly for protecting the base edge and an attached cutting edge of a bucket or other implement of a work machine. The protection assembly is readily attachable and detachable to buckets having both new and worn base and cutting edges when the use of teeth is required for excavating, especially in hard packed virgin soil. The protection assembly includes a digging plate and a cover plate that form an elongated edge recess for receiving the base and cutting edges of the bucket. Positioning devices are provided on the bucket and the protection assembly to consistently position the protection system at the same location on the bucket regardless of the amount of wear on the base and cutting edges. The positioning devices prevent movement of the protection system relative to the bucket when the bucket is used for excavating.

Abstract: A power shovel including a frame, a boom mounted on the frame, a crowd drive mechanism mounted on the boom, and a dipper handle supported by the crowd mechanism. A dipper is connected to the handle for movement therewith, the dipper defining material receiving and material discharging openings with substantially identical areas. The dipper includes a generally planar back wall, a generally planar front wall, the front wall being opposite and substantially parallel to the back wall, generally trapezoidal and substantially parallel side walls connecting the back wall and the front wall, and a lip arranged along an upper edge of the front wall. A lip angle of the dipper is between three and five degrees, and a tooth angle is between 46 and 50 degrees.

Abstract: A bucket assembly is disclosed. The bucket assembly includes a bucket having a base edge. The bucket assembly also includes a base edge protection assembly having (i) a digging plate having a forward edge with a pair of notches defined therein so that a tooth is formed from a portion of the digging plate that is interposed between the notches and (ii) a cover plate secured to the digging plate so that an edge slot is defined between the digging plate and the cover plate. The base edge protection assembly is secured to the bucket such that the base edge of the bucket is positioned within the edge slot of the base edge protection assembly.

Abstract: A protection assembly for protecting the base edge and an attached cutting edge of a bucket or other implement of a work machine. The protection assembly is readily attachable and detachable to buckets having both new and worn base and cutting edges when the use of teeth is required for excavating, especially in hard packed virgin soil. The protection assembly includes a digging plate and a cover plate that form an elongated edge recess for receiving the base and cutting edges of the bucket. Positioning devices are provided on the bucket and the protection assembly to consistently position the protection system at the same location on the bucket regardless of the amount of wear on the base and cutting edges. The positioning devices prevent movement of the protection system relative to the bucket when the bucket is used for excavating.

Abstract: An earth working tool assembly of the type including a tool shank terminating in a foot and an earth working tool or point which has a socket for engagement by the shank foot. A bridging member extends between the shank foot and point, the bridging member having a tongue at one end which is received in a channel on the underside of the shank foot and a channel at the other end which receives a rib on the underside of the point. The bridging member transfers a proportion of side loading on the tool point to the tool shank at a position rearwardly from the leading end of the foot of the tool shank so as that the shank has increased resistance to breakage or bending.

Abstract: An excavating implement which includes a blade defining a top surface, an opposed bottom surface, a rear edge, a front edge, and opposed end surfaces. Primary cutting edges are spaced apart along the front edge, and secondary cutting edges positioned between the primary cutting edges. The secondary cutting edges are recessed relative to the primary cutting edges. The secondary and primary cutting edges intersect with the bottom surface. The blade also defines primary and secondary beveled surfaces forming acute angles with the bottom surface, and which extend angularly toward the rear edge from the respective primary and secondary cutting edges to intersect with the top surface.

Abstract: A blade attachment is adapted to be mounted to an excavator bucket assembly, the attachment including an elongated blade having a width substantially greater than the width of said bucket. The blade is provided with a pair of mounting brackets affixed to its rear with at least two mounting holes being provided through each mounting bracket. The mounting brackets are spaced apart a distance sufficient for mounting on the opposite side walls of the bucket. The brackets may be adjustably affixed to the rear of the blade to accommodate buckets of differing widths.

Abstract: A bucket assembly is disclosed. The bucket assembly includes a bucket having a base edge. The bucket assembly also includes a base edge protection assembly having (i) a digging plate having a forward edge with a pair of notches defined therein so that a tooth is formed from a portion of the digging plate that is interposed between the notches and (ii) a cover plate secured to the digging plate so that an edge slot is defined between the digging plate and the cover plate. The base edge protection assembly is secured to the bucket such that the base edge of the bucket is positioned within the edge slot of the base edge protection assembly.

Abstract: An excavation bucket assembly for an excavation apparatus such as a front-end loader includes a plurality of shrouds and tooth assemblies mounted along a lip of the bucket body. The shrouds are connected via reusable connection pins that are biased within aligned connection-holes with a plunger assembly mounted within the connection pin. The connection-holes are defined by two overlapping ovals, with the proximal oval having a larger radius as compared to the distal oval. Additionally, an improved attachment pin is utilized to connect a tooth portion to a tooth body portion of the tooth assemblies that provides for a secure and reliable attachment and easy exchange of worn tooth portions.

Abstract: A system for increasing the life of replaceable or sacrificial machine parts by providing an attachment device with controlled clearances results in substantial increases in the life of the sacrificial machine part under conditions of repeated shock loading.

Abstract: A wear runner assembly is attached to a surface of an excavating bucket and serves to protect a portion of the surface from abrasion wear during use of the bucket. The assembly includes a base member, a wear runner member, a pair of bolts and a pair of conical locking nuts. The base member is welded to the surface and has a pair of undercut slots that captively retain the head portions of the bolts, with the bolt bodies being transverse to the surface and projecting outwardly beyond the outer side of the base member. The wear runner member is mounted on the base member by moving the wear runner member toward the base member in a direction transverse to the surface in a manner causing the outwardly projecting bolt body portions to enter and be recessed within a pair of openings formed through the wear member, and also causing projections on the base member to be complementarily received within recesses formed in the wear runner member.

Abstract: An improved U-Blade implement, in one preferred embodiment, having fixed trailing and leading earth-piercing points on its U-shaped blade, integrated with support arms and a back plate. The back plate is generally planar, with a rear side of the back plate configured for attachment to a motorized vehicle, such as a skid steer.

Abstract: An insert cooperates with the channel in a material moving board. The insert is adapted to reach at least 3/4 of the way from the front edge to the rear edge of the board. The insert is preferably brazed to the channel and is made primarily of tungsten carbide and a cobalt binder.

Abstract: A bucket arrangement for an earthworking machine is provided with a cutting edge plate which is bowed outwardly and has a serrated leading edge such that a center tooth assembly is disposed in a plane of engagement with the soil ahead of and below the plane of engagement of a pair of side tooth assemblies. Thus, the center tooth makes penetrating engagement with the soil prior to the side teeth, providing the bucket arrangement with greater penetrating ability. The ability of the bucket to cut or slice through the soil is also enhanced by the serrated portions of the cutting edge plate.

Abstract: Replaceable wear members used in the past have usually includes shortcomings which have caused the product to be less than desirable. The present system for attaching a wear member to a parent member provides many advantages over the past configurations. For example, the unique configuration of the mounting base and wear member include cooperating slide and place engagement elements for mounting purposes. Also, a unique low profile retainer is used to retain the wear member, which allows for more use of the wear member before replacement is required, thus resulting is less throw-away material.

Abstract: An earth working tooth having a proximal end for attachment to an earth working machine and a distal end defining a forward cutting edge for penetrating the ground. The tooth has top and bottom surfaces having similarly curved configurations diverging angularly away from each other and extending longitudinally between the forward cutting edge and the proximal end of the tooth. The tooth further comprises parallel and generally vertical sidewalls extending between the top and bottom surfaces of the tooth. The top surface of the tooth is further provided with a depressed and changing configuration that inhibits the forward cutting edge from blunting as the tooth wears resulting from harsh work environments in which the tooth finds utility.

Abstract: The device is distinctive in that tooth (D) and matching adapter (A) are both designed with matching shapes to allow, after assembly, the formation and definition of one or more spaces (V) of variable shape, as appropriate, the adapter and tooth being made with one or more openings allowing the filling and application of a special-purpose material (M) in the above-mentioned space(s), said special-purpose material fulfilling the functions of locking the tooth relative to the adapter by absolute contact between the tooth and adapter by forming a contact cushion that ensures distribution of the stresses and strains in all the areas filled by the material.

Abstract: A ploughshare (10) having cutting edges (2) and a securing device (4,5) for attachment to a plough (not shown). The ploughshare (10) has a number of individual metallic shares (6) which are firmly embedded in an elastomer mass 3. During use, each individual share (6) is independently moveable from the underlying surface against the elasticity in the mass (3) with a view to absorbing or adjusting itself to irregularities (wheel track wear) in the underlying surface. The share is mounted substantially vertical and is especially designed for equipment for clearing snow, slush and ice.

Abstract: The object of the invention is a plough blade arrangement, advantageously in a snow-plough, which plough (1) is intended to be attached to a vehicle, advantageously a tractor or lorry. The plough blade arrangement includes a frame (2) consisting of a flat part removably attached to the plough (1), several blade plates (4) covering the desired working width, and attachment members for the blade plates (4) to the frame (2). The aforesaid attachment members consist of flexible members (3), which are arranged to permit the movement of the blade plates (4) essentially in only one direction in the direction of the surface of the frame (2) when the blade plate (4) strikes an obstacle or pit. In addition, the working width is divided into separate, independently flexible parts.

Abstract: A ground engaging tool for an earthworking machine comprises a ground engaging element with a cast-in-place metal matrix composite component. The ground engaging element comprises a metal base component and a metal matrix composite component. The metal matrix component is bonded to the metal base component. The metal matrix composite component consists of a preform having interconnecting porosity. The preform is formed from a material selected from one of ceramic, cermet, or mixtures thereof. The metal matrix composite component also consists of an infiltration metal. The preform is infiltrated by the infiltration metal and the infiltration metal is fusion bonded to the metal base component.

Abstract: A spool and wedge assembly for securing replaceable cutting teeth or cutting elements to the nose portions of earth moving buckets. The spool and wedge assembly comprises first and second parallel longitudinally extended spool elements, which are transversely displaced apart to engage the aligned side walls of the securing element receiving apertures, and, first and second wedge shaped elements. The wedge and spool elements are interconnected by a longitudinally disposed screw threaded bolt mechanism which is tightened to draw the first and second wedge elements together while forcing the first and second spool elements apart, such that the cutting teeth are locked in position.

Abstract: A tool for attachment to the end of the articulated arm of a backhoe or other power shovel is disclosed. The tool provides a forwardly directed blade; i.e. a blade directed away from the tractor unit of the power shovel. The blade is usable to excavate soil from under a buried pipeline, and allows an operator to see the blade while in use. The blade of the invention is substantially planar in structure, and is formed from a larger flat bottom plate welded to a smaller flat top plate. The tool additionally provides left and right ears, each ear having an upper and a lower pin hole for attachment to the end of the articulated arm. Each pin hole provides a reinforcing collar. Braces reinforce the connection between the blade and the ears.

Abstract: The device is distinctive in that tooth (D) and matching adapter (A) are both designed with matching shapes to allow, after assembly, the formation and definition of one or more spaces (V) of variable shape, as appropriate, the adapter and tooth being made with one or more openings allowing the filling and application of a special-purpose material (M) in the above-mentioned space(s), said special-purpose material fulfilling the functions of locking the tooth relative to the adapter by absolute contact between the tooth and adapter by forming a contact cushion that ensures distribution of the stresses and strains in all the areas filled by the material.

Abstract: A wear protector system for shielding the leading edge of an earthmoving implement such as a loading bucket includes an arrangement of shrouds which cover the leading edge between the laterally spaced digger teeth. Each shroud has a nose portion that wraps around the leading edge and a rearwardly extending tail portion having an abutment surface that engages an undercut abutment surface of an anchor block that is welded to the bucket. The complementary abutment surfaces retain the tail portion from moving upwardly away from the bucket surface, whereas the shroud is retained from movement forwardly out of engagement with the lip by use of a cotter pin extending transversely through a passage that is formed partially in the tail of the shroud and partially in the anchor.

Abstract: A lip shroud system which requires no additional hardware to hold a lip shroud on the front lip of an excavation bucket. The front shroud is held by mating lugs to the adapter and to an adjacent tooth pinned to the adapter. The lip bottom is protected by a wear plate held on the front lip by the front shroud. The front shroud is out of engagement with the lip. Thus, even if the lip shroud should loosen, it does not cause wear on the lip. The front shroud wedges between adjacent parts of the adapter, sideways movement of the adapter is virtually eliminated. This greatly reduces the lip wear in the adapter area. The front lip of the assembly is protected by the front shroud which is locked in place by the teeth associated with the adapter for coupling the tooth to the bucket wherein no additional weight is added to the system because no additional hardware is required for connecting the shroud to the bucket, thereby minimizing costs.

Abstract: An adapter assembly for an excavating cutterhead comprising the combination of a blade socket with a hemispherical recess, an adapter with a hemispherical-bottomed shaft to fit in the socket, and a mounting ring around the adapter head which can be indexed with respect to each other such that the adapter may be precisely replaced in an operating assembly without need to reorient the entire assembly. This is accomplished by means of mutually indexing each of the adapter and the mounting ring prior to the initial orientation of the assembly.

Abstract: A characteristic feature of the invention lies in that the striking and sic teeth are so arranged on the working edge of the bucket that the distance between the axes of the striking teeth is (3.5-4.5)b while the distance from the working edge to the blade of the striking tooth exceeds the distance from said edge to the blade of the static tooth by (1-3) b where b=width of blade of the striking tooth.

Abstract: The present invention relates to a tool and a metal tip of the tool. The tool includes a tool blank, a bearing portion and a metal tip where the tool is intended to be rotatably mounted in a road planing cutter. The longitudinal axis of the tool forms, in active position, an angle V in the interval 20.degree.-90.degree. relative to the road surface. The metal tip includes a portion for attachment to the tool blank and a cylindrical or slightly conical portion that is connected to a shape-defining surface located at the opposite end of the metal tip in relation to the attachment portion. The metal tip is mounted in the tool and contacts the road surface in the active position. The metal tip has a sharp edge in the transition between the cylindrical or slightly conical portion and the shape-defining surface.

Abstract: A carbide insert having fracture orienting grooves and a method for forming a cutting element for an earthworking machine. The carbide insert is placed in a groove formed on the cutting edge of the cutting element and there maintained by deforming walls of the cutting element into intimate contact with the carbide insert.

Abstract: A method for forming a blade adapted to be attached to an earthworking vehicle and the resultant wear resistant blade has a wear surface assembly which includes a carbide insert sandwiched between a steel plate and a composite material within a pocket on the front surface of the blade spaced from the blade cutting edge.

Abstract: The subsoiler has shank assemblies which are designed to cut a thin, clean slice in the soil without frontal upheaval forces that would cause eruption of the soil in a turbulent manner ahead of the shank line. The soil lifting components at the bottom of the shank are configured to produce generally laminar soil flow over and around their lifting surfaces so that the upwardly and outwardly directed fracturing forces occur behind the leading shank line in a readily controllable manner and without disturbing residue and other materials on top of the ground. The subsoiling profile at the bottom of the shank may be varied by interchanging variously configured points and caps which are securely but removably secured to the shank. An alternate embodiment provides adjustment of the profile presented to the soil by having a portion of the component angularly vertically adjustable to vary the angle of attack of its lifting surfaces.

Abstract: Edge protectors for the leading portions of base edges have been utilized in many application to protect the leading portion of the base edge. It is advantageous to have an edge protector that is readily removed and replaced without having to remove additional elements. In the subject arrangement, a base edge protector assembly is included having a protector mounting lug and a replaceable lip protector. The protector mounting lug has a pair of spaced apart bosses and a laterally disposed flange therebetween while the lip protector has a cavity and load transferring surfaces located in the cavity. When assembled the load transferring surfaces are in mating contact with the laterally disposed flange of the protector mounting lug. First and second pairs of aligned openings are located in the lip protector and, when assembled, are in general alignment with the openings located in each boss of the pair of bosses. Flex pins are disposed in the openings to secure the lip protector to the protector mounting lug.

Abstract: Tooth assemblies having a tip with ears extending rearwardly therefrom to mate with corresponding slots in an adapter are normally utilized in order to aid in the transfer of forces from the tip to the adapter. Since the forces being directed to the tip are normally applied in various directions and of varying magnitudes, the ears extending from the tip may be subjected to forces attempting to pry them outwardly, thus, subjecting them to the possibility of breakage. In the subject arrangement, a tip includes a pair of opposed ears each having a pair of opposed edge surfaces that are angled one relative to the other. The pair of opposed ears of the tip mates with a pair of corresponding opposed slots defined in an adapter. The pair of opposed slots in the adapter likewise has a pair of opposed edge surfaces angled with respect to one another and are in confronting mating relationship with the pair of opposed edge surfaces of the pair of opposed ears.

Abstract: A bucket wheel has a conical supporting body constructed as an inner shell rotatably mounted on the bucket wheel axis and a device which co-operates with the supporting body to accommodate the buckets on the outer rim of the bucket wheel. The supporting body is prolonged radially by a prismatic-type outer shell arranged on the supporting body parallel to the device, which has cell-forming dividing walls on its radially outward peripheral region. The prismatic shell, viewed in the radial direction, is shaped from a plurality of approximately trapezoidal steel plates which are welded to one another, making a plurality of bends, to form a polygonal conical envelope.

Abstract: A digging wheel assembly includes a supporting wheel having a peripheral zone and a plurality of receiving elements affixed to the supporting wheel in the peripheral zone in a spaced, circumferential distribution. Each receiving element has a receiving pocket and a receiving slot. Digging tool components are disposed along the peripheral zone of the supporting wheel in a circumferential distribution. Each digging tool component is disposed between two circumferentially adjoining receiving elements; one being a leading receiving element and one being a trailing receiving element as viewed in the rotary working direction of the assembly. Each digging tool component has a leading part extending from a front end of the digging tool component in the rotary working direction and being accommodated in the receiving pocket of the leading receiving element.

Abstract: An excavator for forming an underground continuous wall includes a traveling trolley movable on a ground and an upper frame constructed on the trolley. The excavator further includes a guide post vertically extending and vertically movably provided at one side of the upper frame on the trolley and variable in length by supplementary extension guide post members detachably connectable thereto through flanges. Chain sprockets rotatably provided on the guide post at its upper and lower ends and at one end rearward of the chain sprocket at the upper end of the guide post, respectively. An endless chain extends around the chain sprockets to be driven by rotation of at least one of the chain sprockets. A number of excavator buckets are provided on the endless chain therealong spaced at suitable intervals to form an endless chain bucket type cutter.

Abstract: An improved excavating bucket, having a pair of sidewalls, a rear wall, a floor portion and an open front portion for receiving material thereinto; a plurality of teeth members secured to the floor portion for digging into the material to be excavated; a finishing blade mounted to the bucket, the blade extending across a width greater than the width of the bucket opening, and having a forward edge for scraping; a raised channel formed on the upper face of the blade for engaging a plurality of the teeth members; sidewall members extending from the outer edges of the blade for engaging the wall of the bucket, for defining an uninterrupted travelling space for material into the bucket; and adjustable support rods able to be swivelly positioned between the blade and the bucket sidewalls to stabilize the blade mounted on the bucket.

Abstract: An improved plow attachment includes a mounting plate for mounting to a front end loader bucket or other primary tool or implement; a plow blade; hinge means swingably interconnecting the plow blade and the mounting plate for enabling the plow blade to move between an extended position generally parallel with the front of the bucket and a retracted position generally alongside the bucket; and brace means for securing the plow blade in the extended position.