Abstract: A high capacity bucket arrangement for a work machine having a pair of opposite side plates and a moldboard extending between, and attached to, the side plates. The trailing portion of a base plate is attached to the top portion of the moldboard, while the leading portion of the base plate is outwardly curved, relative to the bottom portion of the moldboard, which allows for a greater bucket capacity as well as the generated bucket breakout force.

Abstract: A quick coupler for manually coupling a tool, such as a bucket, to an earth working machine. The latching mechanism of the quick coupler includes a pair of mounting plates, each having a pair of openings therein, affixed between two laterally spaced plates of the coupler, wherein one of the mounting plates include threaded openings therein. A latch bar which is slidably mounted between the plates. A pair of fasteners extending from the latch bar, wherein the fasteners include a first and second threaded region, separated by a non-threaded region. The threaded regions of the fasteners threadedly engage the threaded openings of the one mounting plate, while the non-threaded region bypasses the opening.

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: A quick coupler for detachably coupling a bucket or other work tool to the stick of an excavator or backhoe is disclosed. The quick coupler has a latching mechanism with is powered by a single acting cylinder to unlatch the coupler and which is powered by both a spring device and a gas charged accumulator to latch the coupler to the bucket.

Abstract: In earthmoving buckets, and more especially in deep buckets, the heel portion is subjected to excessive wear due to its extended shape rubbing or impinging upon excavation material while engaged in digging operations. The present invention teaches a bucket shape which reduces the wear of the heel portion while retaining bucket capacity by using a multiple radius design to define the shape in profile.

Abstract: A lubricating system for a mechanism having a rotatable shaft supported in a housing by bearings. The lubrication system includes an open-ended axially extending fluid passage defined by the shaft, a fluid conduit defined by the housing, and a disc-shaped fluid diverter for fluidically joining the fluid passage in the shaft with the fluid conduit in the housing. The fluid diverter is arranged at the open-end of the shaft and includes a concentric hollow pilot portion extending at least partially, within the fluid passage in the shaft. The fluid diverter defines a series of open-ended channels which radially extend from and are joined in fluid communication with the hollow pilot portion. At least one port extends from the channel to direct lubrication toward the bearings supporting the shaft. Annular seals provided at the radial edges of the disc-shaped fluid diverter facilitate fluid flow between the channels in the diverter and the fluid passage in the housing.

Abstract: A lifter-carrier for lifting and carrying cylindrical objects such as hay bales on two booms adapted to slide under the curved sides of at least one cylindrical object. The booms are raisable to a position above the ground to carry the objects on wheels under the booms and under a towing assembly which can be a tractor or truck.