Caterpillar Tractor Co.

William J Black

Eugene M Wilson

Warner G Richardson

William E Lanz

In a self-loading scraper, an elevator is provided with a linkage assembly for upward movement of the elevator about an axis offset from the center of the elevator. Spaced fixed stops are carried by the scraper bowl with a member on a bracket carried by the frame of the elevator engaging one of the fixed stops to limit downward movement of the elevator and a second member is movable with said bracket for engagement with the second fixed stop to limit upward movement of the elevator.

Elevating scraper up-stop mechanism

In a self-loading scraper, an elevator is provided with a linkage assembly for upward movement of the elevator about an axis offset from the center of the elevator. Movable stops carried by the elevator engage with spaced, fixed stops carried by the scraper bowl so as to limit the upward and downward movement of the elevator relative to the cutter blade on the bowl.

A guard is removably secured to the sidewall at the leading edge of an open-ended scraper bowl of a self-loading scraper and extends inwardly towards an elevator mechanism centrally disposed at the open end of the scraper bowl. The guard is disposed rearwardly of a rod of a hydraulic lift cylinder for shielding the rod from loose noncohesive material in the scraper bowl and for aiding in the retention of such material in the scraper bowl.

Guard for hydraulic cylinder rods

The tool of an earthworking machine has a support and load transfer lug attached to the internal surface of the tool at the cutting edge by an attaching portion and a cylindrical mating portion extending forwardly and overlapping the cutting edge. A tooth adapter is mounted on the lug by means of a cavity in one side of the adapter, the cavity overlapping the attached portion of the lug, and a cylindrical bore communicating with the cavity closely fitting on the mating portion of the lug. The tooth adapter extends forwardly and carries thereon a tooth. A bolt extends through a rearward extension of the tooth adapter and the cutting edge of the tool to detachably affix the tooth adapter to the tool.

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Wilmington, IL, United States of America

William J Black