Tractor mounted scraper blade

Details Tractor mounted scraper blade Tractor mounted scraper blade

E - Fixed Constructions

02

F

37/37

E02F 3/76 (2006.01) E02F 3/84 (2006.01)

Patent

CA 1064254

TRACTOR MOUNTED SCRAPER BLADE ABSTRACT OF THE DISCLOSURE A material handling assembly has a frame for attach- ment to the three point hitch of a tractor. A laterally swing- able boom extends rearwardly from the frame and has an upright shaft at its rear end rotatable about an upright axis for sus- pending a reversible scraper blade whose angularity may be varied as the shaft is rotated. The blade is releasably at- tached to and tiltable relative to the shaft. All four func- tions of raising and lowering the frame, swinging the boom, varying the angularity of the blade and tilting the blade are hydraulically controlled. A special four bar linkage coupled with the shaft provides for wide blade angularity adjustment. A fluid bypass arrangement interconnects the swing and angularity functions to accommodate for excessive loads which may be en- countered when the attitude of the blade is to be varied in accordance with desired grading operations.

263288

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