Towed, powered, land grader

Details Towed, powered, land grader Towed, powered, land grader

1989-09-12

1990-12-11

Reese, Randolph A.

Excavating

Railway graders

Side former

37189, 37DIG13, 172 78, 404 90, 404122, E02F 378

Patent

active

049760521

ABSTRACT:
A land grader for grading an unprepared or partially prepared soil surface, as a step in the preparation of a roadbed. The land grader has a frame fixed at a forward end to the tractor and is supported at a rearward end to a plurality of tamping wheels. On the frame are mounted a plurality of rotary cutters which are offset laterally and axially from one another along an angle to the direction of travel. The rotary cutters have scraper blades mounted between them.

REFERENCES:
patent: 1120179 (1914-12-01), Bleuns
patent: 1182067 (1916-05-01), Whittell
patent: 1525262 (1925-02-01), Austin
patent: 1945733 (1934-02-01), Court
patent: 3443326 (1969-05-01), Saumenig
patent: 4624197 (1986-11-01), Drake

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