Earth working – With drive means for tool or cleaner – With cleaner or comminutor spaced from ground surface
Patent
1974-05-20
1976-05-04
Burr, Edgar S.
Earth working
With drive means for tool or cleaner
With cleaner or comminutor spaced from ground surface
172 46, 172 60, 172 66, 172 97, 172123, A01B 3302, A01B 3312
Patent
active
039541436
ABSTRACT:
A rotary plough has a rotor that rotates about a horizontal axis defined by a central support. The rotor comprises three spaced apart groups of soil working tines and each group includes a row of tines mounted on arms that extend radially with respect to the support. Each row of tines is independently connected via a chain transmission to a toothed pinion on the central support so that as the entire rotor turns about the support, each row of tines is also revolved about a horizontal axis. The central support is rotated by a further sprocket and chain transmission connected to a gear box with a P.T.O connection. The central support is surrounded by a second rotatable support on which radial scrapers are mounted. The gear box is connected to rotate the entire rotor as a whole and the three groups of tines in the same direction so that the tines are moved through the soil rearwardly with respect to the normal direction of travel. The scrapers are turned in an opposite direction to intersect the paths of travel of the tines and to scrape some of the earth. The scrapers and tine rows are geared to revolve twice for each full turn of the rotor. The tines are bolted to their holding supports and curved to dig out and lift up slices of soil which are then inverted and deposited on the ground. The digging or angled positions of the tines can be adjusted by a fixing arrangement at one end of the central support.
REFERENCES:
patent: 345903 (1886-07-01), Johnson
patent: 541411 (1895-06-01), Allerton et al.
patent: 1552362 (1925-09-01), Versteeg
patent: 2412715 (1946-12-01), Callahan
patent: 2514395 (1950-07-01), Iseman
patent: 2845015 (1958-07-01), Carawan
patent: 3297095 (1967-01-01), Lely
Burr Edgar S.
Sewell Paul T.
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