Resiliently mounted earth smoothing roller

Details Resiliently mounted earth smoothing roller Resiliently mounted earth smoothing roller

1984-08-14

1987-03-10

Johnson, Richard J.

Earth working

Rolling, rotating or orbitally moving tool

Tool has circumferentially spaced teeth, tines, blades or...

172573, 172556, A01B 2104, A01B 3528

Patent

active

046484655

ABSTRACT:
An implement for levelling the surface of an agricultural field, a so-called furrow-smoother, comprises a plurality of rings of rotary knives to throw the surface earth laterally away from the higher areas. The rings of knives are journalled in bearings which are suspended from a carrier frame by means of arms that extend below the bearings and substantially tangentially therefrom so as not to catch plant remains (straw, stem, and root material) carried along by the two knife rings sweeping on either side of the bearing arm.

REFERENCES:
patent: 617070 (1899-01-01), Anderson
patent: 688626 (1901-12-01), Friberg
patent: 889486 (1908-06-01), Ross
patent: 925926 (1909-06-01), Lindgren
patent: 1058140 (1913-04-01), Beene
patent: 1800634 (1931-04-01), Isenberg
patent: 3452826 (1969-07-01), Lehman
patent: 3967685 (1976-07-01), Siekmeier
patent: 4102406 (1978-07-01), Orthman
patent: 4231433 (1980-11-01), Whitfield
patent: 4415041 (1983-11-01), Fackler

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