A - Human Necessities – 01 – B
Patent
A - Human Necessities
01
B
97/69
A01B 33/06 (2006.01) A01B 73/00 (2006.01)
Patent
CA 1043622
ABSTRACT C. van der Lely N.V. Waverskade 10, Naseland, The Netherlands. "Rotary harrows" The invention relates to soil cultivating imple- ments or rotary harrows which comprise a plurality of soil-working members that are rotatable about correspond- ing upwardly extending axes. The soil-working members are arranged in a row that extends substantially horizontally transverse to the intended direction of operative travel and are arranged to be power-driven by a treater or ether vehicle which moves the implement or harrow over the ground in the use thereof. A supporting structure of frame for the soil- working members has at least three ground wheels which are arranged in not less than two separate group that are upwardly and downwardly displaceable relative to said structure or frame. Each group is provided with at least one corresponding gear box containing parts of a drive transmission to the members of that group.
232867
Bom Cornelis J. G.
Lely Ary Van Der
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