Soil cultivating machines

Details Soil cultivating machines Soil cultivating machines

1977-06-27

1979-11-13

Shapiro, Paul E.

Earth working

With drive means for tool or cleaner

Plural driven tools

172 59, 172719, 172720, 172762, A01B 3306, A01B 3310

Patent

active

041740025

ABSTRACT:
A cultivating machine has soil working members that are driven to rotate about corresponding upwardly extending shafts. Each member includes a generally horizontal support and a tine or tine-shaped portion at each outer end thereof. The lower straight part of each tine has a chisel that is detachably secured thereto so that a leading edge of the chisel, considering the direction of rotation of the soil working member, is positioned to cut the ground. The chisel can be in the form of a knife or blade or a polygonal member with more than one side being a cutting edge. Also, the chisel can be mounted to extend at an angle to enter the ground. A fastening portion of the chisel can be sleeve-shaped and fitted on the lower active tine part.

REFERENCES:
patent: 447936 (1891-03-01), Brinkerhoff
patent: 484758 (1892-10-01), Sears
patent: 623645 (1899-04-01), Young
patent: 2110790 (1938-03-01), Daugherty et al.
patent: 2117461 (1938-05-01), Stemman
patent: 3809166 (1974-05-01), Lely et al.
patent: 3821989 (1974-07-01), Lely et al.

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