Earth working – With drive means for tool or cleaner – Plural driven tools
Patent
1978-09-29
1981-02-24
Shapiro, Paul E.
Earth working
With drive means for tool or cleaner
Plural driven tools
172 56, 172 68, 172 70, 172118, 172552, 172713, 172762, A01B 1916, A01B 2302, A01B 2700
Patent
active
042521998
ABSTRACT:
A soil working machine has elongated carriers that extend transverse to the direction of travel, one behind the other. Eccentric mechanisms are attached to each carrier to move tools depending from the carriers, back and forth in directions parallel to the direction of travel. The eccentrics have upper supports connected with resilient controls and lower supports of unequal lengths so that the tools work different paths. A front levelling member is connected to the frame via a parallelogram linkage and the rear carrier has a row of tines. A supporting roller is connected to the frame by arms each of which has two portions. The portions can be pivoted or slid towards and away from one another so that the roller is also moved towards and away from the carriers. Also, the arms with roller are vertically adjustable and fixable in position.
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