Earth working – With drive means for tool or cleaner – Plural driven tools
Patent
1976-09-07
1980-01-15
Shapiro, Paul E.
Earth working
With drive means for tool or cleaner
Plural driven tools
172 96, A01B 3314
Patent
active
041834127
ABSTRACT:
A rotary harrow has soil working members that are driven to rotate on upwardly extending shafts. Each member has a horizontal central support, and an arm pivoted at each opposite end of the central support. A tine is fastened to the outer end of each arm and a soil working portion thereof extends down to work the soil upon rotation of the soil working members. A helical spring on each pivot extends to stops on the central support and the corresponding arm to bias that arm with tine to a forward operative position. Upon striking an obstacle, the tine and arm can pivot rearwardly and the spring urges same back to operative position when the obstacle is passed.
REFERENCES:
patent: 216343 (1879-06-01), Odell
patent: 764365 (1904-07-01), Mercer
patent: 2162648 (1939-06-01), Slusher
patent: 2164233 (1939-06-01), Dobbs
patent: 3115190 (1963-12-01), Listiak
patent: 3139049 (1964-06-01), Brown
patent: 3724182 (1973-04-01), Long et al.
patent: 3774688 (1973-11-01), van der Lely et al.
LandOfFree
Rotary harrows does not yet have a rating. At this time, there are no reviews or comments for this patent.
If you have personal experience with Rotary harrows, we encourage you to share that experience with our LandOfFree.com community. Your opinion is very important and Rotary harrows will most certainly appreciate the feedback.
Profile ID: LFUS-PAI-O-1024434