Earth working – Having tool overload shift controlled by a fluid pressure...
Patent
1985-10-28
1987-07-14
Johnson, Richard J.
Earth working
Having tool overload shift controlled by a fluid pressure...
172700, 172502, 172739, A01B 1308, E02F 532
Patent
active
046796355
ABSTRACT:
A ground ripping attachment for pivotal connection to the drawbar of a winch, and liftable by cable on a towing vehicle to clear the ground, or releasable so as to be free of the tractor save for its drawbar connection. The attachment has a main frame which at its forward portion is pivotally connected to the drawbar, and has ground ripping means rearwardly of such pivotal connection. The ground ripping means is carried by one or more subframes which are pivotally mounted on the main frame for pivotal movement about horizontal axes. An accumulator urges the subframes to remain in their operative positions. The main frame has a stop for each subframe against which the subframe is caused to engage by the accumulator so that the individual subframes can individually automatically trip upon engaging immovable objects. Means are provided for fore and aft adjusting movement of the stop to vary the angle of attack of each ground ripping means.
The relative spacing of the ground ripping means rearwardly of the horizontal pivot axis, and the vertical distance of the soil ripping means from a plane containing a horizontal axis, is important.
The invention also includes an apparatus comprising a towing vehicle or crawler tractor in towing relation to an attachment as above described.
REFERENCES:
patent: D244751 (1977-06-01), Watts
patent: D244752 (1977-06-01), Watts
patent: 1681423 (1928-08-01), Monsarrat
patent: 2826131 (1958-03-01), Willet
patent: 3120281 (1964-02-01), Peveler
patent: 3171500 (1965-03-01), Dils
patent: 3207232 (1965-09-01), Bechman
patent: 3420273 (1969-01-01), Greer
patent: 3606928 (1971-09-01), Quanbeck
patent: 4079789 (1978-03-01), Byrd
V-Shaped Parabolic Subsoiler, advertizing brochure of Beit Hashitta Israel, 1/1981.
LandOfFree
Self-tripping rippers does not yet have a rating. At this time, there are no reviews or comments for this patent.
If you have personal experience with Self-tripping rippers, we encourage you to share that experience with our LandOfFree.com community. Your opinion is very important and Self-tripping rippers will most certainly appreciate the feedback.
Profile ID: LFUS-PAI-O-1422683