Earth working – With drive means for tool or cleaner – Plural driven tools
Patent
1977-04-05
1979-02-27
Johnson, Richard J.
Earth working
With drive means for tool or cleaner
Plural driven tools
172776, A01B 3306
Patent
active
041414209
ABSTRACT:
A rotary harrow has a row of soil working members that are rotatable about upwardly extending axes defined by shafts journalled in an elongated, hollow frame portion. The frame portion is formed by opposing U-shaped upper and lower portions that have abutting rims clamped together by releasable fastening means. Driving gears are housed, together with lubricant, within the frame portion. The lateral sides of the frame portion are closed by vertical sector plates which are attached to the lower frame portion. Inwardly projecting ribs on the plates coextend with the inner surfaces of the upper frame portion and a gasket is sandwiched between those surfaces and the ribs. A supporting roller is located to the rear of the soil working members and arms pivotably interconnect the roller to the sector plates so that adjustment can be made to regulate the working depths of the working members.
REFERENCES:
patent: 1299944 (1819-04-01), Houston
patent: 2857074 (1958-10-01), Hutterer
patent: 3841411 (1974-10-01), Lely et al.
patent: 3899030 (1975-08-01), Lely et al.
German Printed App. No. 2,162,433, 7/1972, Lely.
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-718601