Lister stabilizer

Details Lister stabilizer Lister stabilizer

1977-11-21

1979-03-06

Johnson, Richard J.

Earth working

Diverse tools

Including vertical, longitudinally oriented disc or blade

172725, 172752, A01B 500

Patent

active

041425880

ABSTRACT:
Plowshares and double moldboards which form listers are attached to shanks connected to a toolbar or frame drafted behind a towing vehicle. Rotatable stabilizing discs, or colters, are rigidly affixed to the shanks behind the moldboards and plowshares. The discs engage solid soil behind the moldboards, thereby impeding lateral movements of the plowshares and moldboards and stabilizing the listers.

REFERENCES:
patent: 297815 (1884-04-01), Laughlin
patent: 458121 (1891-08-01), Thaden
patent: 459667 (1891-09-01), Wilson
patent: 1162842 (1915-12-01), Yost
patent: 1313611 (1919-08-01), Stirling
patent: 1585510 (1926-05-01), Ray
patent: 2043619 (1936-06-01), Henley
patent: 2414175 (1947-01-01), Silver

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