Earth working – Diverse tools – Second implement follows path of first
Patent
1975-04-07
1976-11-16
Stouffer, Richard T.
Earth working
Diverse tools
Second implement follows path of first
172614, 172645, 172657, 172691, 172705, 172742, 172763, A01B 4902, A01B 3100
Patent
active
039918319
ABSTRACT:
A field drag particularly adapted for use in conjunction with a post-plowing cultivating implement includes a mounting bar section pivotally secured to the frame of the implement and extending in a rearward direction behind the implement. A plurality of spaced, soil-working teeth are secured to the bar section and extend downwardly therefrom and generally toward one end of the bar section so as to form an acute included angle with respect to the bar section. An adjustable spring tension arrangement pulls the bar section resiliently toward the implement thereby urging the teeth into the soil as the drag is pulled across a seedbed to break up and pulverize clods and smaller chunks of earth into loose soil. In a modified form, the teeth may be fastened to the bar section to slant selectively toward one end or the other of the bar section.
REFERENCES:
patent: 231257 (1880-08-01), Barley
patent: 681070 (1901-08-01), Oran
patent: 817150 (1906-04-01), Allen
patent: 839800 (1907-01-01), Adix
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patent: 1710420 (1929-04-01), Hoekstra
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patent: 3043377 (1962-07-01), Urben
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patent: 3500936 (1970-03-01), Vigen
patent: 3827505 (1974-08-01), Sosalla
"Pressure-Matic and Clod-Buster Plow Harrows", Royal Industries, Noble Division, Sac City, Iowa, May, 1975.
Lee Blacksmith, Inc.
Stouffer Richard T.
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