Blade plow with resilient mounting

Details Blade plow with resilient mounting Blade plow with resilient mounting

1988-08-01

1990-06-12

Johnson, Richard J.

Earth working

Draft, pitch or ground level responsive depth control

172322, 172720, 172253, 172747, 172498, 172678, A01B 6314, A01B 63114

Patent

active

049324756

ABSTRACT:
This invention relates to a blade plough suitable for use on undulating ground. The blade plough has a floating blade which is able to pivot irrespective of the drawbar attachment to the tractor. A spring mechanism is provided to bias the blade in an operative attitude and thereby compensate for varying soil conditions. The blade also comprises an improved cutting edge having a hard laminate on its underside. Blade extension members are provided for varying the operating width of the blade.

REFERENCES:
patent: 1801979 (1931-04-01), Robinson
patent: 1854902 (1932-04-01), Johansen
patent: 1854903 (1932-04-01), Robinson
patent: 1934645 (1933-11-01), Rhodes
patent: 2323412 (1943-07-01), Noble
patent: 3684032 (1972-08-01), Hawkins
patent: 3882749 (1975-05-01), Tourek
patent: 4106568 (1978-08-01), Cline
patent: 4108248 (1978-08-01), Anderson
patent: 4217962 (1980-08-01), Schaefer

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