Tiltable box scraper for three-point attachment to a tractor

Details Tiltable box scraper for three-point attachment to a tractor Tiltable box scraper for three-point attachment to a tractor

1980-12-08

1982-07-06

Johnson, Richard J.

Earth working

Mast type hitch

Including blade, scraper, or smoother

172459, E02F 376

Patent

active

043378331

ABSTRACT:
An improved tiltable box scraper for attachment to a standard three-point hitch at the rear of a farm tractor or the like. The box scraper characterized by having a single hydraulic cylinder mounted thereon for tilting the scraper in opposite directions independently of the position of the tractor on the ground surface.

REFERENCES:
patent: 1928778 (1933-10-01), Austin
patent: 2493565 (1950-01-01), Arps
patent: 2723472 (1955-11-01), Bartlett
patent: 3302317 (1967-02-01), Domres
patent: 3515221 (1970-06-01), Fowler
patent: 3598186 (1971-08-01), Coontz
patent: 3858663 (1975-01-01), Lurwig
patent: 4061194 (1977-12-01), McCanse
patent: 4082150 (1978-04-01), Winkles
patent: 4189009 (1980-02-01), Welch

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