Unearthing plants or buried objects – Extractor – Opposed plant engagers
Patent
1997-06-13
1999-08-24
Batson, Victor
Unearthing plants or buried objects
Extractor
Opposed plant engagers
171 55, 56502, 56503, 241101763, 241236, 2411864, A01D 1300
Patent
active
059413166
ABSTRACT:
A stalk puller and chopper assembly 10 drawn behind a tractor 11, the stalk puller and chopper assembly comprising a puller means in the form of a pair of contra-rotating rubber wheels 12 and 13 on a shaft 21. The wheels are located upstream of a feeder means comprising a pair of guide plates 14 and 15 and an array of toothed feeder blades 16 mounted on a feeder shaft 17. The guide plates co-operate with the wheels and the rotating feeder blades 16 to deliver stalks extracted by the wheels to a downstream chopper assembly 19 where chopper blades 18 on shaft 22 shred the stalks which are then discharged rearwardly at 20 in the form of mulch. As can be seen the stalks are controllably delivered sideways into the choppers. The clearance between the cutter blades 18 and the anvils of the toothed feeder blades is exaggerated in the drawings with the usual clearance being about 2 mm. The toothed feeder blades rotate at approximately 100 RPM while the cutter blades rotate at approximately 900 RPM, the interaction between the blades and the toothed wheels and the stalks being chopped results in a self cleaning action of the toothed feeder blades and cutter blades thereby inhibiting any clogging.
REFERENCES:
patent: 2337355 (1943-12-01), Spell
patent: 2530466 (1950-11-01), Heimark
patent: 3770064 (1973-11-01), Scarnato et al.
patent: 4026092 (1977-05-01), Wehde
patent: 4350207 (1982-09-01), Ben-Dor
patent: 4397136 (1983-08-01), McLeod
patent: 4588033 (1986-05-01), Orthman
patent: 4751812 (1988-06-01), Lubetzky et al.
Batson Victor
Great Western Corporation Pty Ltd.
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