Harvesters – Vegetable gatherer – Asparagus havester
Patent
1978-06-12
1980-02-26
Eskovitz, Jay N.
Harvesters
Vegetable gatherer
Asparagus havester
56 102, 56 144, 56155, A01D 4600
Patent
active
041899067
ABSTRACT:
An attachment to a conventional tomato harvester to accommodate the harvesting of tomato crops in areas where tomato vines are grown through holes in sheet plastic, disposed atop the ground in the tomato fields. A shearing device is vertically pivotally carried centrally of the forward bottom end of a conveyor which transports the tomato vines rearwardly upwardly into the harvester, after being cut just above the sheet plastic, for removal of the tomatoes from the vines, as well as for cleaning, sorting, etc. Rearwardly of the shears, a pair of large rotary brushes feed the vines to a paddle wheel device which cooperates with the brushes in initiating the movement of the vines upwardly with the conveyor movement. A pair of electric switches, operably associated with the shears, control an up and down pivotal movement of the conveyor, by means of a solenoid operated hydraulic valve, to compensate for the rise and fall of the ground level, thereby maintaining a substantially constant spacing between the cutting edge of the shears and the top surface of the sheet plastic.
REFERENCES:
patent: 2210219 (1940-08-01), Sievers et al.
patent: 2949716 (1960-08-01), Thomson
patent: 3624990 (1971-12-01), Sinden et al.
patent: 3653194 (1972-04-01), Lachman
patent: 3662525 (1972-05-01), White
patent: 3736734 (1973-06-01), Pavel
patent: 3921375 (1975-11-01), Cetrulo, Jr.
patent: 4124970 (1978-11-01), Bernhardt
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