Harvesters – Motorized harvester – With selective control of drive means
Patent
1976-07-01
1977-08-23
Eskovitz, Jay N.
Harvesters
Motorized harvester
With selective control of drive means
56 119, 56 159, 56228, 172456, A01D 7522
Patent
active
040430995
ABSTRACT:
A pull-type harvesting machine in the form of a baler has a vertically adjustable windrow pickup mechanism and a generally fore-and-aft laterally swingable tongue that connects the baler to a towing tractor, lateral adjustment of the tongue causing the baler to shift between a transport position behind the tractor and an operating position wherein the pickup mechanism is disposed outwardly of the tractor. The positions of the tongue and the header are respectively controlled by a pair of two-way hydraulic cylinders, and the flow of pressurized fluid between the cylinders and the tractor hydraulic system is controlled by a single control valve on the tractor, the cylinders being connected in parallel. A pair of solenoid-actuated valves are disposed in the hydraulic lines on the opposite sides of the cylinder that controls the tongue, the solenoid valves being powered by the tractor electrical system and controlled by a switch on the tractor so that the operator can selectively lock out the tongue control cylinder, whereby the pickup mechanism and the tongue can simultaneously be adjusted from their transport to their operating condition or the pickup mechanism can be vertically adjusted independent of the tongue.
REFERENCES:
patent: 3535860 (1970-10-01), Schwalm et al.
Deere & Company
Eskovitz Jay N.
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