Device for controlling agricultural implements mounted on an agr

Details Device for controlling agricultural implements mounted on an agr Device for controlling agricultural implements mounted on an agr

1979-05-08

1981-09-15

Pekar, John A.

Earth working

Automatic power control

Draft responsive

A01B 63111

Patent

active

042892082

ABSTRACT:
A device for controlling an agricultural implement mounted on a tractor includes an auxiliary hydraulic jack which exerts a force on a resiliently flexible bar sufficient to limit the deformation of the bar due to reaction forces, when the implement is in use in a ground-engaging position, thereby acting, through a transmission linkage, on a movable control member of an hydaulic distributor to urge the member into its rest position and return the implement rapidly to its lowered position to achieve an even working of the ground. An adjustable throttle valve meters the operation of the auxiliary jack to maintain a desired working characteristic.

REFERENCES:
patent: 3463511 (1969-08-01), Murphy et al.

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