Hydraulic power and control system for granular fertilizer sprea

Fluid sprinkling – spraying – and diffusing – Container for non-fluid material – and scattering means – Including driven conveyor or follower feeding material...

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222 63, 222622, 239156, E01C 1920

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active

042124280

ABSTRACT:
A trailer-type vehicle for transporting and dispensing solid materials over the ground includes a self-contained, hydraulic power and control system driven by one of the vehicle's ground engaging wheels which operates a first dispensing mechanism at a selectable speed proportional to the vehicle's rate of travel over the ground, but operates a second dispensing mechanism at a constant speed regardless of the vehicle's rate of travel. A single hydraulic motor driven by a selectively engageable drive train connected with one of the vehicle's wheels is novelly employed as a hydraulic pump for delivering a force transmitting fluid through a pair of control valves to a pair of hydraulic motors respectively powering the dispensing mechanisms. One of the control valves includes provision for selectively adjusting the flow rate to the associated hydraulic motor thereby allowing adjustment of the volume of material being dispensed per area of ground covered by the vehicle.

REFERENCES:
patent: 3344993 (1967-10-01), Wilder et al.
patent: 3401890 (1968-09-01), Middlesworth
patent: 3429418 (1969-02-01), Fyrk
patent: 3511411 (1970-05-01), Weiss
patent: 3550866 (1970-12-01), Swenson
patent: 3776431 (1973-12-01), Riley
patent: 4098433 (1978-07-01), Oligschlaeger

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