Control arrangement for crop discharging device of an...

Crop threshing or separating – Transport conveyor

Reexamination Certificate

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Reexamination Certificate

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07063614

ABSTRACT:
A crop discharging device, such as a discharge spout for a crop chopping machine, has a crop input end mounted for swiveling about an inclined upright axis and for pivoting vertically about a horizontal axis. The discharge spout also includes a vertically adjustable flap at its discharge end for directing the flow of crop from the spout. A first actuator is provided for effecting movement of the spout about the upright axis, a second actuator is provided for effecting movement of the spout about the horizontal axis and a third actuator is provided for effecting movement of the flap. A control arrangement, which includes a memory into which a preset correlation table, or the like may be loaded, is provided for automatically controlling the position of the second actuator as a function of the position of the first actuator so as to maintain a given discharge height. In the same way, the control arrangement is capable of automatically controlling the third actuator as a function of the operation of the second actuator so as to maintain a desired direction of flow of the crop from the spout during adjustment of the height of the discharge end of the spout.

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