| 摘要 |
An airborne apparatus for dispensing particulate agricultural materials in precise dosages includes a rotor to uniformly deliver the particulate material from a container carried by the aircraft to a dispensing opening. A blade is provided adjacent the periphery of the rotor. The blade and the periphery of the rotor cooperate to reduce the interference of particulate material with operation of the rotor. A multi-part rotor housing provides adjustability for a variety of particulate materials. Such housing includes an arcuate housing portion and a gate-forming housing portion. The gate-forming housing portion and arcuate housing portion may be hinged to the remainder of the housing and form a dispensing opening. The arcuate housing portion can be adjusted with respect to the periphery of the rotor and can provide a reservoir of adjustable capacity between the dispensing opening and the rotor periphery. The gate housing portion is held in its normal position against the arcuate housing portion to close the dispensing opening but is movable to a position in which the dispensing opening is open.
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