Grain spreader
OwnerDonald Y. Clarkinventor
Life of this patent
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Abstract
A spreader for feeding and uniformly distributing grain in a bin. The spreader has a hopper to receive the incoming grain. A screw mounted in the hopper evenly spreads the grain and propels it into a chute whose discharge mouth is normally closed by a spring pressed gate, or valve. A rotary thrower blade, mounted below the chute, aids the chute to distribute the grain generally radially and downwardly uniformly in the bin. The screw, the discharge chute and the thrower are driven as a unit by a single shaft, mounted coaxially in the hopper, and rotated by a motor mounted externally of the hopper. The pressure of grain movement propelled by the screw opens the chute gate allowing grain to pass to the spreader.
Claims17
A grain spreader comprising, a hopper having a grain inlet and a grain outlet, a power driven auger mounted within the hopper for spreading incoming grain evenly and for propelling the grain toward the outlet, a discharge chute rotatably mounted next to the hopper outlet, said chute having a grain entrance end and a grain exit end and including at least one spring pressed closure plate normally tending to prevent passage of grain through the chute, an axle for said chute, motor means for driving said chute and axle, and a thrower member mounted on said axle adjacent the exit end of the chute, whereby pressure of grain movement caused by rotation of the auger will cause said closure plate to open, allowing grain to pass uniformly through the hopper and discharge chute and to be spread evenly by the chute and the thrower member.
Dependencies are inferred from the claim text.