A - Human Necessities – 01 – C
Patent
A - Human Necessities
01
C
A01C 17/00 (2006.01) A01C 15/18 (2006.01) B65G 31/04 (2006.01)
Patent
CA 2300340
A granular material spreader is adapted for towing behind a yard tractor. A frame supports an inverted cone which is sized to contain a supply of granular material for distribution. The bin sweep rod is carried adjacent to the inside surface of the cone, and turns a drive spring. The drive spring drives a helix, which rotates about the bin sweep rod, driving the granular material toward the narrow base of the cone. Should the helix become jammed, the drive spring snaps past the helix, rather than risk damage by forcing its movement. A bin sweep drive wheel is also driven by the revolution of the bin sweep. Movement of the wheel against the an upper portion of the outside surface of the cone moves the bin sweep rod and helix in a circular path about the inside surface of the cone. A valve at the base of the cone allows granular material to drop into a housing which defines slots about portions of its perimeter. The blade support plate, rotating at the base of the housing, carries a plurality of blades, which drive the granular material through the slots and from the housing. The vane support plate, rotates just below the blade support plate carrying a plurality of vanes. Movement of the vanes throws the granular material ejected from the housing by the blades in a wide-spread and evenly distributed manner.
Seaby & Associates
Whitell David
LandOfFree
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