| 摘要 |
11 A grain bin auxiliary floor that includes a plurality of generally side-by - side panels with their adjacently disposed edges overlapping one another .The panels cover an area corresponding to that of a horizontally flat circular floor of a conventional grain bin. The panels have one end thereof proximate a central portion of the flat floor and an opposite end adjacent an inner face surface of the grain bin outer wall. One end of the panels is hingedly connected to the flat floor adjacent the central portion thereof and the other end is free to move in a vertical direction. An inflatable annular air bag is located below the panels and by inflating the same the free outer ends of the panels are raised sufficiently to provide a hopper type floor that facilitates emptying grain from the bin by an auger with an in- feed end thereof located in the central portion of the floor.
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