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Pea or Bean Thrasher.
Patent for a new and improved pea or bean thrasher. This design consists, "with the main frame, having a removable top and an inclined bottom containing the thrashing concave and cylinder, of the fan-chamber and fan, the air-chamber having an aperture intermediate of the fan-chamber and concave, and means . . . for rotating said cylinder and fan" (lines 5-12).
Date:
April 5, 1892
Creator:
Grayson, William Henry
System:
The Portal to Texas History