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in subjects: "threshing devices"  
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Improvement in Thrashing-Machines.

Description: Patent for "new and useful improvements on machinery for thrashing various kinds of grain, whereby the work is performed in a very rapid and perfect manner, without impairing the straw." (lines 28-32) Instructions and illustrations are included.
Date: September 13, 1870
Creator: Fuos, Matthias
Item Type: Refine your search to only Patent
Partner: UNT Libraries Government Documents Department

Seed-Grader.

Description: Patent for a machine which uses blasts of air to separate batches of commingled seeds or to sort one type of seed into groups according to size. Designed to be easily cleaned and repaired.
Date: April 10, 1917
Creator: Leach, Grover C.
Item Type: Refine your search to only Patent
Partner: UNT Libraries Government Documents Department
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