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Churn-Dasher.
Patent for "a churn dasher to which a rotary movement shall be imparted by the resistance offered by the fluid to the dasher when the latter is given a vertical reciprocating movement in the ordinary manner, the rotary movement being constantly in one direction, irrespective of the direction of the vertical reciprocating movement" (lines 13-21).
Date:
May 16, 1893
Creator:
Cannon, Burrell
System:
The Portal to Texas History
Silo
Patent for a air-and-liquid tight silo structure that "may be built up readily out of a plurality of relatively small stock units which may be handled easily" (line 11-13).
Date:
March 16, 1915
Creator:
Shoupe, Joseph Richard
System:
The Portal to Texas History