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4 Matching Results
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Reed Organ
Patent for improved construction of reed boards that prevents dust from getting inside of the reeds.
Date:
November 7, 1916
Creator:
Preston, Percy
System:
The Portal to Texas History
Trolly Wheel and Harp.
Patent for trolley wheels, where "the transmission of the current through the wheel to the harp is maintained at the maximum and the necessary wear of the relatively movable parts reduced to a minimum" (lines 11-15).
Date:
May 7, 1912
Creator:
Neighbour, William W.
System:
The Portal to Texas History
Cotton-Harvester.
Patent for a cotton harvester designed for the harvesting of the cotton crop, including illustrations.
Date:
April 7, 1914
Creator:
Upshaw, Lucius L.
System:
The Portal to Texas History
Cotton Cleaning and Extracting Machine.
Patent for a new, efficient machine, with a double purpose: "to clean hand-picked cotton and better prepare it for the ginning operation" (lines 11-13) and to extract cotton "from unripe and closed bolls" (lines 14-15).
Date:
March 7, 1916
Creator:
Blackmon, Enoch J.
System:
The Portal to Texas History