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Counties
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Automatic Railway-Switch Operating Mechanism
Patent for an automatic railway switch operating mechanism with improved levers and controls.
Date:
August 8, 1911
Creator:
Hoffmann, Laniel F.
System:
The Portal to Texas History
Improvement in Seed-Planters.
Patent for a seed-planter using two vibratory vertical feed-wheels, similar in size to distribute different seeds at the same time, one is designed specifically for cotton seeds, illustration is included.
Date:
August 16, 1859
Creator:
Murphy, Willis G.
System:
The Portal to Texas History