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Means for Automatically Closing Electric Circuits
Patent for a means for automatically closing electric circuits, specifically for railway systems. Illustrations included.
Date:
February 18, 1908
Creator:
Keeler, Fayette William
System:
The Portal to Texas History
Cotton-Chopper.
Patent for cotton-choppers in which it can be converted into cultivators; the height and sweep of the rotary chopper can be adjusted. The depth of penetration of the cultivator-shovels can also be adjusted independently without affecting other part of the machine. Illustration is included.
Date:
February 24, 1903
Creator:
Talley, George C.
System:
The Portal to Texas History