Pump System. (open access)

Pump System.

Patent for a pump system with an improved air compressor for use in cars that produces a very quiet engine.
Date: July 25, 1911
Creator: Read, William K.
System: The Portal to Texas History
Seed-Dropper. (open access)

Seed-Dropper.

Patent for a seed dropper that is used to drop peas or other seeds between hills of corn. This tool is very light and can be handled with one hand.
Date: July 31, 1917
Creator: Hefner, John M.
System: The Portal to Texas History
Cotton-Picker (open access)

Cotton-Picker

Patent for a cotton picker that can be used on several rows of cotton at a time. Illustrations included.
Date: July 16, 1912
Creator: Meier, John
System: The Portal to Texas History