Change-Speed Gearing (open access)

Change-Speed Gearing

Patent for "power transmission for automobiles... provides a driving shaft and a driven shaft arranged in alignment, and a countershaft which parallels the driving and driven shafts and carries a set of gears that continuously mesh."
Date: October 13, 1914
Creator: Relle, William A. So
System: The Portal to Texas History
Disk Cultivator (open access)

Disk Cultivator

Patent for improvements to a disk cultivators which allows for the disks to hit the ground at various angles, thus improving cultivation,
Date: May 12, 1914
Creator: Atkinson, William H.
System: The Portal to Texas History
Disk Cultivator (open access)

Disk Cultivator

Patent for an improvement on disk cultivators. This makes it easier to arrange the wheels on the disk cultivators to be able to work on the soil on land of different shapes and sizes.
Date: December 30, 1914
Creator: Craddock, John E.
System: The Portal to Texas History