Improvement in Fruit-Corers. (open access)

Improvement in Fruit-Corers.

Patent for a device to core fruit and cut it into slices.
Date: December 17, 1872
Creator: Alexander, Oscar W.
System: The Portal to Texas History
Vehicle Guiding Mechanism (open access)

Vehicle Guiding Mechanism

Patent for "an improved and simplified construction" for vehicle steering axles (line 15), including illustrations.
Date: February 17, 1914
Creator: Brandt, Friedrich Wilhelm
System: The Portal to Texas History
Post Hole Digger. (open access)

Post Hole Digger.

Patent for a new post hole digger that both facilitates the creation of straight sides to the hole and a mechanism to allow for easy removal of the dirt.
Date: August 17, 1916
Creator: Armstrong, John Joshua, Sr.
System: The Portal to Texas History