Automatic Valve (open access)

Automatic Valve

Patent for an automatic valve that uses a lever to open and close quickly, with illustrations.
Date: November 20, 1906
Creator: Pinkerton, Henry S.
System: The Portal to Texas History
Medical Compound (open access)

Medical Compound

Patent for a medical compound which "when taken internally, is a cure for gonorrhea, gravel, dysentery, and diarrhea, and when applied externally a cure for rheumatism" (lines 12-14).
Date: September 4, 1906
Creator: Mendez, Jesus M.
System: The Portal to Texas History
Post Hole Digger (open access)

Post Hole Digger

Patent for a post hole digger with an illustration.
Date: November 13, 1906
Creator: Wall, William J.
System: The Portal to Texas History
Neck-Yoke Center. (open access)

Neck-Yoke Center.

Patent for a device that improves, simplifies, and strengthens the construction of neck yoke centers.
Date: February 6, 1906
Creator: Quick, E. B.
System: The Portal to Texas History