Resource Type

Keying Device for Cutter Heads (open access)

Keying Device for Cutter Heads

Patent for a keying device for cutter heads. This invention is designed attaches cutter heads to rotate shafts to align the cutter head. Illustration included.
Date: December 10, 1912
Creator: Ash, William D. & Herndon, James A.
System: The Portal to Texas History
Process Of Making Fertilizer (open access)

Process Of Making Fertilizer

Patent for a process of making fertilizer.
Date: December 11, 1906
Creator: Luckey, William R.
System: The Portal to Texas History