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Valve and Valve-Seat.
Patent for a valve and valve seat made of stainless steel for the purpose of preventing rusting and corrosion.
Date:
September 20, 1921
Creator:
Bevelle, Joseph C. & Smith, Joseph J.
System:
The Portal to Texas History
Piston Packing
Patent for an improved means of packing pistons in gas, steam, or similar engines, which reduces the likelihood of loss of compression.
Date:
September 27, 1921
Creator:
Williams, Nolan S.
System:
The Portal to Texas History
Fiber Extracting Machine
Patent for "new and improved Fiber-Extracting Machine." (6-7). These improvements are specific to equipment used to separate fibers from vegetable and plant matter. The primary function of this equipment is to extract fiber from the agave plant.
Date:
September 6, 1921
Creator:
Lambert, William O.
System:
The Portal to Texas History