Engine-Plow. (open access)

Engine-Plow.

Patent for the improvement of engine-plows especially regarding those adapted for traction engines. The patent includes specifications and illustrations.
Date: April 21, 1914
Creator: Rarig, Welden C.
System: The Portal to Texas History
Concrete Tile for Building Contruction (open access)

Concrete Tile for Building Contruction

Patent for improvements in concrete tiles for building construction, designed especially for use in building walls, partitions, ceilings, etc. of building structures.
Date: February 10, 1914
Creator: Harter, Leander Douglas
System: The Portal to Texas History
Machine for Raising and Lowering Railway-Tracks and Applying Ballast Thereto. (open access)

Machine for Raising and Lowering Railway-Tracks and Applying Ballast Thereto.

Patent for machines designed for "raising and lowering railway-tracks and applying ballast thereto." (lines 11-12) including illustrations.
Date: January 6, 1914
Creator: Sparks, Walter F.
System: The Portal to Texas History