Improvement in Traction-Engines. (open access)

Improvement in Traction-Engines.

Patent for a traction engine "for running on common roads and rails, and to be used for drawing plows, and as a motive power generally" (lines 8-10) including illustrations.
Date: July 31, 1877
Creator: Walker, Leander
System: The Portal to Texas History
Improvement in Brick-Machines. (open access)

Improvement in Brick-Machines.

Patent for an improvement in brick-machines by which a new combination of construction materials is contrived.
Date: July 31, 1876
Creator: Michel, Ferdinand
System: The Portal to Texas History