Apparatus for Building Circular Walls and Means for Adjusting the Apparatus. (open access)

Apparatus for Building Circular Walls and Means for Adjusting the Apparatus.

Patent for a "scaffold adjusting apparatus, and particularly to means for elevating and lowering scaffolds for building circular wills or silos, circular tanks, smoke stacks, and similar circular walls "(lines 10-14), including illustrations.
Date: February 2, 1915
Creator: Nash, Alexander Q.
System: The Portal to Texas History
Machine for Picking and Cleaning Cotton. (open access)

Machine for Picking and Cleaning Cotton.

Patent for a new machine for picking and cleaning cotton with all its specifications.
Date: April 2, 1912
Creator: Johnson, Billie
System: The Portal to Texas History