Tank-Bottom Holder. (open access)

Tank-Bottom Holder.

Patent for a tank bottom holder that allows a tank bottom to be "securely and accurately maintained in proper cooperative relation to the edge turning tool and readily manipulated in the required manner" (lines 13-17). That tank bottom holder can be adjusted to fit a variety of tank bottom sizes, and the patent includes illustrations and instructions.
Date: August 11, 1914
Creator: Smith, Walter O.
Object Type: Patent
System: The Portal to Texas History
The Deep Boring at Spur (open access)

The Deep Boring at Spur

Report concerning drill boring exploring the geological features underneath Spur, Texas,
Date: 1914
Creator: Udden, Johan August, 1859-1932
Object Type: Report
System: The UNT Digital Library