Tongs. (open access)

Tongs.

Patent for new and improved tongs. This design "relates to certain devices for preventing the legs of tongs from twisting, overlapping, or becoming cross-legged. This is a common fault in almost all tongs when the joint wears a little loose, and is entirely overcome and prevented by [this] invention" (lines 19-24).
Date: April 29, 1884
Creator: Wood, William E.
System: The Portal to Texas History
Drilling Apparatus (open access)

Drilling Apparatus

Patent for a drilling apparatus able to simultaneously bore into objects and rearm itself.
Date: April 29, 1919
Creator: Layne, Mahlon E.
System: The Portal to Texas History
Power-Transmitting Mechanism (open access)

Power-Transmitting Mechanism

Patent for improvements in a power transmitting mechanism.
Date: April 29, 1919
Creator: Smith, Robert W. J.
System: The Portal to Texas History
Improvement in Carriage-Springs (open access)

Improvement in Carriage-Springs

Patent for improved design for carriage-springs with included illustrations of the spring design as well as diagram of placement on a carriage/wagon.
Date: April 29, 1873
Creator: Richardson, J. D.
System: The Portal to Texas History