Resource Type

Air-Pump. (open access)

Air-Pump.

Patent for an air pump improvement that simpler and cheaper to produce. It also provides a description of "the combination and arragement of parts" (lines 14-15), including illustrations.
Date: May 16, 1916
Creator: Runge, Friedrich Albert
System: The Portal to Texas History
Toy Cannon (open access)

Toy Cannon

Patent for an improvement to toy cannons to enable marbles and other spherical objects can be fed into cannon and fired providing a varied range of distance.
Date: March 14, 1916
Creator: Osborn, Carl B.
System: The Portal to Texas History
Insulator (open access)

Insulator

Patent for Insulator
Date: November 14, 1916
Creator: Williams, Roger A.
System: The Portal to Texas History