Wrench. (open access)

Wrench.

Patent for a "simple, efficient, and comparatively inexpensive wrench of strong and durable construction" (lines 12-14) with a sliding jaw.
Date: April 7, 1914
Creator: Cunningham, Ira & Flowers, Haywood
System: The Portal to Texas History
Gun Muffler (open access)

Gun Muffler

Patent for a gun-muffler. This design if for use with fire-arms to muffle the discharge sound. Illustration included.
Date: April 5, 1910
Creator: Childress, George F.
System: The Portal to Texas History
Fan-Actuating Mechanism (open access)

Fan-Actuating Mechanism

Patent for a fan actuating mechanism. Attempts to improve upon fans by using a spring to provide maximum speed at minimum cost.
Date: April 6, 1915
Creator: Everitt, James H.
System: The Portal to Texas History