Chain-Tightening Tool (open access)

Chain-Tightening Tool

Patent for a tool for tightening automobile wheel chains that is "simple in construction and may be manufactured at a comparatively low cost" (lines 14-16).
Date: August 27, 1918
Creator: Ruthven, George W.
System: The Portal to Texas History
Submarine-Destroyer. (open access)

Submarine-Destroyer.

Patent for submarine destroyer that is a projectile of the harpoon type adapted to be dropped from an aeroplane with the purpose to destroy a submarine or other vessel.
Date: November 27, 1917
Creator: Garner, William W.
System: The Portal to Texas History