Combination Safety-Razor and Hair-Trimmer. (open access)

Combination Safety-Razor and Hair-Trimmer.

Patent for a tool used for shaving or hair trimming. This device has a reversible plate carrying a guard and comb teeth. The plate being reversible to permit the guard to be used in connection with a blade for shaving and to permit the teeth to be used in connection with a blade for hair trimming.
Date: August 20, 1918
Creator: Brasier, William Harry
System: The Portal to Texas History
Aerocompass. (open access)

Aerocompass.

Patent for an aerocompass, which improves upon a compass combined with inclinometers or map-boards. It is intended for use on submarines, airplanes, or in an area when it would be difficult to use a regular compass.
Date: January 8, 1918
Creator: Fischer, Fred Charlie.
System: The Portal to Texas History
Vacuum Cotton-Picking Machine. (open access)

Vacuum Cotton-Picking Machine.

Patent for vacuum cotton picking machine and improvements, such as it is more portable, a receiver for the cotton and discharge of the cotton, and an improved cotton picking nozzle.
Date: February 12, 1918
Creator: Chaney, Bailey E.
System: The Portal to Texas History
Switch. (open access)

Switch.

Patent for a multiple point switch that may be connected to a standard light socket.
Date: November 19, 1918
Creator: Kilmer, Edward J.
System: The Portal to Texas History
Surgical and Bathing Apparatus. (open access)

Surgical and Bathing Apparatus.

Patent for improvements to surgical and bathing apparatus.
Date: April 23, 1918
Creator: Scroggin, Jethro W.
System: The Portal to Texas History
Flush-Valve (open access)

Flush-Valve

Patent for a valve for a general flush tank.
Date: April 9, 1918
Creator: Cahill, Thomas J.
System: The Portal to Texas History