Metallic Roof. (open access)

Metallic Roof.

Patent for new and useful improvements to the design of portable metallic roofs, including illustrations.
Date: May 22, 1917
Creator: Draper, David F.
System: The Portal to Texas History
Combined Rule and Square. (open access)

Combined Rule and Square.

Patent for new and useful Improvements in Combined Rules and Squares which makes it "possible to form a rigid straight rule or one or more rigid squares" (lines 24-25), including illustration and instructions.
Date: August 21, 1917
Creator: Grossman, Edwin
System: The Portal to Texas History
Automatic Binder Attachment for Hay Presses (open access)

Automatic Binder Attachment for Hay Presses

Patent for automatic binder attachment for hay presses with accompanying illustrations of the patent.
Date: October 16, 1917
Creator: Trigg, John B & Hill, William E
System: The Portal to Texas History
Watering-Trough. (open access)

Watering-Trough.

Patent for a valve that controls the flow of drinking water from a reservoir or tank into a trough. It can be operated by domestic animals and automatically shuts off when they are finished drinking.
Date: August 21, 1917
Creator: Atkinson, George C.
System: The Portal to Texas History
Corn Popper (open access)

Corn Popper

Patent for corn-popper improvement by connecting to the cover of the popper a rotating agitating blade which would prevent the corn within from burning.
Date: April 10, 1917
Creator: Zschiesche, William H. M.
System: The Portal to Texas History
Internal Combustion Engine (open access)

Internal Combustion Engine

Patent for internal combustion engine.
Date: January 16, 1917
Creator: Box, Walter
System: The Portal to Texas History