Camp-Cooker. (open access)

Camp-Cooker.

Patent for "a new and useful improvement in a form of camp cooker, or camp stove and particularly appertains to a folding and demountable cooker" (lines 8-11), including instructions and illustrations.
Date: May 21, 1918
Creator: Hanson, Frank
System: The Portal to Texas History
Air-Regulating Attachment. (open access)

Air-Regulating Attachment.

Patent for a new attachment in a carburetor that regulates air through suction and has a valve to release pressure from an engine, including illustrations.
Date: May 14, 1918
Creator: Kimbler, Henry R.
System: The Portal to Texas History
Tandem-Roller Attachment. (open access)

Tandem-Roller Attachment.

Patent for improved, simply constructed, and high-efficiency tandem roller attachments with the purpose of, "preventing surface waving of roadways," (lines 18-19) including illustrations.
Date: May 14, 1918
Creator: Brown, Frank O.
System: The Portal to Texas History
Shank-Stiffener and Heel-Plate for Shoes. (open access)

Shank-Stiffener and Heel-Plate for Shoes.

Patent for "shank stiffener and heel securing plate for use in the manufacture of shoes or in the repair work" (lines 25-27) to prevent or repair buckling, loosening, and breaking of heels due to shanks of soles being made from "leather, compressed paper, or steel" (lines 18-19) which historically have not been able to support the heel of the shoe.
Date: May 7, 1918
Creator: Cobler, Lee Ora
System: The Portal to Texas History
Coffee Roaster. (open access)

Coffee Roaster.

Patent for a coffee roaster, with key features such as electric heat and agitation of coffee beans during roasting, including illustrations.
Date: May 6, 1918
Creator: Shortt, Everett T.
System: The Portal to Texas History