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Knife.
Patent for a knife with multiple curved blades used to cut food.
Date:
July 13, 1920
Creator:
Oertli, Henri
System:
The Portal to Texas History
Signaling-Boiler
Patent for a signaling boiler designed to test food during the cooking process to determine whether food has completed cooking, and to signal via a whistle when said food is determined to have been properly cooked. Additional design details include the provision of a supporting mechanism for potatoes and other vegetables to rest on, as well as a compact form of the overall device.
Date:
May 4, 1920
Creator:
Kelley, Marven
System:
The Portal to Texas History