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Temperature-Regulator

Description: Patent for a temperature-regulator that regulates the temperature of fluids (either in liquid, gas, or air) passing through. It is important when regulating the temperature of hydro-carbon fuels in either an internal combustion engine or a furnace.
Date: August 26, 1919
Creator: Brooks, Howard
Partner: UNT Libraries Government Documents Department

Derrick.

Description: Patent for improvements to derricks, specifically those used on the decks of ships and other vessels, to prevent the structure from becoming entangled with fall ropes or cables during operation.
Date: August 19, 1919
Creator: Scanlan, Thomas J.
Partner: UNT Libraries Government Documents Department

Film for Cameras.

Description: Patent for photographic film that contains alternating sensitized and non-sensitized sections for the purpose of creating an initial exposure view as a guide to use when taking a subsequent actual photograph.
Date: August 5, 1919
Creator: Sartorius, Oton; Gándara, José F. & Colonna, Benito
Partner: UNT Libraries Government Documents Department
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