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Window Sash And Curtain Operating Mechanism

Description: Patent for a window sash and curtain mechanism that works in tandem with electronic security systems. Sash/Curtains can be moved normally, but an alarm can be set to detect when the window itself is tampered with.
Date: October 25, 1917
Creator: Schwarz, Henry W.
Partner: UNT Libraries Government Documents Department

Lineman's Chair

Description: Patent for a chair which allows a lineman to connect cables and lines more easily. Illustrations included.
Date: October 25, 1910
Creator: Davis, John W.
Partner: UNT Libraries Government Documents Department

Spark-Arrester

Description: Patent for a spark arrester designed to extinguish the glowing cinders of smoke stacks. Illustrations included.
Date: October 25, 1910
Creator: Goodrich, Luman L., Jr.
Partner: UNT Libraries Government Documents Department

Stock Car

Description: Patent for stock car. This is a train car for moving livestock. Illustration included.
Date: October 25, 1910
Creator: Jones, Jeremiah Conklin & Broyles, Winn
Partner: UNT Libraries Government Documents Department

Sand Screen

Description: Patent for a sand screen. This invention is for sifting and screening sand. Illustration included.
Date: October 25, 1910
Creator: Tress, Paul G.
Partner: UNT Libraries Government Documents Department

Cattle-Guard

Description: Patent for a cattle guard to prevent cattle from treading upon railroad tracks. Illustrations included.
Date: October 25, 1910
Creator: Reed, Conwell P.
Partner: UNT Libraries Government Documents Department
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