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Windmill

Description: Patent for a windmill that changes directions with the wind automatically and provides more power to the pump.
Date: July 23, 1912
Creator: Romans, John W.
Item Type: Refine your search to only Patent
Partner: UNT Libraries Government Documents Department

Grain Door

Description: Patent for a railway car door that is designed to assist with loading and unloading of grain
Date: October 23, 1915
Creator: Alquist, Sven Peter
Item Type: Refine your search to only Patent
Partner: UNT Libraries Government Documents Department

Grain-Car Door.

Description: Patent for Grain-Car Door. "The object the present invention is to arrange the door for use in transporting grain without requiring any additional grain door or planking on the inside door opening." (Line 3)
Date: April 23, 1918
Creator: Hartough, Edward W.
Item Type: Refine your search to only Patent
Partner: UNT Libraries Government Documents Department

Rail-Fastening Device.

Description: Patent for a rail fastening device for use in building street car tracks on roads with concrete foundations. The fastener is put in place in the wet concrete and held fast there by its hardening and eliminates the need for cross ties.
Date: April 23, 1907
Creator: Crerar, James P.
Item Type: Refine your search to only Patent
Partner: UNT Libraries Government Documents Department
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