Description: Patent for a float-valve used in water-troughs for cattle and other liquid containers. It closes "when the surface of the water reaches the desired point and [opens] when the surface of the water falls below said point" (lines 14-17).
Date: January 5, 1897
Creator: Halley, Hillary H. & McCulley, Robert I.
Item Type: Refine your search to only Patent
Partner: UNT Libraries Government Documents Department