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Water or Oil Screen.

Description: Patent for a water or oil well screen to keep mud and other debris out of the barrel of the well.
Date: March 24, 1908
Creator: Childress, Authey Eli
Partner: UNT Libraries Government Documents Department

Bale Ejector for Baling Presses.

Description: Patent for a new and improved ejector for baling presses. This design "consists in the combination, with a baling-press follower having channels with inclines and recesses at their rear ends, of trucks provided with ropes or chains, pulleys, pulley-segments having arms, and stationary arms for drawing the trucks forward, and with ropes or chains, pulleys, and weights for drawing the truck rearward. The trucks have recesses with inclined shoulders in their sides to receive prongs having front an… more
Date: March 24, 1885
Creator: Duval, John Lum
Partner: UNT Libraries Government Documents Department
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