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Sand-Screen for Wells.

Patent for a sand-screen for wells "to provide a simple and efficient device adapted for use on ordinary well-tubing, the same being capable of construction and repair at small cost, being readily attachable to and removable from the tubing, and having means for effectually excluding sand from the inlet end of the tubing, while permitting the free inflow of water therethrough" (lines 9-17).

Date: January 13, 1903

Creator: Jackson, Stokeley & Thompson, Neals

Item Type: Patent

Partner: UNT Libraries Government Documents Department

Rail-Joint

Patent for connecting fish plates at the meeting ends of rails where the rails are securely connected without the necessity of employing bolts. Another object of this improvement is to provide a combined fish plate and rail chair which can be applied to the rails.

Date: January 13, 1920

Creator: Jezik, Joseph J.

Item Type: Patent

Partner: UNT Libraries Government Documents Department