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Well-Drilling Apparatus.

Description: Patent for a well-drilling apparatus that easily attaches drill-bits to the ends of drill-tubes without removing the tubes from the well. It is meant for Artesian well-boring machines.
Date: April 9, 1895
Creator: Horton, Stephen A.
Item Type: Refine your search to only Patent
Partner: UNT Libraries Government Documents Department

Half-Car Unloader

Description: Patent for an improved and simplified mechanism of Half-Car Unloaders, which unloads earth materials such as coal and ore from a railroad car more easily and effectively by lifting up a train car, unloading its contents, and placing it back on the railroad track.
Date: February 9, 1915
Creator: Scardino, Mario P. & Scardino, Peter
Item Type: Refine your search to only Patent
Partner: UNT Libraries Government Documents Department
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