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Locking Device for Car-Doors.

Description: Patent for a locking device for a sliding train car capable of locking automatically upon close, including illustrations.
Date: May 9, 1916
Creator: Tierney, Henry J.
Partner: UNT Libraries Government Documents Department

Well-Drilling Device.

Description: Patent for well drilling device with new and useful improvements in well-drilling device for simultaneously drilling the main hole and an advance or "rat-tail" hole.
Date: March 1, 1921
Creator: Smith, Primus W. & Bookhout, John J.
Partner: UNT Libraries Government Documents Department

Well-Drilling Bit.

Description: Patent for Well-Drilling Bit designed to cut faster, disassemble for easier sharpening, and reduce cost.
Date: unknown
Creator: Smith, Primus W.
Partner: UNT Libraries Government Documents Department

Machine for Assorting, Stacking, and Counting Coins

Description: Patent for a machine which organizes, stacks, counts, and gives the total value of a collection of coins. Illustrations included.
Date: April 13, 1909
Creator: Brewster, Bertram Forrest
Partner: UNT Libraries Government Documents Department

Improvements in Ice-Machines

Description: Patent for an improved make and design for ice-machines including instructions for construction and illustrations.
Date: March 27, 1877
Creator: Rankin, Thomas L.
Partner: UNT Libraries Government Documents Department

Method of Treating Ores.

Description: Patent for "new and useful Improvements in methods of Treating Ores, of which the following is a specification. The present invention relates to a method of treating ores carrying gold and silver values in any form amenable to cyanid treatment or flotation" (lines 6-12).
Date: May 8, 1917
Creator: Friberger, Harry Louis
Partner: UNT Libraries Government Documents Department

Stock-Car

Description: Patent for an improvement on patent no. 326,591 so as "to enable a series of troughs in a stock-car to be extended toward and withdrawn 'from a position in line with the heads of the stock simultaneously; second, to provide for a vibrating water-trough a self-folding end support; third, to provide a car-door for the entrance of the stock which is capable of being folded and will unfold to close the door-opening in line with the inner surface of the car; fourth, to provide a sliding rear suppor… more
Date: January 6, 1891
Creator: Stoner, Jacob B.
Partner: UNT Libraries Government Documents Department

Drill-Bit

Description: Patent for new improvement in drill-bits. The object of the invention is to "provide the driller with advanced knowledge of the formation into which he is about to extend his main hole".
Date: January 11, 1921
Creator: Smith, Primus W.; Bookhout, John J. & Monce, Edwin W.
Partner: UNT Libraries Government Documents Department

Separable Locking Rack for Driving Mechanism

Description: Patent for separable locking rack for driving mechanism. Illustrations included.
Date: October 25, 1910
Creator: Brewster, Bertram F. & Wilson, Walker Scott
Partner: UNT Libraries Government Documents Department

Sash-Fastener.

Description: Patent for new and improved sash-fastener so as to "lock the sash when elevated as well as closed" (line 15 & 16), including illustrations.
Date: May 6, 1902
Creator: Neher, John F. & Neher, Noah N.
Partner: UNT Libraries Government Documents Department
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