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Grain-Car Door

Description: Patent for a grain-car door.
Date: May 19, 1903
Creator: Church, Josiah W. & O'Gorman, M.J.
Partner: UNT Libraries Government Documents Department

Machine for Grinding Disks.

Description: Patent for improvements in grinding-machines in which it can “hold the disk rigidly at a desired angle and can be adjusted from or toward a grinding device;” (lines 13-15) by using a “combination of an adjustable gear, a grinding-wheel and means for imparting motion from the grinding-wheel to the gear; of a spring-pressed roller above the gear and adapted to hold a disk thereon in contact with the wheel.” (Page 2, lines 65-70) Illustration is included.
Date: March 17, 1903
Creator: Shipp, Abijah T.
Partner: UNT Libraries Government Documents Department