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Machine for Filing Gin Saws.

Description: Patent for a new and improved machine to sharpen the teeth of cotton gin saws. This design utilizes two bevel-faced wheels connected to a block between two arms that clamp the saw blade. The bevel-faced wheels sharpen the teeth of the blade, and the nuts and bolts of the frame allow for movement as well as tightening and loosening.
Date: August 17, 1880
Creator: McAllister, Alexander F.
Partner: UNT Libraries Government Documents Department

Draft-Gear for Railway Cars

Description: Patent for a draft gear for railway cars that allows a simple and efficient means of repairs or substitutions of sills or beams that may be done without dissociating the draft bar so that a car may not be out of commission for a considerable length of time.
Date: August 17, 1915
Creator: Moorman, James M.
Partner: UNT Libraries Government Documents Department
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