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Apparatus for the Manufacture of Ice.

Description: Patent for a new and improved ice maker. This design calls for "two or more sheets of galvanized iron or other metal set in a tank of fresh water, one on either side of the evaporation-pipes, and held in a position parallel to each other by anchors or yokes that connect them" (lines 15-20). This eliminates the need for strong (ammoniacal) brine and is a faster, more reliable, and less leaky ice-making process than previous ones that used said brine.
Date: March 2, 1880
Creator: Zilker, Andrew J.
Partner: UNT Libraries Government Documents Department

Bale Tie.

Description: Patent for a new and improved tie for bales. This design calls for one long, flat piece of scrap metal to be folded over on itself twice so that there are four layers of metal as well as a loop (or "rib") on either end. Then, a hole should be cut through all four layers with a tapered opening through the edge; this design is cheaper and more durable than previous bale ties.
Date: August 24, 1880
Creator: Riesel, Henry
Partner: UNT Libraries Government Documents Department

Apparatus for the Manufacture of Ice.

Description: Patent for "a new and improved Apparatus for the Manufacture of Ice" (lines 3-4)
Date: July 13, 1880
Creator: Zilker, Andrew J.
Partner: UNT Libraries Government Documents Department

Apparatus for Obtaining a Vacuum.

Description: Patent for a new and improved vacuum. This design utilizes a liquid pump, plates, tubes and valves to make "about as perfect a vacuum . . . as can be obtained by an ordinary pump" (lines 53-55).
Date: July 27, 1880
Creator: Ward, Lyman Henry
Partner: UNT Libraries Government Documents Department
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