UNT Libraries Government Documents Department - 3 Matching Results

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Las Cruces Sheet

Topographic map of a portion of Texas from the United States Geological Survey (USGS) project. The map includes towns, historic or notable sites, bodies of water, and other geologic features. Scale 1:125000

Date: 1893

Creator: Geological Survey (U.S.)

Item Type: Map

Location: 32.25 -106.75

Pump.

Patent for an improved, useful, durable, and simple pump that is powered by cattle as they walk into an enclosure. It consists of a water receiving chamber with inlet openings on one end, supporting rods, a hollow pump piston with a spout, a valve on the bottom of the pump piston, a walking beam, a bridge, hinges, angle-irons, and a counterbalances weight.

Date: April 18, 1893

Creator: Clayton, James W.

Item Type: Patent

Ore-Separator.

Patent for an improved, efficient, simple, and durable ore separator that quickly separates precious metals from sand. The operator puts the unfiltered material in the top of the separator, the material goes down a slide, through a stirrer, and out the other end.

Date: August 15, 1893

Creator: Dilworth, Robert