UNT Libraries Government Documents Department - 13 Matching Results

Search Results

Barwise School Quadrangle
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 1:31680
Buckburnett Quadrangle
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 1:31680
Burkburnett Quadrangle
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 1:31680
Clara Quadrangle
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 1:31680
Cut-off Valve for Pipe-Lines
Patent for cut-off valve for pipe-lines intended for oil companies.
Electra Quadrangle
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 1:31680
Glass Manufacture dated November 5, 1918
Patent for apparatus to improve the overall quality and efficiency of glass production. This includes both window and sheet glass. It assists in developing sheet glass through blowing, drawing, and ladling.
Holder.
Patent for improved book holder for holding down the leaves of an open book which can be adjusted to fit various widths.
Iowa Park Quadrangle
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 1:31680
Measure for Oil-Wells.
Patent for a device measuring the depth of oil and other wells by computing the distance preferably by the sand line or other line as it is let down from the earth's surface to the bottom of the well.
Pump
This patent is for pumps. This patent allows for the pump barrel to be readily disengaged from its normal positive engagement with the well tube for removal from said tube for repairs or any other reason.
Support for Telegraph Line-Wires and the Like.
Patent for "supports for telegraph and telephone line wires, electric light line wires, and the like, and the object is to provide simple and highly efficient brackets for holding such wires securely in place ... so that the wires will not drop to the ground" (lines 10-18), including instructions and illustrations.
Vacuum-Regulator for Oil-Pumps.
Patent for vacuum regulator for oil pump. This device is simply constructed and easy to operate. It is an automatic cut-off in the vacuum of the pipe line to the pump.
Back to Top of Screen