UNT Libraries Government Documents Department - 7 Matching Results

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Ash Pan
Patent for an ash pan. Illustration included.
Balanced Valve
Patent for a balanced valve for a steam powered sawmill.
Fire-Escape
Patent for a flexible chute that attaches to the window frame. The chute uses hinges or a pivot so it can be moved out of the way when not is use.
[Log Turner]
Patent for a log turner. This "invention relates to an improvement in nigger-bars used in connection with steam-cylinders to turn the logs on sawmill-carriages" (line 8-11). Illustration included.
Pressure-Regulator
Patent for a Pressure-Regulator, which is a device for "automatically regulating the pressure of steam, compressed air, or other gases while passing through a conduit" (lines 8-10).
Soil map, Texas, Lufkin sheet
Map displays soil types along with creeks, towns, roads and railroads. Includes legend and soil profiles.
Soil survey of the Lufkin area, Texas
Text describes the location, climate, physiography and geology, soils, and agricultural conditions of the Lufkin area in Texas.
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