UNT Libraries Government Documents Department - 18 Matching Results

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Austin Sheet

Description: 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: 1921
Creator: Geological Survey (U.S.)
Item Type: Refine your search to only Map
Location: 30.25 -97.75

Bastrop Sheet

Description: 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: 1929
Creator: Geological Survey (U.S.)
Item Type: Refine your search to only Map
Location: 30.25 -97.25

Cotton-Chopper

Description: Patent for treating soil for agricultural purposes. This invention destroys the ridges used for planting and growing cotton and also cultivating the soil in the vicinity of the ridges.
Date: May 11, 1920
Creator: Kriel, John J. & Kriel, Otto J.
Item Type: Refine your search to only Patent

Ensilage-Packer for Silos.

Description: Patent for a device in "which the center and edges" of a silo "will be packed with equal firmness and solidity" (lines 14-16) of materials, including an illustration and description of the device.
Date: March 23, 1920
Creator: Comer, John H.
Item Type: Refine your search to only Patent

Gearing.

Description: Patent for a speed transmission device that simply and efficiently changes the gears in an automobile especially at fluctuating speeds.
Date: September 13, 1921
Creator: Anderson, Bert
Item Type: Refine your search to only Patent

Georgetown Sheet

Description: 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: 1927
Creator: Geological Survey (U.S.)
Item Type: Refine your search to only Map
Location: 30.75 -97.75

Railroad-Crossing Signal

Description: Patent for signaling devices designed for use along railroads and grade crossings and meant to be automatically operated upon the approach of a train by giving a visible or audible signal at the crossing which will warn travelers of the approach of the train and calcuated to avoid the occurrence of accidents. The signal device includes a track associated train operated circuit closing device for energizing a bell, flashing light, or signal arm or any other equivalence or suitable signal device … more
Date: October 17, 1922
Creator: Hamilton, Morgan Smith & Brady, Charles Pettus
Item Type: Refine your search to only Patent

Round Rock Quadrangle

Description: 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 1:62500
Date: 1928
Creator: Geological Survey (U.S.)
Item Type: Refine your search to only Map
Location: 30.62 -97.62

Shoe

Description: Patent for improving the design and comfort of footwear that uses a fastening strap across the top to allow the user to quickly put on and take off the shoe. The design will also aid in preventing and correcting foot ailments that can occur when the boot or shoe is used in situations that typical cause problems such as long hikes, marches, or standing.
Date: January 20, 1920
Creator: Mann, William L.
Item Type: Refine your search to only Patent

Spring Wheel.

Description: Patent for new and useful improvements in spring wheels sufficient to enable it to successfully stand up under the shocks and jars to which such wheels are ordinarily subjected, while at the same time having all the wearing qualities and resiliency of the pneumatic tire.
Date: May 20, 1920
Creator: Atkinson, George C.
Item Type: Refine your search to only Patent

Taylor Sheet

Description: 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: 1925
Creator: Geological Survey (U.S.)
Item Type: Refine your search to only Map
Location: 30.75 -97.25

Wire-Straightening Tool.

Description: Patent for a wire straightening tool, with illustrations, that relies on a series of levers and cams to apply pressure to the wire as it is pulled through. The patent notes that "the wires can be straightened quickly and with facility, thereby permitting the using of all twisted and bent wire which has heretofore gone to waste and resulting in considerable saving of metal" (page 2, lines 14-18).
Date: January 27, 1920
Creator: Cervenka, Frank L.
Item Type: Refine your search to only Patent
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