Collection
United States Census Map Collection
524
Texas Patents
494
USGS Topographic Map Collection
268
Texas State Publications
48
Texas Attorney General Opinions
17
Texas Laws and Resolutions Archive
14
Technical Report Archive and Image Library
2
Government Documents General Collection
2
Office of Scientific & Technical Information Technical Reports
1
Serial/Series Title
2000 Census County Subdivision Block Map
117
2010 Census County Block Map
105
2010 Census P.L. 94-171 County Block Map
104
2000 Census County Block Map
98
1990 Census County Block Map
97
7.5 Minute Series (Topographic)
97
Digital US Topo Maps: 7.5 Minute Series (Topographic)
64
15 Minute Series (Topographic)
35
Digital Raster Graphic Topographic Maps: 7.5 Minute Series (Topographic)
24
30 Minute Series
18
45 More
Country
States
Counties
Decade
Month
Language
1,370 Matching Results
Results open in a new window/tab.
Results:
1 - 24 of
1,370
next
Aparatus for Cleaning Lechuguilla, Henequen, and Analogous Fibrous Plants.
Patent for an improved apparatus for scraping lechugilla, henequen, and analogous fibrous plants. This apparatus scrapes the stalks of the plants mechanically and separates the pulp from the fiber of the plant so that the fiber will be cleaned and ready for use.
Date:
September 3, 1918
Creator:
Aguilar, Alfonso
Object Type:
Patent
System:
The Portal to Texas History
Railway Switch
Patent for a railway switch. Illustration included.
Date:
August 18, 1903
Creator:
Aley, Frank W.
Object Type:
Patent
System:
The Portal to Texas History
Automatic Density-Indicator for Slime-Pulp Separators.
Patent for devices that thickens slimes for ore milling operations in which it will indicate the density and regulate it so it will not go below a predetermined value.
Date:
June 22, 1920
Creator:
Allen, Charles
Object Type:
Patent
System:
The Portal to Texas History
Automatic Ore and Pulp Sampler
Patent for a automatic ore and pulp sampler. This invention represents a settling tank to accumulate particles. Illustration included.
Date:
March 15, 1904
Creator:
Allen, Charles
Object Type:
Patent
System:
The Portal to Texas History
Automatic Ore And Slime Separator
Patent for a automatic ore and slime separator. This invention is designed to separate the sand and other solid particles from water. Illustration included.
Date:
March 15, 1904
Creator:
Allen, Charles
Object Type:
Patent
System:
The Portal to Texas History
Automatic Separating Device.
Patent for an automatic separating device. This device operates with a link that connects the float level at the top of the tank with a valve handle at the bottom of the tank to control discharge from the tank.
Date:
January 22, 1918
Creator:
Allen, Charles
Object Type:
Patent
System:
The Portal to Texas History
Automatic Separator and Evaporator.
Patent for an improved automatic separator and evaporator which controls the intake with an included air-lift or jet-ejector, including illustrations.
Date:
April 5, 1921
Creator:
Allen, Charles
Object Type:
Patent
System:
The Portal to Texas History
Automatic Silt And Sand Separator.
Patent for an automatic silt and sand separator that settles and discharges sand, slimes and any foreign matters.
Date:
March 15, 1904
Creator:
Allen, Charles
Object Type:
Patent
System:
The Portal to Texas History
Classifier and Separator.
Patent for classifiers and separators used in mining to separate solids and liquids in the tank. It allows for easy removal and replacement of parts as they wear.
Date:
March 19, 1918
Creator:
Allen, Charles
Object Type:
Patent
System:
The Portal to Texas History
Feed Spout Barrier
Patent for "a feel spout barrier for slime thickeners, settling tanks, separating tanks and the like" (lines 8-10) with instructions and illustrations.
Date:
April 12, 1921
Creator:
Allen, Charles
Object Type:
Patent
System:
The Portal to Texas History
Hydraulic Classifier.
Patent for hydraulic classifier for the treatment of ore. The invention subjects settling solid particles to a secondary classification and prevent the contamination of the settling solids before they are discharged.
Date:
March 21, 1922
Creator:
Allen, Charles
Object Type:
Patent
System:
The Portal to Texas History
Overflow Control for Separating Tanks.
Patent for improved overflow control for separating tanks, accounting for, "slime thickness, settling tanks, separating tanks, and the like," ensuring, "uniform overflow." (lines 8-10; 27), with instructions and illustrations.
Date:
March 4, 1919
Creator:
Allen, Charles
Object Type:
Patent
System:
The Portal to Texas History
Overflow Separating Device.
Patent for an invention that allows for the separation of materials, such as fluid, between two objects, one of higher altitude than the other, with minimal disruption at the surface of the lower object.
Date:
October 5, 1920
Creator:
Allen, Charles
Object Type:
Patent
System:
The Portal to Texas History
Sand and Slime Separator and Classifier.
Patent for a sand and slime separator and classifier for use in mining operations.
Date:
December 7, 1909
Creator:
Allen, Charles
Object Type:
Patent
System:
The Portal to Texas History
Setting-Basin Separating Device
Patent for Settling Basin-Separating Devices. This device improves the issue of unwanted discharge shown in prior devices
Date:
May 11, 1990
Creator:
Allen, Charles
Object Type:
Patent
System:
The Portal to Texas History
Slime-Pulp Thickener.
Patent for a machine used in the wet milling process. It allows proportionate distribution of liquids to aide during the thickening process.
Date:
April 17, 1923
Creator:
Allen, Charles
Object Type:
Patent
System:
The Portal to Texas History
Slime-Pulp Thickener
Patent for a new and useful improvement in slime pulp thickeners
Date:
November 30, 1920
Creator:
Allen, Charles
Object Type:
Patent
System:
The Portal to Texas History
Slime-Pulp Thickener
Patent for a device for thickening slime or pulp in the treating of ores wet milling. The device controls the disbursement of slim pulp in the thickener, producing a better solid to liquid ratios.
Date:
August 17, 1920
Creator:
Allen, Charles
Object Type:
Patent
System:
The Portal to Texas History
Slime Pulp Thickener.
Patent for a "device for thickening slime or pulp, and particularly pertains to a structure similar to that disclosed in my co-pending application entitled "Slime pulp thickener," serial number 173,785, filed June 9, 1917, and of which the present application is a division" (lines 8-14). Additionally, described as a device that automatically releases thickened pulp when proper density is achieved.
Date:
October 5, 1918
Creator:
Allen, Charles
Object Type:
Patent
System:
The Portal to Texas History
Slime-Separator.
Patent for a slime-separator "to provide means for automatically regulating the separate water flow, and discharging the solid proportionally with the settling of the solids in the receptacle" (lines 44-47). The patent includes illustrations and instructions.
Date:
November 24, 1914
Creator:
Allen, Charles
Object Type:
Patent
System:
The Portal to Texas History
Slime Separator and Classifier.
Patent for settler, separator, and classifier of different solid and liquid particles, includes illustrations.
Date:
July 20, 1915
Creator:
Allen, Charles
Object Type:
Patent
System:
The Portal to Texas History
Slime Separator and Classifier
Patent for a pulp separator and classifying apparatus. Illustrations included.
Date:
February 15, 1910
Creator:
Allen, Charles
Object Type:
Patent
System:
The Portal to Texas History
Thickener and Means for Removing Settled Solids Therefrom.
Patent for a machine which can automatically and continuously remove thickened material, which is a byproduct of wet milling ores. "The present device has been particularly designed to permit feed and discharge to be on the same level or for that matter the constant density discharge may be above or below the level of the feed stream, as may best fit the conditions of the particular installation" (lines 39-45).
Date:
October 5, 1920
Creator:
Allen, Charles
Object Type:
Patent
System:
The Portal to Texas History
Thickener (Sewage Type).
Patent for sewage thickener that relies on sewage solids to sink to the bottom of the sewer and fall into the thickener, in which the thickener will press the solid sewage into a pulp. The pulp will be pressed at a predetermined density, and then the pressed pulp will float to the top of the sewage to be removed. The separation of liquid and solid sewage was predicted to prevent overflow.
Date:
March 11, 1920
Creator:
Allen, Charles
Object Type:
Patent
System:
The Portal to Texas History